I. Data Set Descriptors A. Title: Steven C. Pennings. 2017. Mollusc population abundance monitoring: Fall 2015 mid-marsh and creekbank infaunal and epifaunal mollusc abundance based on collections from GCE marsh, monitoring sites 1-10. Georgia Coastal Ecosystems LTER Data Catalog (data set INV-GCEM-1607; http://gce-lter.marsci.uga.edu/public/app/dataset_details.asp?accession=INV-GCEM-1607) B. Accession Number: INV-GCEM-1607 C. Description 1. Originator(s): Name: Steven C. Pennings Address: Department of Biology and Biochemistry University of Houston Houston, Texas 77204-5513 Country: USA Email: scpennin@central.uh.edu 2. Abstract: This data set is the Fall 2015 estimate of infaunal and epifaunal mollusc abundance at the GCE-LTER marsh sites used for population monitoring. Species abundance was determined by hand-collecting all the infaunal and epifaunal molluscs from within quadrats of known area in mid-marsh and creekbank zones (n = 4 quadrats per zone) at all sites. The molluscs were returned to the lab, fixed in ethanol, transferred to and preserved in ethanol, counted and measured (size data is reported separately). The counts were converted to number per square meter. Gastropod species are listed first, followed by bivalve species. Size distribution data for these collections may be found in the GCE-LTER data set INV-GCEM-1607a. 3. Study Type: Monitoring 4. Study Themes: Aquatic Invertebrate Ecology 5. LTER Core Areas: Populations 6. Georeferences: none 7. Submission Date: Mar 15, 2017 D. Keywords: abundance, Animalia, Archaeopulmonata, Bilateria, Bivalvia, Corbiculidae, Corbiculoidea, creek bank, density, Detracia, Detracia floridana, Ellobiidae, epifauna, fall, Gastropoda, GCE, Georgia, Georgia Coastal Ecosystems, Geukensia, Geukensia demissa, Heterodonta, Hydrobiidae, Ilyanassa, infauna, intertidal, Littoraria, Littoraria irrorata, Littorinidae, Lophozoa, LTER, marshes, Melampus, Melampus bidentatus, mid-marsh, Mollusca, mollusks, monitoring, Mytilidae, Mytiloida, Nassariidae, Nassarius obsoletus, Neogastropoda, Neotaenioglossa, Polymesoda, Polymesoda caroliniana, populations, Prosobranchia, Protostomia, Pteriomorphia, Sapelo Island, Stylommatophora, Succineidae, USA, vegetation, Veneroida II. Research Origin Descriptors A. Overall Project Description 1. Project Title: Georgia Coastal Ecosystems LTER Project III 2. Principal Investigators: Name: Merryl Alber Address: Dept. of Marine Sciences University of Georgia Athens, Georgia 30602-3636 Country: USA Email: malber@uga.edu 3. Funding Period: Nov 01, 2012 to Nov 01, 2018 4. Objectives: The research proposed for GCE-III is designed to address how variations in salinity and inundation, driven by climate change and anthropogenic factors, affect biotic and ecosystem responses at different spatial and temporal scales, and to predict the consequences of these changes for habitat provisioning and carbon (C) sequestration across the coastal landscape. 5. Abstract: The Georgia Coastal Ecosystems (GCE) LTER is located along three adjacent sounds on the Atlantic coast and includes both intertidal marshes and estuaries. Long-term drivers of climate change, sea level rise and human alterations of the landscape will cause transitions in dominant habitat types (state changes) within the GCE domain by changing the amounts and patterns of water delivery across the landscape. These changes in water delivery can be conceptualized as presses and pulses in river inflow, local runoff, groundwater input, and tidal inundation, which will in turn manifest themselves as changes in salinity and inundation patterns in the domain. The research proposed for GCE-III is designed to address how variations in salinity and inundation, driven by climate change and anthropogenic factors, affect biotic and ecosystem responses at different spatial and temporal scales, and to predict the consequences of these changes for habitat provisioning and carbon (C) sequestration across the coastal landscape. The goals are to: 1) Track long-term changes in climate and human actions in the watershed and adjacent uplands, and evaluate the effects of these drivers on domain boundary conditions. 2) Describe temporal and spatial variability in physical, chemical, geological and biological, and to evaluate how they are affected by variations in river inflow and other boundary conditions. 3) Characterize the responses of three dominant habitats in the domain to pulses and presses in salinity and inundation. 4) Describe patterns of habitat provisioning and C sequestration and export in the GCE domain, and to evaluate how these might be affected by changes in salinity and inundation. These efforts will be synthesized into a synoptic understanding of both biotic and ecosystem responses to variations in salinity and inundation driven by climate change and human activities, which will be used to assess thresholds between habitats and the potential for state changes in the domain. 6. Funding Source: NSF OCE 1237140 B. Sub-project Description 1. Site Description a. Geographic Location: GCE1 -- Eulonia, Georgia, USA GCE2 -- Four Mile Island, Georgia, USA GCE3 -- North Sapelo, Sapelo Island, Georgia, USA GCE4 -- Meridian, Georgia, USA GCE5 -- Folly River, Georgia, USA GCE6 -- Dean Creek, Sapelo Island, Georgia, USA GCE7 -- Carrs Island, Georgia, USA GCE8 -- Alligator Creek, Georgia, USA GCE9 -- Rockdedundy Island, Georgia, USA GCE10 -- Hunt Camp, Sapelo Island, Georgia, USA Coordinates: GCE1 -- NW: 081 25 42.53 W, 31 32 48.30 N NE: 081 24 38.64 W, 31 32 48.30 N SE: 081 24 38.64 W, 31 32 02.27 N SW: 081 25 42.53 W, 31 32 02.27 N GCE2 -- NW: 081 19 08.26 W, 31 33 09.19 N NE: 081 17 34.24 W, 31 33 09.19 N SE: 081 17 34.24 W, 31 32 00.97 N SW: 081 19 08.26 W, 31 32 00.97 N GCE3 -- NW: 081 13 59.70 W, 31 32 48.72 N NE: 081 11 44.38 W, 31 32 48.72 N SE: 081 11 44.38 W, 31 30 54.68 N SW: 081 13 59.70 W, 31 30 54.68 N GCE4 -- NW: 081 22 14.71 W, 31 27 48.72 N NE: 081 21 26.12 W, 31 27 48.72 N SE: 081 21 26.12 W, 31 26 54.31 N SW: 081 22 14.71 W, 31 26 54.31 N GCE5 -- NW: 081 21 15.89 W, 31 26 33.14 N NE: 081 19 37.92 W, 31 26 33.14 N SE: 081 19 37.92 W, 31 25 03.50 N SW: 081 21 15.89 W, 31 25 03.50 N GCE6 -- NW: 081 17 58.28 W, 31 23 38.66 N NE: 081 15 51.76 W, 31 23 38.66 N SE: 081 15 51.76 W, 31 22 15.61 N SW: 081 17 58.28 W, 31 22 15.61 N GCE7 -- NW: 081 29 36.59 W, 31 20 55.59 N NE: 081 28 33.24 W, 31 20 55.59 N SE: 081 28 33.24 W, 31 20 03.71 N SW: 081 29 36.59 W, 31 20 03.71 N GCE8 -- NW: 081 25 34.58 W, 31 19 04.11 N NE: 081 24 38.28 W, 31 19 04.11 N SE: 081 24 38.28 W, 31 18 14.63 N SW: 081 25 34.58 W, 31 18 14.63 N GCE9 -- NW: 081 20 48.23 W, 31 21 29.31 N NE: 081 19 35.38 W, 31 21 29.31 N SE: 081 19 35.38 W, 31 20 21.02 N SW: 081 20 48.23 W, 31 20 21.02 N GCE10 -- NW: 081 17 43.82 W, 31 29 49.29 N NE: 081 15 32.07 W, 31 29 49.29 N SE: 081 15 32.07 W, 31 27 44.35 N SW: 081 17 43.82 W, 31 27 44.35 N b. Physiographic Region: GCE1 -- Lower coastal plain GCE2 -- Barrier island GCE3 -- Barrier island GCE4 -- Lower coastal plain GCE5 -- Barrier island GCE6 -- Barrier island GCE7 -- Lower coastal plain GCE8 -- Lower coastal plain GCE9 -- Barrier island GCE10 -- Barrier island c. Landform Components: GCE1 -- Intertidal salt marsh bordering maritime forest GCE2 -- Intertidal salt marsh GCE3 -- Intertidal salt marsh, mud flat, and maritime forest GCE4 -- Intertidal salt marsh bordering maritime forest GCE5 -- Intertidal salt marsh GCE6 -- Intertidal salt marsh, sand beach, maritime forest GCE7 -- Freshwater tidal marsh, devegetated fields GCE8 -- Brackish tidal marsh GCE9 -- Intertidal salt marsh GCE10 -- Intertidal salt marsh bordering maritime forest d. Hydrographic Characteristics: GCE1 -- Site contains the upper reaches of the Sapelo River, and is subject to 2-3m semi-diurnal tides GCE2 -- Site contains the Sapelo River and associated tidal creeks, and is subject to 2-3m semi-diurnal tides GCE3 -- Site includes Sapelo Sound and portions of Blackbeard Creek, and is subject to 2-3m semi-diurnal tides GCE4 -- Site includes Hudson Creek and is subject to 2-3m semi-diurnal tides GCE5 -- Site contains the Folly River and borders Doboy Sound, and is subject to 2-3m semi-diurnal tides GCE6 -- Site contains Dean Creek and borders Doboy Sound, and is subject to 2-3m semi-diurnal tides GCE7 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE8 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE9 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE10 -- Site borders the Mud River and contains tidal creeks and the upper reach of the Duplin River, and is subject to 2-3m semi-diurnal tides e. Topographic Attributes: GCE1 -- Flat, with elevations ranging from 0-3m above mean low tide GCE2 -- Flat, with elevations ranging from 0-3m above mean low tide GCE3 -- Flat, with elevations ranging from 0-3m above mean low tide GCE4 -- Flat, with elevations ranging from 0-3m above mean low tide GCE5 -- Flat, with elevations ranging from 0-3m above mean low tide GCE6 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9 -- Flat, with elevations ranging from 0-3m above mean low tide GCE10 -- Flat, with elevations ranging from 0-3m above mean low tide f. Geology, Lithology and Soils: GCE1 -- unspecified GCE2 -- unspecified GCE3 -- unspecified GCE4 -- unspecified GCE5 -- unspecified GCE6 -- unspecified GCE7 -- unspecified GCE8 -- unspecified GCE9 -- unspecified GCE10 -- unspecified g. Vegetation Communities: GCE1 -- Vegetation is 3/4 Juncus and 1/4 Spartina alterniflora, and upland area is heavily forested. GCE2 -- Spartina alterniflora all tall or medium. GCE3 -- Short and tall Spartina alterniflora, very small amounts of Juncus. GCE4 -- Vegetation is 1/4 Juncus, 3/4 medium and tall Spartina alterniflora. GCE5 -- Dominated by short and medium Spartina alterniflora, with areas of taller S. alterniflora near several small creeks. GCE6 -- Vegetation is mostly short and tall Spartina alterniflora, with small amounts of Juncus and Borrichia. GCE7 -- dominated by Zizaniopsis GCE8 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE9 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE10 -- Vegetation mostly tall and medium Spartina alterniflora, with some Juncus present. Upland heavily forested. h. History of Land Use and Disturbance: GCE1 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes. Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 16, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C4, C5, C6, C7, C8. The following creekbank plots are on creekbank areas that are collapsing: C5, C6, C8. No disturbance by animal activity was observed and no plots were replaced. Oct 18, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C5, C6, C7 and C8. No disturbance by wrack or wildlife activity was observed, and no plots were replaced. Oct 25, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C7, C8. No disturbance by wrack or wildlife activity was observed, and no plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C5, C6. The following plots are on creekbank areas that are collapsing: C18. No disturbance by wrack or wildlife activity was observed, and no plots were replaced. Oct 16, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C2, C16. No disturbance by wrack or wildlife activity was observed, and no plots were replaced. Oct 22, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C3, C15. The following plots were disturbed by wrack or wildlife activity: C17, C18, C25. The following plots are on creekbank areas that are collapsing: C18. No plots were replaced. Oct 27, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C25, C26. The following plots were disturbed by wrack: C17, C18, C36. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 16, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C7. No plots were disturbed or lost, and none were replaced. Oct 19, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C4, C17, C18, C36. The following plots are on creekbank areas that are collapsing: C4, C12, C18, C36. No plots were disturbed by wildlife and none were lost and replaced. Oct 25, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C36 (now C46), C17 (now C27), C18 (now C28). Oct 13, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed due to creekbank: C27, C36. No plots were disturbed by wrack or wildlife activity, and none were replaced. Oct 16, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C27. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C25 (replaced by C35), C26 (replaced by C36). Oct 17, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was noted; however, plots C35, C36 and C28 were renumbered as C45, C46 and C38, but in the same location for unspecified reasons. Oct 20, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C4, C46, C27, C38. The following plots are on creekbank areas that are collapsing (slumping): C4, C45, C27, C38. No plots were disturbed by wildlife. GCE2 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes. Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. Plot C6 was disturbed by wrack and Plots C3 and C4 were disturbed by creekbank slumping. Not plots were lost and none were replaced. Oct 18, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C4, C5, C6. The following creekbank plots are on creekbank areas that are collapsing: C2, C6. The following plots were lost due to creekbank erosion or catastrophic wrack disturbance: C1 (replaced with C11). No disturbance by animal activity was observed. Oct 19, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C2. No disturbance by wrack or wildlife activity was observed, and no plots were replaced. Oct 22, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C4, C6, C8. No disturbance by wildlife activity was observed, and no plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C2, C4. No disturbance by wrack or wildlife activity was observed, no plots were lost due to creekbank erosion, and no plots were replaced. Oct 17, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C12, C4, C6. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C2. The following plots were lost for unknown reasons: C8. No plots were disturbed by wildlife, and no plots were replaced. Oct 23, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C4, C12, C13, C18. The following plots were disturbed by wrack or wildlife activity: C6, C7, C11, C22, C23. The following plots are on creekbank areas that are collapsing: C18. No plots were replaced. Oct 28, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C22, C28. The following plots were disturbed by wrack: none. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 15, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 19, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C5, C7, C11, C38. The following plots were lost due to creekbank erosion or catastrophic wrack disturbance: C14, C23 (replaced with C24 and C33, resp.). No plots were disturbed by wrack or wildlife. Oct 25, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C7. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C11 (now C21), C38 (now C48) Oct 13, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by creek bank erosion adjacent to the plot: C17, C24, C42. The following plot was disturbed by wrack: M4. No plots were lost or replaced. Oct 16, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C21 (replaced with C31), C5 (replaced with C15), C17 (replaced with 27). Oct 16, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance or catastrophic wildlife activity: C31, C27 (replaced with C41, C37, resp). Oct 22, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C6. The following plots are on creekbank areas that are collapsing (slumping): C41, C42, C33, C24, C15, C48. No plots were disturbed by wildlife and none were lost and replaced. GCE3 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes. Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 20, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C4, C5, C6, C7, C8. The following plots were disturbed by wildlife (some have no shoots): M2, M5, M6, M7, M8 (snails). The following creekbank plots are on creekbank areas that are collapsing: C8. No plots were replaced. Oct 19, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C3, C4. The following plots were disturbed by wildlife (some have no shoots): M5, M6. The following creekbank plots are on creekbank areas that are collapsing: C8. The following plots were disturbed by marsh dieback: M7. No plots were lost due to creekbank erosion or catastrophic wrack inundation, and not plots were replaced. Oct 24, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C2, C3, C4, C5, C6, C7. The following plots were disturbed by wildlife (some have no shoots): M5, M7. No plots were lost due to creekbank erosion or catastrophic wrack inundation, and not plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance by wrack or wildlife activity was observed, no plots were lost due to creekbank erosion, and no plots were replaced. Oct 15, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C2, C3, C4, C5, C6 (plot C3 has no shoots). The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C6. No plots were disturbed by wildlife, and no plots were replaced. Oct 24, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack or wildlife activity: C1, C2, C3, C4. No plots were lost and none were replaced. Oct 26, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: C1, C2, C3. The following plots were distrurbed by wildlife (some may have no shoots): M5. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 17, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 20, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 27, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed and none were replaced. Oct 14, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed and none were replaced, but the following plots were observed to be too far from the creek bank and may be repositioned in the future: C7, C8. A new creek bank tributary is also forming near C5. Oct 18, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C4. The following plots were disturbed by wildlife: M6. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C5 (replaced with C15), C17 (replaced with 27). Oct 18, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C17. Not plots were lost and none were replaced. Oct 25, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C11. The following plots are on creekbank areas that are collapsing (slumping): C11, C12, C14, C28. The following plots were lost due to terminal slumping of the creekbank: C15, C17 (replaced with C25, C27). No plots were disturbed by wildlife and none were lost and replaced. GCE4 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes. Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 18, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C4. The following plots were disturbed by wildlife (some have no shoots): M6, M8 (snails). No plots were disturbed by creekbank erosion or replaced. Oct 18, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C5, C8. No disturbance by wrack or wildlife activity were observed, and no plots were replaced. Oct 25, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C4. The following creekbank plots are on creekbank areas that are collapsing: C6. No plots were distrurbed by wildlife and no plots were lost or replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C6. No disturbance by wrack or wildlife activity was observed, no plots were lost due to creekbank erosion, and no plots were replaced. Oct 16, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C2, C3, C16. No plots were lost or disturbed by wildlife, and none were replaced. Oct 22, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C5, C7, C16. The following plots were disturbed by wrack or wildlife activity: C15, C26, M1, M3. No plots were replaced. Oct 27, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C2. The following plots were disturbed by wrack: none. The following plots were distrurbed by wildlife (some may have no shoots): M3 (no shoots). The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 16, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife: M3 (snails). No plots were disturbed by wrack or were on creekbank areas that are collapsing, and no plots were replaced. Oct 21, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance or catastrophic wildlife activity: C26 (replaced with C36). No plots were disturbed by wrack or wildlife or are on creekbank areas that are collapsing. Oct 25, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C3, C15. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C36 (now C46). Oct 13, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed and none were replaced, but C25 was slightly reposition due to nearby creekbank erosion. Oct 16, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed and none were replaced, but C25 was slightly reposition due to nearby creekbank erosion. Oct 17, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was noted, and not plots were replaced. Oct 20, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing (slumping): C3, C4, C5, C6. The following plots were lost due to terminal slumping of the creekbank: C1 (replaced with C11). No plots were disturbed by wildlife. GCE5 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes. Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 15, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C6, C7. No disturbance by wrack inundation or animal activity was observed, and no plots were replaced. Oct 18, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C7. No disturbance by wrack or wildlife activity were observed, and no plots were replaced. Oct 23, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C5. No plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C7, C8. No plots were distrurbed by wildlife, none were lost due to creekbank erosion, and none were replaced. Oct 17, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C2. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C6. No plots were disturbed by wildlife and none were replaced. Oct 21, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack or wildlife activity: C2, C4, C5, M2. No plots were lost and none were replaced. Oct 28, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: C3, C5. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 15, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C3. No plots were disturbed by wildlife and no plots were lost and replaced. Oct 19, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C5. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C3 (replaced with C13). No plots were disturbed by wrack or wildlife. Oct 25, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C7, C8. The following plots are on sections of creek bank that are collapsing: C5. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C3 (now C13). Oct 13, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plot was disturbed by nearby creekbank erosion: C13. The following plots were disturbed by wrack: C4, C5. Also, two missing markers were replaced at M5. Oct 15, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C13 (replaced with C23). Note that C8 was relabeled as C18 for unspecified reasons. Oct 16, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C5. The following plots were lost due to creekbank slumping: C23 (replaced with C33). Oct 21, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C2, C5. The following plots are on creekbank areas that are collapsing (slumping): C2, C5, C16, C7. No plots were disturbed by wildlife or lost and replaced. GCE6 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to catastrophic disturbance and replaced with new plots as indicated: zone 1, plot 3 (not replaced). Oct 19, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C1. The following plots were disturbed by wildlife (some have no shoots): M6, M7, M8 (snails). The following creekbank plots are on creekbank areas that are collapsing: C4, C5. No plots were replaced. Oct 17, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife (some have no shoots): M8. The following creekbank plots are on creekbank areas that are collapsing: C5. The following plots were lost due to creekbank erosion or catastrophic wrack inundation and were replaced: C2, C4 (replaced with C12, C14). Oct 22, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C12, C23, C5, C6, C8. The following plots were disturbed by wildlife (some have no shoots): M8. No plots were lost due to creekbank erosion, and none were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C5, C12. The following plots were disturbed by wildlife: M8. No plots were lost due to creekbank erosion, and none were replaced. Oct 15, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C23, C6, C7 (C1, C23 have no plants). The following plots were disturbed by wildlife (some have no shoots): M8. The following creekbank plots are on creekbank areas that are collapsing: C12, C14, C5. No plots were lost and none were replaced. Oct 23, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C5, C14, C22. The following plots were disturbed by wrack or wildlife activity: C15, C16, C23, M8. No plots were replaced. Oct 26, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C24. The following plots were disturbed by wrack: C23. The following plots were distrurbed by wildlife (some may have no shoots): M8 (no shoots). The following plots are on creekbank areas that are collapsing: C22, C23. No plots were replaced. Oct 16, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C22, C23. No other plots were disturbed by wildlife or wrack, and none were replaced. Oct 20, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C6. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C32 (replaced with C42). No plots were disturbed by wildlife or are on creekbank areas that are collapsing. Oct 25, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are located on sections of creek bank that are collapsing: C6, C33. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C15 (now C25). Oct 15, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C6, C8, C33, C34. No plots were disturbed by creekbank erosion or wildlife, but no living plants were observed in C34 and M5 is now in an apparent die-back zone. Oct 16, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C15 (replaced with C25), C16 (replaced with C26), C8 (replaced with 18). Oct 18, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was noted, and no plots were lost; however, plots C33, C34 and C26 were relabeled as C43, C44 and C36, resp. for unspecified reasons. Oct 15, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: M2. The following plots are on creekbank areas that are collapsing (slumping): C42, C36. The following plots were lost due to terminal slumping of the creekbank: C43, C44, C25 (replaced with C53, C54, C35). No plots were disturbed by wildlife. GCE7 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 17, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 17, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No evidence of plot disturbance was observed, and no plots were replaced. Oct 23, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No evidence of plot disturbance was observed, and no plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were distrurbed by wildlife, none were lost due to creekbank erosion, and none were replaced. Oct 14, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C7. No plots were disturbed by wrack or wildlife, and none were replaced. Oct 20, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were lost or disturbed by wrack or wildlife, and none were replaced. Oct 25, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: none. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 14, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 18, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 24, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C2 (now C12). Oct 12, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed by creekbank erosion, wrack or wildlife, and none were replaced. Oct 14, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C7. No plots were lost and none were replaced. Oct 20, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was noted, and no plots were replaced. Oct 23, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing (slumping): C3, C7. No plots were disturbed by wrack or wildlife and none were lost and replaced. GCE8 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to catastrophic disturbance and replaced with new plots as indicated: zone 1 plots 5, 6, 7, 8 (added new plots 15, 16, 17, 18). New plots were not in exactly the same locations as lost plots, and so have new numbers. Oct 17, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C4. The following plots were disturbed by wildlife (some have no shoots): M2, M3, M4, M7 (pigs). No disturbance due to creekbank collapse was observed, and no plots were replaced. Oct 17, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife (some have no shoots): M2, M4. The following creekbank plots are on creekbank areas that are collapsing: C2. No disturbance by wrack was observed, but plot M8 was merging with the path and was relocated as M18. Oct 23, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife (some have no shoots): M2. The following creekbank plots are on creekbank areas that are collapsing: C2. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: M3. No plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C2, C16. The following plots were disturbed by wildlife: M1, M4. No plots were lost due to creekbank erosion, and none were replaced. Oct 14, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C1, C4, C15, C16, C17, C18. The following plots had no live shoots due to seasonal senescence: M2. No plots were disturbed by wrack or wildlife, and none were replaced. Oct 20, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost for unknown reasons: C2, C11. The following plots were disturbed by wrack or wildlife activity: M1, M2, M7, M13. No plots were replaced. Oct 25, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: C26, M4. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 14, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife: M1, M2 (pigs). No plots were disturbed by wrack or were on creekbank areas that are collapsing, and no plots were lost or replaced. Oct 18, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C26. The following plots were disturbed by wildlife (some may have no shoots): M1, M2, M13 (pigs). The following creekbank plots are on creekbank areas that are collapsing: C12, C14. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C27, C28 (replaced with C37, C38 resp.). Oct 24, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on sections of creek bank that are collapsing: C25. The following plots were disturbed by wildlife and may have no shoots: M2, M13, M18. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: M1 (now M11). Oct 12, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife: M1, M2, M6, M7, M18. The following plot was lost due to creekbank erosion: C21 (replaced by C31). Also, no living plants were observed in plots M1, M2. Oct 14, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife (some may have no shoots): M1, M2, M13 (pigs). The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C25 (replaced with C35). Oct 21, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was recorded, but plots C35, M1, M2 and M13 were renumbered as C45, M11, M12 and M23 for unspecified reasons. Oct 23, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C3. The following plots are on creekbank areas that are collapsing (slumping): C14. No plots were disturbed by wildlife and none were lost and replaced. GCE9 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes. Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to catastrophic disturbance and replaced with new plots as indicated: zone 1, plot 4 (added new plot 14). New plots were not in exactly the same locations as lost plots, and so have new numbers. Oct 17, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C5, C6, C8. The following creekbank plots are on creekbank areas that are collapsing: C1, C6. The following plots were lost due to creekbank erosion or catastrophic wrack disturbance: C3 (replaced with C13). No disturbance by wildlife activity was observed. Oct 18, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C1, C2, C6, C13. The following creekbank plots are on creekbank areas that are collapsing: C1, C2, C6. The following plots were lost due to creekbank erosion or catastrophic wrack inundation and were replaced: C5, C7, C8 (replaced with C15, C17, C18). No disturbance by wildlife activity was observed. Oct 23, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C13, C14, C6. No disturbance by wildlife activity was observed, and no plots were lost or replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C2, C18. No plots were distrurbed by wildlife, none were lost due to creekbank erosion, and none were replaced. Oct 14, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C14. No plots were disturbed by wildlife or lost, and none were replaced. Oct 21, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack or wildlife activity: C1, C2, C13. No plots were lost and none were replaced. Oct 25, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: C2. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: C1, C13, C16. No plots were replaced. Oct 15, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C1, C13. The following plots were disturbed by wrack: C16. No plots were otherwise disturbed by wildlife or are on creekbank areas that are collapsing and none were replaced. Oct 21, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C16. The following plots are on creekbank areas that are collapsing: C16, C23. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C2, C11, C14 (replaced with C12, C21 and C24, resp.). No plots were disturbed by wildlife. Oct 24, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C24. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C16 (now C26), C23 (now C32). Oct 12, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed by creekbank erosion, wrack or wildlife, and none were replaced. Oct 15, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C18. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C21 (replaced with C31), C33 (replaced with C43). Oct 15, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were replaced. Oct 21, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were replaced. GCE10 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 20, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C1, C2, C3, C4, C5, C6, C8. The following plots were disturbed by wildlife (some have no shoots): M5 (snails). No disturbance by creekbank erosion or collapse was observed, and no plots were replaced. Oct 19, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C3, M1. The following plots were disturbed by wildlife (some have no shoots): M5. The following creekbank plots are on creekbank areas that are collapsing: C2. No plots were replaced. Oct 22, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C7. No disturbance by wildlife was observed, and no plots were lost or replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were distrurbed by wildlife, none were lost due to creekbank erosion, and none were replaced. Oct 15, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. Note that a new zone (zone 3) was added at site GCE10 in 2005. This is a juncus zone in the high marsh. Oct 24, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack or wildlife activity: C1, C2, C3, C4, C8, M1, M2. The following plots are on creekbank areas that are collapsing: C13. No plots were lost and none were replaced. Oct 26, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: none. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 17, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C3. No plots were disturbed by wildlife, and none are on creekbank areas that are collapsing or were replaced. Oct 20, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 26, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed and none were replaced. Oct 14, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C6, C7. The following plots were repositioned due to nearby creekbank erosion: C12, C13. No plots were lost and none were replaced. Oct 13, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed, and none were lost and replaced. Oct 18, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1, C12, C13, C5. No plots were lost and none were replaced. Oct 24, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing (slumping): C1. No plots were disturbed by wrack or wildlife and none were lost and replaced. i. Climate: Climate summary for Sapelo Island, Georgia, based on NWS data from 1980-2010: Daily-aggregated Values: Mean (sample standard deviation) mean air temperature: 20.09°C (7.28°C) minimum air temperature: 15.02°C (7.96°C) maximum air temperature: 24.82°C (6.98°C) total precipitation: 3.26mm (10.3mm) Yearly-aggregated Daily Values: Mean (sample standard deviation) total precipitation (1980-2010): 1124mm (266mm) 2. Experimental or Sampling Design a. Design Characteristics: This study represents a regular component of the population monitoring program of the GCE-LTER. It was designed to document abundance and spatial distribution of common infaunal and epifaunal molluscs and track their changes over time at each of the ten intertidal marsh monitoring sites within the GCE-LTER domain. All molluscs within randomly placed, small quadrats at four plots in the mid and creekbank marshes at each of the permanent monitoring sites were collected by hand. This design resulted in four replicate samples per zone (n = 4) at each site (n = 8 per site). Collections were made by different teams of trained individuals (staff and volunteers). Molluscs were returned to the lab, preserved and enumerated. b. Permanent Plots: Samples were taken within 3 meters of the GCE permanent monitoring plots, which were established in the marsh areas at each GCE sampling site in October, 2000. Each site was divided into two nominal zones -- creek bank and mid-marsh -- and eight plots were randomly located in each zone and marked with stakes. Sites 9 and 10 have a high marsh Juncus zone which was also sampled in the same manner as creek bank and mid-marsh plots. c. Data Collection Duration and Frequency: Samples were taken within 3 meters of the GCE permanent monitoring plots, which were established in the marsh areas at each GCE sampling site in October, 2000. Each site was divided into two nominal zones -- creekbank and mid-marsh -- and eight plots were randomly located in each zone and marked with stakes. Beginning of Observations: Oct 20, 2015 End of Observations: Oct 28, 2015 3. Research Methods a. Field and Laboratory Methods: Method 1: Mollusc Collection -- A quadrat device, constructed of treated, 1" X 3/4" slats, drilled and joined with bolts and wing nuts, was designed to enclose selectable areas of 0.0625, 0.25 or 0.5 m^2. The quadrat size used for each sample may have varied between plots, zones, and sites and was dependent on apparent density of molluscs (particularly Littoraria) in the immediate area. In high density areas, smaller quadrats were used and vice versa. Quadrat selection was guided by the need to balance accuracy of abundance estimates, prevention of excessive removal of fauna and ensurance that field sampling was kept to a reasonable amount of time. The quadrat was placed around the bases of the plants in the selected sampling area. Snails are collected first, from the standing plants. Collection started at the tops of the plants and proceeded downward to the marsh surface. Particular attention was given to enrolled, scenescing leaves, when present, as new recruits and smaller species were often concentrated there. After the plants had been inspected, the marsh surface was examined for snails and signs of infaunal bivalves. After all epifaunal molluscs were removed, the infaunal bivalves were dug from the sediment. This often required feeling (centimeter by centimeter) along the marsh surface and probing down inside large crab holes to make sure all individuals were collected. All molluscs were placed in pre-labeled plastic bags and transported back to the lab. The molluscs were washed free of sediment over a sieve (< 500 micron-mesh), fixed with ethanol and ultimately transferred to and preserved in 70-95% ethanol. Missing values were recorded on data sheets when observations could not be made due to problems locating plots, loss of plots (creek bank erosion, trampling), logistical problems accessing plots, tidal inundation or other factors. Method 2: Density Estimation -- Density Estimation: Individuals were identified to the lowest practicable taxonomic unit and the number of individuals of each species was determined. The identity of small individuals was confirmed with a stereomicroscope. Per meter square density for each species was determined by dividing total count data for a sample by the fractional quadrat size used for the sample. b. Protocols: Method 1: none Method 2: none c. Instrumentation: Method 1: none Method 2: none d. Taxonomy and Systematics: Method 1: Participants were trained to recognize mollusc species in the field. Final species identifications were made when specimens were sorted and counted in the lab. Most species were common and easily recognizable. Useful references for marsh species and molluscs in general are: 1) Heard, R.W. 1982. Guide to Common Tidal Marsh Invertebrates of the Northeastern Gulf of Mexico. Mississippi Alabama Sea Grant Consortium, MASGP-79-004. 82 pp. and 2) Abbott, R.T. 1974. American Seashells. Van Nostrand Reinhold Co., New York, Second Edition. 663 pp. Method 2: not applicable e. Speclies List: f. Permit History: Method 1: not applicable Method 2: not applicable 4. Project Personnel a. Personnel: 1: Steven C. Pennings 2: Merryl Alber 3: Jacob Shalack 4: Timothy G. Montgomery 5: Sean Sharp b. Affiliations: 1: University of Houston, Houston, Texas 2: University of Georgia, Athens, Georgia 3: University of Georgia Marine Institute, Sapelo Island, Georgia 4: University of Georgia, Sapelo Island, Georgia 5: University of Florida, Gainesville, Florida III. Data Set Status and Accessibility A. Status 1. Latest Update: 23-Feb-2018 2. Latest Archive Date: 07-Feb-2018 3. Latest Metadata Update: 23-Feb-2018 4. Data Verification Status: in review B. Accessibility 1. Storage Location and Medium: Stored at GCE-LTER Data Management Office Dept. of Marine Sciences Univ. of Georgia Athens, GA 30602-3636 USA on media: electronic data download (WWW) or compact disk 2. Contact Person: Name: Wade M. Sheldon, Jr. Address: Dept. of Marine Sciences University of Georgia Athens, Georgia 30602-3636 Country: USA Email: sheldon@uga.edu 3. Copyright Restrictions: not copyrighted 4. Restrictions: This information is licensed under a Creative Commons Attribution 4.0 International License (see: https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) has an ethical obligation to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. a. Release Date: Affiliates: Mar 15, 2017, Public: Nov 01, 2016 b. Citation: Data provided by the Georgia Coastal Ecosystems Long Term Ecological Research Project, supported by funds from NSF OCE 1237140 (data set INV-GCEM-1607) c. Disclaimer: The user assumes all responsibility for errors in judgement based on interpretation of data and analyses presented in this data set. 5. Costs: free electronic data download via WWW, distribution on CD may be subject to nominal processing and handling fee IV. Data Structural Descriptors A. Data Set File 1. File Name: INV-GCEM-1607_1_0.CSV 2. Size: 704 records 3. File Format: ASCII text (comma-separated value format) 3a. Delimiters: single comma 4. Header Information: 5 lines of ASCII text 5. Alphanumeric Attributes: 6. Quality Control Flag Codes: Q = questionable value, I = invalid value, E = estimated value 7. Authentication Procedures: 8. Calculations: 9. Processing History: Software version: GCE Data Toolbox Version 3.9.7b (17-Jul-2017) Data structure version: GCE Data Structure 1.1 (29-Mar-2001) Original data file processed: INV-GCEM-1607.txt (792 records) Data processing history: 07-Feb-2018: new GCE Data Structure 1.1 created ('newstruct') 07-Feb-2018: automatically assigned numerical types and precisions for columns Year, Month, Day, Site, Zone, Plot, Mollusc_Count, Quadrat_Area and Mollusc_Density; assigned data types of columns Year, Month, Day, Site, Zone, Plot, Mollusc_Count and Mollusc_Density to 'd' (integer); assigned data type of column Quadrat_Area to 'f' (floating-point) ('assign_numtype') 07-Feb-2018: 792 rows imported from ASCII data file 'INV-GCEM-1607.txt' ('imp_ascii') 07-Feb-2018: 83 metadata fields in file header parsed ('parse_header') 07-Feb-2018: data structure validated ('gce_valid') 07-Feb-2018: Descriptions of columns Year, Month, Day, Site, Zone, Plot, Species, Mollusc_Count, Quadrat_Area and Mollusc_Density edited ('ui_editor') 07-Feb-2018: added column 'Location' at position 7 ('addcol') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB33' to 'GCE2_CB43', changed record 17 from 'GCE3_CB11' to 'GCE3_CB21', changed record 18 from 'GCE3_CB13' to 'GCE3_CB23', changed record 19 from 'GCE3_CB16' to 'GCE3_CB26', changed record 20 from 'GCE3_CB28' to 'GCE3_CB38', changed record 35 from 'GCE5_CB16' to 'GCE5_CB26', changed record 42 from 'GCE6_CB53' to 'GCE6_CB63', changed record 44 from 'GCE6_CB18' to 'GCE6_CB28', changed record 60 from 'GCE8_CB38' to 'GCE8_CB48', changed record 65 from 'GCE9_CB31' to 'GCE9_CB41', changed record 66 from 'GCE9_CB43' to 'GCE9_CB53', changed record 98 from 'GCE2_CB33' to 'GCE2_CB43', changed record 105 from 'GCE3_CB11' to 'GCE3_CB21', changed record 106 from 'GCE3_CB13' to 'GCE3_CB23', changed record 107 from 'GCE3_CB16' to 'GCE3_CB26', changed record 108 from 'GCE3_CB28' to 'GCE3_CB38', changed record 123 from 'GCE5_CB16' to 'GCE5_CB26', changed record 130 from 'GCE6_CB53' to 'GCE6_CB63', changed record 132 from 'GCE6_CB18' to 'GCE6_CB28', changed record 148 from 'GCE8_CB38' to 'GCE8_CB48', changed record 153 from 'GCE9_CB31' to 'GCE9_CB41', changed record 154 from 'GCE9_CB43' to 'GCE9_CB53', changed record 186 from 'GCE2_CB33' to 'GCE2_CB43', changed record 193 from 'GCE3_CB11' to 'GCE3_CB21', changed record 194 from 'GCE3_CB13' to 'GCE3_CB23', changed record 195 from 'GCE3_CB16' to 'GCE3_CB26', changed record 196 from 'GCE3_CB28' to 'GCE3_CB38', changed record 211 from 'GCE5_CB16' to 'GCE5_CB26', changed record 218 from 'GCE6_CB53' to 'GCE6_CB63', changed record 220 from 'GCE6_CB18' to 'GCE6_CB28', changed record 236 from 'GCE8_CB38' to 'GCE8_CB48', changed record 241 from 'GCE9_CB31' to 'GCE9_CB41', changed record 242 from 'GCE9_CB43' to 'GCE9_CB53', changed record 274 from 'GCE2_CB33' to 'GCE2_CB43', changed record 281 from 'GCE3_CB11' to 'GCE3_CB21', changed record 282 from 'GCE3_CB13' to 'GCE3_CB23', changed record 283 from 'GCE3_CB16' to 'GCE3_CB26', changed record 284 from 'GCE3_CB28' to 'GCE3_CB38', changed record 299 from 'GCE5_CB16' to 'GCE5_CB26', changed record 306 from 'GCE6_CB53' to 'GCE6_CB63', changed record 308 from 'GCE6_CB18' to 'GCE6_CB28', changed record 324 from 'GCE8_CB38' to 'GCE8_CB48', changed record 329 from 'GCE9_CB31' to 'GCE9_CB41', changed record 330 from 'GCE9_CB43' to 'GCE9_CB53', changed record 362 from 'GCE2_CB33' to 'GCE2_CB43', changed record 369 from 'GCE3_CB11' to 'GCE3_CB21', changed record 370 from 'GCE3_CB13' to 'GCE3_CB23', changed record 371 from 'GCE3_CB16' to 'GCE3_CB26', changed record 372 from 'GCE3_CB28' to 'GCE3_CB38', changed record 387 from 'GCE5_CB16' to 'GCE5_CB26', changed record 394 from 'GCE6_CB53' to 'GCE6_CB63', changed record 396 from 'GCE6_CB18' to 'GCE6_CB28', changed record 412 from 'GCE8_CB38' to 'GCE8_CB48', changed record 417 from 'GCE9_CB31' to 'GCE9_CB41', changed record 418 from 'GCE9_CB43' to 'GCE9_CB53', changed record 450 from 'GCE2_CB33' to 'GCE2_CB43', changed record 457 from 'GCE3_CB11' to 'GCE3_CB21', changed record 458 from 'GCE3_CB13' to 'GCE3_CB23', changed record 459 from 'GCE3_CB16' to 'GCE3_CB26', changed record 460 from 'GCE3_CB28' to 'GCE3_CB38', changed record 475 from 'GCE5_CB16' to 'GCE5_CB26', changed record 482 from 'GCE6_CB53' to 'GCE6_CB63', changed record 484 from 'GCE6_CB18' to 'GCE6_CB28', changed record 500 from 'GCE8_CB38' to 'GCE8_CB48', changed record 505 from 'GCE9_CB31' to 'GCE9_CB41', changed record 506 from 'GCE9_CB43' to 'GCE9_CB53', changed record 538 from 'GCE2_CB33' to 'GCE2_CB43', changed record 545 from 'GCE3_CB11' to 'GCE3_CB21', changed record 546 from 'GCE3_CB13' to 'GCE3_CB23', changed record 547 from 'GCE3_CB16' to 'GCE3_CB26', changed record 548 from 'GCE3_CB28' to 'GCE3_CB38', changed record 563 from 'GCE5_CB16' to 'GCE5_CB26', changed record 570 from 'GCE6_CB53' to 'GCE6_CB63', changed record 572 from 'GCE6_CB18' to 'GCE6_CB28', changed record 588 from 'GCE8_CB38' to 'GCE8_CB48', changed record 593 from 'GCE9_CB31' to 'GCE9_CB41', changed record 594 from 'GCE9_CB43' to 'GCE9_CB53', changed record 626 from 'GCE2_CB33' to 'GCE2_CB43', changed record 633 from 'GCE3_CB11' to 'GCE3_CB21', changed record 634 from 'GCE3_CB13' to 'GCE3_CB23', changed record 635 from 'GCE3_CB16' to 'GCE3_CB26', changed record 636 from 'GCE3_CB28' to 'GCE3_CB38', changed record 651 from 'GCE5_CB16' to 'GCE5_CB26', changed record 658 from 'GCE6_CB53' to 'GCE6_CB63', changed record 660 from 'GCE6_CB18' to 'GCE6_CB28', changed record 676 from 'GCE8_CB38' to 'GCE8_CB48', changed record 681 from 'GCE9_CB31' to 'GCE9_CB41', changed record 682 from 'GCE9_CB43' to 'GCE9_CB53', changed record 714 from 'GCE2_CB33' to 'GCE2_CB43', changed record 721 from 'GCE3_CB11' to 'GCE3_CB21', changed record 722 from 'GCE3_CB13' to 'GCE3_CB23', changed record 723 from 'GCE3_CB16' to 'GCE3_CB26', changed record 724 from 'GCE3_CB28' to 'GCE3_CB38', changed record 739 from 'GCE5_CB16' to 'GCE5_CB26', changed record 746 from 'GCE6_CB53' to 'GCE6_CB63', changed record 748 from 'GCE6_CB18' to 'GCE6_CB28', changed record 764 from 'GCE8_CB38' to 'GCE8_CB48', changed record 769 from 'GCE9_CB31' to 'GCE9_CB41', changed record 770 from 'GCE9_CB43' to 'GCE9_CB53' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB43' to 'GCE2_CB53', changed record 17 from 'GCE3_CB21' to 'GCE3_CB31', changed record 18 from 'GCE3_CB23' to 'GCE3_CB33', changed record 19 from 'GCE3_CB26' to 'GCE3_CB36', changed record 20 from 'GCE3_CB38' to 'GCE3_CB48', changed record 35 from 'GCE5_CB26' to 'GCE5_CB36', changed record 42 from 'GCE6_CB63' to 'GCE6_CB73', changed record 44 from 'GCE6_CB28' to 'GCE6_CB38', changed record 60 from 'GCE8_CB48' to 'GCE8_CB58', changed record 65 from 'GCE9_CB41' to 'GCE9_CB51', changed record 66 from 'GCE9_CB53' to 'GCE9_CB63', changed record 98 from 'GCE2_CB43' to 'GCE2_CB53', changed record 105 from 'GCE3_CB21' to 'GCE3_CB31', changed record 106 from 'GCE3_CB23' to 'GCE3_CB33', changed record 107 from 'GCE3_CB26' to 'GCE3_CB36', changed record 108 from 'GCE3_CB38' to 'GCE3_CB48', changed record 123 from 'GCE5_CB26' to 'GCE5_CB36', changed record 130 from 'GCE6_CB63' to 'GCE6_CB73', changed record 132 from 'GCE6_CB28' to 'GCE6_CB38', changed record 148 from 'GCE8_CB48' to 'GCE8_CB58', changed record 153 from 'GCE9_CB41' to 'GCE9_CB51', changed record 154 from 'GCE9_CB53' to 'GCE9_CB63', changed record 186 from 'GCE2_CB43' to 'GCE2_CB53', changed record 193 from 'GCE3_CB21' to 'GCE3_CB31', changed record 194 from 'GCE3_CB23' to 'GCE3_CB33', changed record 195 from 'GCE3_CB26' to 'GCE3_CB36', changed record 196 from 'GCE3_CB38' to 'GCE3_CB48', changed record 211 from 'GCE5_CB26' to 'GCE5_CB36', changed record 218 from 'GCE6_CB63' to 'GCE6_CB73', changed record 220 from 'GCE6_CB28' to 'GCE6_CB38', changed record 236 from 'GCE8_CB48' to 'GCE8_CB58', changed record 241 from 'GCE9_CB41' to 'GCE9_CB51', changed record 242 from 'GCE9_CB53' to 'GCE9_CB63', changed record 274 from 'GCE2_CB43' to 'GCE2_CB53', changed record 281 from 'GCE3_CB21' to 'GCE3_CB31', changed record 282 from 'GCE3_CB23' to 'GCE3_CB33', changed record 283 from 'GCE3_CB26' to 'GCE3_CB36', changed record 284 from 'GCE3_CB38' to 'GCE3_CB48', changed record 299 from 'GCE5_CB26' to 'GCE5_CB36', changed record 306 from 'GCE6_CB63' to 'GCE6_CB73', changed record 308 from 'GCE6_CB28' to 'GCE6_CB38', changed record 324 from 'GCE8_CB48' to 'GCE8_CB58', changed record 329 from 'GCE9_CB41' to 'GCE9_CB51', changed record 330 from 'GCE9_CB53' to 'GCE9_CB63', changed record 362 from 'GCE2_CB43' to 'GCE2_CB53', changed record 369 from 'GCE3_CB21' to 'GCE3_CB31', changed record 370 from 'GCE3_CB23' to 'GCE3_CB33', changed record 371 from 'GCE3_CB26' to 'GCE3_CB36', changed record 372 from 'GCE3_CB38' to 'GCE3_CB48', changed record 387 from 'GCE5_CB26' to 'GCE5_CB36', changed record 394 from 'GCE6_CB63' to 'GCE6_CB73', changed record 396 from 'GCE6_CB28' to 'GCE6_CB38', changed record 412 from 'GCE8_CB48' to 'GCE8_CB58', changed record 417 from 'GCE9_CB41' to 'GCE9_CB51', changed record 418 from 'GCE9_CB53' to 'GCE9_CB63', changed record 450 from 'GCE2_CB43' to 'GCE2_CB53', changed record 457 from 'GCE3_CB21' to 'GCE3_CB31', changed record 458 from 'GCE3_CB23' to 'GCE3_CB33', changed record 459 from 'GCE3_CB26' to 'GCE3_CB36', changed record 460 from 'GCE3_CB38' to 'GCE3_CB48', changed record 475 from 'GCE5_CB26' to 'GCE5_CB36', changed record 482 from 'GCE6_CB63' to 'GCE6_CB73', changed record 484 from 'GCE6_CB28' to 'GCE6_CB38', changed record 500 from 'GCE8_CB48' to 'GCE8_CB58', changed record 505 from 'GCE9_CB41' to 'GCE9_CB51', changed record 506 from 'GCE9_CB53' to 'GCE9_CB63', changed record 538 from 'GCE2_CB43' to 'GCE2_CB53', changed record 545 from 'GCE3_CB21' to 'GCE3_CB31', changed record 546 from 'GCE3_CB23' to 'GCE3_CB33', changed record 547 from 'GCE3_CB26' to 'GCE3_CB36', changed record 548 from 'GCE3_CB38' to 'GCE3_CB48', changed record 563 from 'GCE5_CB26' to 'GCE5_CB36', changed record 570 from 'GCE6_CB63' to 'GCE6_CB73', changed record 572 from 'GCE6_CB28' to 'GCE6_CB38', changed record 588 from 'GCE8_CB48' to 'GCE8_CB58', changed record 593 from 'GCE9_CB41' to 'GCE9_CB51', changed record 594 from 'GCE9_CB53' to 'GCE9_CB63', changed record 626 from 'GCE2_CB43' to 'GCE2_CB53', changed record 633 from 'GCE3_CB21' to 'GCE3_CB31', changed record 634 from 'GCE3_CB23' to 'GCE3_CB33', changed record 635 from 'GCE3_CB26' to 'GCE3_CB36', changed record 636 from 'GCE3_CB38' to 'GCE3_CB48', changed record 651 from 'GCE5_CB26' to 'GCE5_CB36', changed record 658 from 'GCE6_CB63' to 'GCE6_CB73', changed record 660 from 'GCE6_CB28' to 'GCE6_CB38', changed record 676 from 'GCE8_CB48' to 'GCE8_CB58', changed record 681 from 'GCE9_CB41' to 'GCE9_CB51', changed record 682 from 'GCE9_CB53' to 'GCE9_CB63', changed record 714 from 'GCE2_CB43' to 'GCE2_CB53', changed record 721 from 'GCE3_CB21' to 'GCE3_CB31', changed record 722 from 'GCE3_CB23' to 'GCE3_CB33', changed record 723 from 'GCE3_CB26' to 'GCE3_CB36', changed record 724 from 'GCE3_CB38' to 'GCE3_CB48', changed record 739 from 'GCE5_CB26' to 'GCE5_CB36', changed record 746 from 'GCE6_CB63' to 'GCE6_CB73', changed record 748 from 'GCE6_CB28' to 'GCE6_CB38', changed record 764 from 'GCE8_CB48' to 'GCE8_CB58', changed record 769 from 'GCE9_CB41' to 'GCE9_CB51', changed record 770 from 'GCE9_CB53' to 'GCE9_CB63' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB53' to 'GCE2_CB63', changed record 17 from 'GCE3_CB31' to 'GCE3_CB41', changed record 18 from 'GCE3_CB33' to 'GCE3_CB43', changed record 19 from 'GCE3_CB36' to 'GCE3_CB46', changed record 20 from 'GCE3_CB48' to 'GCE3_CB58', changed record 35 from 'GCE5_CB36' to 'GCE5_CB46', changed record 42 from 'GCE6_CB73' to 'GCE6_CB83', changed record 44 from 'GCE6_CB38' to 'GCE6_CB48', changed record 60 from 'GCE8_CB58' to 'GCE8_CB68', changed record 65 from 'GCE9_CB51' to 'GCE9_CB61', changed record 66 from 'GCE9_CB63' to 'GCE9_CB73', changed record 98 from 'GCE2_CB53' to 'GCE2_CB63', changed record 105 from 'GCE3_CB31' to 'GCE3_CB41', changed record 106 from 'GCE3_CB33' to 'GCE3_CB43', changed record 107 from 'GCE3_CB36' to 'GCE3_CB46', changed record 108 from 'GCE3_CB48' to 'GCE3_CB58', changed record 123 from 'GCE5_CB36' to 'GCE5_CB46', changed record 130 from 'GCE6_CB73' to 'GCE6_CB83', changed record 132 from 'GCE6_CB38' to 'GCE6_CB48', changed record 148 from 'GCE8_CB58' to 'GCE8_CB68', changed record 153 from 'GCE9_CB51' to 'GCE9_CB61', changed record 154 from 'GCE9_CB63' to 'GCE9_CB73', changed record 186 from 'GCE2_CB53' to 'GCE2_CB63', changed record 193 from 'GCE3_CB31' to 'GCE3_CB41', changed record 194 from 'GCE3_CB33' to 'GCE3_CB43', changed record 195 from 'GCE3_CB36' to 'GCE3_CB46', changed record 196 from 'GCE3_CB48' to 'GCE3_CB58', changed record 211 from 'GCE5_CB36' to 'GCE5_CB46', changed record 218 from 'GCE6_CB73' to 'GCE6_CB83', changed record 220 from 'GCE6_CB38' to 'GCE6_CB48', changed record 236 from 'GCE8_CB58' to 'GCE8_CB68', changed record 241 from 'GCE9_CB51' to 'GCE9_CB61', changed record 242 from 'GCE9_CB63' to 'GCE9_CB73', changed record 274 from 'GCE2_CB53' to 'GCE2_CB63', changed record 281 from 'GCE3_CB31' to 'GCE3_CB41', changed record 282 from 'GCE3_CB33' to 'GCE3_CB43', changed record 283 from 'GCE3_CB36' to 'GCE3_CB46', changed record 284 from 'GCE3_CB48' to 'GCE3_CB58', changed record 299 from 'GCE5_CB36' to 'GCE5_CB46', changed record 306 from 'GCE6_CB73' to 'GCE6_CB83', changed record 308 from 'GCE6_CB38' to 'GCE6_CB48', changed record 324 from 'GCE8_CB58' to 'GCE8_CB68', changed record 329 from 'GCE9_CB51' to 'GCE9_CB61', changed record 330 from 'GCE9_CB63' to 'GCE9_CB73', changed record 362 from 'GCE2_CB53' to 'GCE2_CB63', changed record 369 from 'GCE3_CB31' to 'GCE3_CB41', changed record 370 from 'GCE3_CB33' to 'GCE3_CB43', changed record 371 from 'GCE3_CB36' to 'GCE3_CB46', changed record 372 from 'GCE3_CB48' to 'GCE3_CB58', changed record 387 from 'GCE5_CB36' to 'GCE5_CB46', changed record 394 from 'GCE6_CB73' to 'GCE6_CB83', changed record 396 from 'GCE6_CB38' to 'GCE6_CB48', changed record 412 from 'GCE8_CB58' to 'GCE8_CB68', changed record 417 from 'GCE9_CB51' to 'GCE9_CB61', changed record 418 from 'GCE9_CB63' to 'GCE9_CB73', changed record 450 from 'GCE2_CB53' to 'GCE2_CB63', changed record 457 from 'GCE3_CB31' to 'GCE3_CB41', changed record 458 from 'GCE3_CB33' to 'GCE3_CB43', changed record 459 from 'GCE3_CB36' to 'GCE3_CB46', changed record 460 from 'GCE3_CB48' to 'GCE3_CB58', changed record 475 from 'GCE5_CB36' to 'GCE5_CB46', changed record 482 from 'GCE6_CB73' to 'GCE6_CB83', changed record 484 from 'GCE6_CB38' to 'GCE6_CB48', changed record 500 from 'GCE8_CB58' to 'GCE8_CB68', changed record 505 from 'GCE9_CB51' to 'GCE9_CB61', changed record 506 from 'GCE9_CB63' to 'GCE9_CB73', changed record 538 from 'GCE2_CB53' to 'GCE2_CB63', changed record 545 from 'GCE3_CB31' to 'GCE3_CB41', changed record 546 from 'GCE3_CB33' to 'GCE3_CB43', changed record 547 from 'GCE3_CB36' to 'GCE3_CB46', changed record 548 from 'GCE3_CB48' to 'GCE3_CB58', changed record 563 from 'GCE5_CB36' to 'GCE5_CB46', changed record 570 from 'GCE6_CB73' to 'GCE6_CB83', changed record 572 from 'GCE6_CB38' to 'GCE6_CB48', changed record 588 from 'GCE8_CB58' to 'GCE8_CB68', changed record 593 from 'GCE9_CB51' to 'GCE9_CB61', changed record 594 from 'GCE9_CB63' to 'GCE9_CB73', changed record 626 from 'GCE2_CB53' to 'GCE2_CB63', changed record 633 from 'GCE3_CB31' to 'GCE3_CB41', changed record 634 from 'GCE3_CB33' to 'GCE3_CB43', changed record 635 from 'GCE3_CB36' to 'GCE3_CB46', changed record 636 from 'GCE3_CB48' to 'GCE3_CB58', changed record 651 from 'GCE5_CB36' to 'GCE5_CB46', changed record 658 from 'GCE6_CB73' to 'GCE6_CB83', changed record 660 from 'GCE6_CB38' to 'GCE6_CB48', changed record 676 from 'GCE8_CB58' to 'GCE8_CB68', changed record 681 from 'GCE9_CB51' to 'GCE9_CB61', changed record 682 from 'GCE9_CB63' to 'GCE9_CB73', changed record 714 from 'GCE2_CB53' to 'GCE2_CB63', changed record 721 from 'GCE3_CB31' to 'GCE3_CB41', changed record 722 from 'GCE3_CB33' to 'GCE3_CB43', changed record 723 from 'GCE3_CB36' to 'GCE3_CB46', changed record 724 from 'GCE3_CB48' to 'GCE3_CB58', changed record 739 from 'GCE5_CB36' to 'GCE5_CB46', changed record 746 from 'GCE6_CB73' to 'GCE6_CB83', changed record 748 from 'GCE6_CB38' to 'GCE6_CB48', changed record 764 from 'GCE8_CB58' to 'GCE8_CB68', changed record 769 from 'GCE9_CB51' to 'GCE9_CB61', changed record 770 from 'GCE9_CB63' to 'GCE9_CB73' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB63' to 'GCE2_CB73', changed record 17 from 'GCE3_CB41' to 'GCE3_CB51', changed record 18 from 'GCE3_CB43' to 'GCE3_CB53', changed record 19 from 'GCE3_CB46' to 'GCE3_CB56', changed record 20 from 'GCE3_CB58' to 'GCE3_CB68', changed record 35 from 'GCE5_CB46' to 'GCE5_CB56', changed record 42 from 'GCE6_CB83' to 'GCE6_CB93', changed record 44 from 'GCE6_CB48' to 'GCE6_CB58', changed record 60 from 'GCE8_CB68' to 'GCE8_CB78', changed record 65 from 'GCE9_CB61' to 'GCE9_CB71', changed record 66 from 'GCE9_CB73' to 'GCE9_CB83', changed record 98 from 'GCE2_CB63' to 'GCE2_CB73', changed record 105 from 'GCE3_CB41' to 'GCE3_CB51', changed record 106 from 'GCE3_CB43' to 'GCE3_CB53', changed record 107 from 'GCE3_CB46' to 'GCE3_CB56', changed record 108 from 'GCE3_CB58' to 'GCE3_CB68', changed record 123 from 'GCE5_CB46' to 'GCE5_CB56', changed record 130 from 'GCE6_CB83' to 'GCE6_CB93', changed record 132 from 'GCE6_CB48' to 'GCE6_CB58', changed record 148 from 'GCE8_CB68' to 'GCE8_CB78', changed record 153 from 'GCE9_CB61' to 'GCE9_CB71', changed record 154 from 'GCE9_CB73' to 'GCE9_CB83', changed record 186 from 'GCE2_CB63' to 'GCE2_CB73', changed record 193 from 'GCE3_CB41' to 'GCE3_CB51', changed record 194 from 'GCE3_CB43' to 'GCE3_CB53', changed record 195 from 'GCE3_CB46' to 'GCE3_CB56', changed record 196 from 'GCE3_CB58' to 'GCE3_CB68', changed record 211 from 'GCE5_CB46' to 'GCE5_CB56', changed record 218 from 'GCE6_CB83' to 'GCE6_CB93', changed record 220 from 'GCE6_CB48' to 'GCE6_CB58', changed record 236 from 'GCE8_CB68' to 'GCE8_CB78', changed record 241 from 'GCE9_CB61' to 'GCE9_CB71', changed record 242 from 'GCE9_CB73' to 'GCE9_CB83', changed record 274 from 'GCE2_CB63' to 'GCE2_CB73', changed record 281 from 'GCE3_CB41' to 'GCE3_CB51', changed record 282 from 'GCE3_CB43' to 'GCE3_CB53', changed record 283 from 'GCE3_CB46' to 'GCE3_CB56', changed record 284 from 'GCE3_CB58' to 'GCE3_CB68', changed record 299 from 'GCE5_CB46' to 'GCE5_CB56', changed record 306 from 'GCE6_CB83' to 'GCE6_CB93', changed record 308 from 'GCE6_CB48' to 'GCE6_CB58', changed record 324 from 'GCE8_CB68' to 'GCE8_CB78', changed record 329 from 'GCE9_CB61' to 'GCE9_CB71', changed record 330 from 'GCE9_CB73' to 'GCE9_CB83', changed record 362 from 'GCE2_CB63' to 'GCE2_CB73', changed record 369 from 'GCE3_CB41' to 'GCE3_CB51', changed record 370 from 'GCE3_CB43' to 'GCE3_CB53', changed record 371 from 'GCE3_CB46' to 'GCE3_CB56', changed record 372 from 'GCE3_CB58' to 'GCE3_CB68', changed record 387 from 'GCE5_CB46' to 'GCE5_CB56', changed record 394 from 'GCE6_CB83' to 'GCE6_CB93', changed record 396 from 'GCE6_CB48' to 'GCE6_CB58', changed record 412 from 'GCE8_CB68' to 'GCE8_CB78', changed record 417 from 'GCE9_CB61' to 'GCE9_CB71', changed record 418 from 'GCE9_CB73' to 'GCE9_CB83', changed record 450 from 'GCE2_CB63' to 'GCE2_CB73', changed record 457 from 'GCE3_CB41' to 'GCE3_CB51', changed record 458 from 'GCE3_CB43' to 'GCE3_CB53', changed record 459 from 'GCE3_CB46' to 'GCE3_CB56', changed record 460 from 'GCE3_CB58' to 'GCE3_CB68', changed record 475 from 'GCE5_CB46' to 'GCE5_CB56', changed record 482 from 'GCE6_CB83' to 'GCE6_CB93', changed record 484 from 'GCE6_CB48' to 'GCE6_CB58', changed record 500 from 'GCE8_CB68' to 'GCE8_CB78', changed record 505 from 'GCE9_CB61' to 'GCE9_CB71', changed record 506 from 'GCE9_CB73' to 'GCE9_CB83', changed record 538 from 'GCE2_CB63' to 'GCE2_CB73', changed record 545 from 'GCE3_CB41' to 'GCE3_CB51', changed record 546 from 'GCE3_CB43' to 'GCE3_CB53', changed record 547 from 'GCE3_CB46' to 'GCE3_CB56', changed record 548 from 'GCE3_CB58' to 'GCE3_CB68', changed record 563 from 'GCE5_CB46' to 'GCE5_CB56', changed record 570 from 'GCE6_CB83' to 'GCE6_CB93', changed record 572 from 'GCE6_CB48' to 'GCE6_CB58', changed record 588 from 'GCE8_CB68' to 'GCE8_CB78', changed record 593 from 'GCE9_CB61' to 'GCE9_CB71', changed record 594 from 'GCE9_CB73' to 'GCE9_CB83', changed record 626 from 'GCE2_CB63' to 'GCE2_CB73', changed record 633 from 'GCE3_CB41' to 'GCE3_CB51', changed record 634 from 'GCE3_CB43' to 'GCE3_CB53', changed record 635 from 'GCE3_CB46' to 'GCE3_CB56', changed record 636 from 'GCE3_CB58' to 'GCE3_CB68', changed record 651 from 'GCE5_CB46' to 'GCE5_CB56', changed record 658 from 'GCE6_CB83' to 'GCE6_CB93', changed record 660 from 'GCE6_CB48' to 'GCE6_CB58', changed record 676 from 'GCE8_CB68' to 'GCE8_CB78', changed record 681 from 'GCE9_CB61' to 'GCE9_CB71', changed record 682 from 'GCE9_CB73' to 'GCE9_CB83', changed record 714 from 'GCE2_CB63' to 'GCE2_CB73', changed record 721 from 'GCE3_CB41' to 'GCE3_CB51', changed record 722 from 'GCE3_CB43' to 'GCE3_CB53', changed record 723 from 'GCE3_CB46' to 'GCE3_CB56', changed record 724 from 'GCE3_CB58' to 'GCE3_CB68', changed record 739 from 'GCE5_CB46' to 'GCE5_CB56', changed record 746 from 'GCE6_CB83' to 'GCE6_CB93', changed record 748 from 'GCE6_CB48' to 'GCE6_CB58', changed record 764 from 'GCE8_CB68' to 'GCE8_CB78', changed record 769 from 'GCE9_CB61' to 'GCE9_CB71', changed record 770 from 'GCE9_CB73' to 'GCE9_CB83' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB73' to 'GCE2_CB83', changed record 17 from 'GCE3_CB51' to 'GCE3_CB61', changed record 18 from 'GCE3_CB53' to 'GCE3_CB63', changed record 19 from 'GCE3_CB56' to 'GCE3_CB66', changed record 20 from 'GCE3_CB68' to 'GCE3_CB78', changed record 35 from 'GCE5_CB56' to 'GCE5_CB66', changed record 42 from 'GCE6_CB93' to 'GCE6_CB103', changed record 44 from 'GCE6_CB58' to 'GCE6_CB68', changed record 60 from 'GCE8_CB78' to 'GCE8_CB88', changed record 65 from 'GCE9_CB71' to 'GCE9_CB81', changed record 66 from 'GCE9_CB83' to 'GCE9_CB93', changed record 98 from 'GCE2_CB73' to 'GCE2_CB83', changed record 105 from 'GCE3_CB51' to 'GCE3_CB61', changed record 106 from 'GCE3_CB53' to 'GCE3_CB63', changed record 107 from 'GCE3_CB56' to 'GCE3_CB66', changed record 108 from 'GCE3_CB68' to 'GCE3_CB78', changed record 123 from 'GCE5_CB56' to 'GCE5_CB66', changed record 130 from 'GCE6_CB93' to 'GCE6_CB103', changed record 132 from 'GCE6_CB58' to 'GCE6_CB68', changed record 148 from 'GCE8_CB78' to 'GCE8_CB88', changed record 153 from 'GCE9_CB71' to 'GCE9_CB81', changed record 154 from 'GCE9_CB83' to 'GCE9_CB93', changed record 186 from 'GCE2_CB73' to 'GCE2_CB83', changed record 193 from 'GCE3_CB51' to 'GCE3_CB61', changed record 194 from 'GCE3_CB53' to 'GCE3_CB63', changed record 195 from 'GCE3_CB56' to 'GCE3_CB66', changed record 196 from 'GCE3_CB68' to 'GCE3_CB78', changed record 211 from 'GCE5_CB56' to 'GCE5_CB66', changed record 218 from 'GCE6_CB93' to 'GCE6_CB103', changed record 220 from 'GCE6_CB58' to 'GCE6_CB68', changed record 236 from 'GCE8_CB78' to 'GCE8_CB88', changed record 241 from 'GCE9_CB71' to 'GCE9_CB81', changed record 242 from 'GCE9_CB83' to 'GCE9_CB93', changed record 274 from 'GCE2_CB73' to 'GCE2_CB83', changed record 281 from 'GCE3_CB51' to 'GCE3_CB61', changed record 282 from 'GCE3_CB53' to 'GCE3_CB63', changed record 283 from 'GCE3_CB56' to 'GCE3_CB66', changed record 284 from 'GCE3_CB68' to 'GCE3_CB78', changed record 299 from 'GCE5_CB56' to 'GCE5_CB66', changed record 306 from 'GCE6_CB93' to 'GCE6_CB103', changed record 308 from 'GCE6_CB58' to 'GCE6_CB68', changed record 324 from 'GCE8_CB78' to 'GCE8_CB88', changed record 329 from 'GCE9_CB71' to 'GCE9_CB81', changed record 330 from 'GCE9_CB83' to 'GCE9_CB93', changed record 362 from 'GCE2_CB73' to 'GCE2_CB83', changed record 369 from 'GCE3_CB51' to 'GCE3_CB61', changed record 370 from 'GCE3_CB53' to 'GCE3_CB63', changed record 371 from 'GCE3_CB56' to 'GCE3_CB66', changed record 372 from 'GCE3_CB68' to 'GCE3_CB78', changed record 387 from 'GCE5_CB56' to 'GCE5_CB66', changed record 394 from 'GCE6_CB93' to 'GCE6_CB103', changed record 396 from 'GCE6_CB58' to 'GCE6_CB68', changed record 412 from 'GCE8_CB78' to 'GCE8_CB88', changed record 417 from 'GCE9_CB71' to 'GCE9_CB81', changed record 418 from 'GCE9_CB83' to 'GCE9_CB93', changed record 450 from 'GCE2_CB73' to 'GCE2_CB83', changed record 457 from 'GCE3_CB51' to 'GCE3_CB61', changed record 458 from 'GCE3_CB53' to 'GCE3_CB63', changed record 459 from 'GCE3_CB56' to 'GCE3_CB66', changed record 460 from 'GCE3_CB68' to 'GCE3_CB78', changed record 475 from 'GCE5_CB56' to 'GCE5_CB66', changed record 482 from 'GCE6_CB93' to 'GCE6_CB103', changed record 484 from 'GCE6_CB58' to 'GCE6_CB68', changed record 500 from 'GCE8_CB78' to 'GCE8_CB88', changed record 505 from 'GCE9_CB71' to 'GCE9_CB81', changed record 506 from 'GCE9_CB83' to 'GCE9_CB93', changed record 538 from 'GCE2_CB73' to 'GCE2_CB83', changed record 545 from 'GCE3_CB51' to 'GCE3_CB61', changed record 546 from 'GCE3_CB53' to 'GCE3_CB63', changed record 547 from 'GCE3_CB56' to 'GCE3_CB66', changed record 548 from 'GCE3_CB68' to 'GCE3_CB78', changed record 563 from 'GCE5_CB56' to 'GCE5_CB66', changed record 570 from 'GCE6_CB93' to 'GCE6_CB103', changed record 572 from 'GCE6_CB58' to 'GCE6_CB68', changed record 588 from 'GCE8_CB78' to 'GCE8_CB88', changed record 593 from 'GCE9_CB71' to 'GCE9_CB81', changed record 594 from 'GCE9_CB83' to 'GCE9_CB93', changed record 626 from 'GCE2_CB73' to 'GCE2_CB83', changed record 633 from 'GCE3_CB51' to 'GCE3_CB61', changed record 634 from 'GCE3_CB53' to 'GCE3_CB63', changed record 635 from 'GCE3_CB56' to 'GCE3_CB66', changed record 636 from 'GCE3_CB68' to 'GCE3_CB78', changed record 651 from 'GCE5_CB56' to 'GCE5_CB66', changed record 658 from 'GCE6_CB93' to 'GCE6_CB103', changed record 660 from 'GCE6_CB58' to 'GCE6_CB68', changed record 676 from 'GCE8_CB78' to 'GCE8_CB88', changed record 681 from 'GCE9_CB71' to 'GCE9_CB81', changed record 682 from 'GCE9_CB83' to 'GCE9_CB93', changed record 714 from 'GCE2_CB73' to 'GCE2_CB83', changed record 721 from 'GCE3_CB51' to 'GCE3_CB61', changed record 722 from 'GCE3_CB53' to 'GCE3_CB63', changed record 723 from 'GCE3_CB56' to 'GCE3_CB66', changed record 724 from 'GCE3_CB68' to 'GCE3_CB78', changed record 739 from 'GCE5_CB56' to 'GCE5_CB66', changed record 746 from 'GCE6_CB93' to 'GCE6_CB103', changed record 748 from 'GCE6_CB58' to 'GCE6_CB68', changed record 764 from 'GCE8_CB78' to 'GCE8_CB88', changed record 769 from 'GCE9_CB71' to 'GCE9_CB81', changed record 770 from 'GCE9_CB83' to 'GCE9_CB93' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB83' to 'GCE2_CB93', changed record 17 from 'GCE3_CB61' to 'GCE3_CB71', changed record 18 from 'GCE3_CB63' to 'GCE3_CB73', changed record 19 from 'GCE3_CB66' to 'GCE3_CB76', changed record 20 from 'GCE3_CB78' to 'GCE3_CB88', changed record 35 from 'GCE5_CB66' to 'GCE5_CB76', changed record 42 from 'GCE6_CB103' to 'GCE6_CB113', changed record 44 from 'GCE6_CB68' to 'GCE6_CB78', changed record 60 from 'GCE8_CB88' to 'GCE8_CB98', changed record 65 from 'GCE9_CB81' to 'GCE9_CB91', changed record 66 from 'GCE9_CB93' to 'GCE9_CB103', changed record 98 from 'GCE2_CB83' to 'GCE2_CB93', changed record 105 from 'GCE3_CB61' to 'GCE3_CB71', changed record 106 from 'GCE3_CB63' to 'GCE3_CB73', changed record 107 from 'GCE3_CB66' to 'GCE3_CB76', changed record 108 from 'GCE3_CB78' to 'GCE3_CB88', changed record 123 from 'GCE5_CB66' to 'GCE5_CB76', changed record 130 from 'GCE6_CB103' to 'GCE6_CB113', changed record 132 from 'GCE6_CB68' to 'GCE6_CB78', changed record 148 from 'GCE8_CB88' to 'GCE8_CB98', changed record 153 from 'GCE9_CB81' to 'GCE9_CB91', changed record 154 from 'GCE9_CB93' to 'GCE9_CB103', changed record 186 from 'GCE2_CB83' to 'GCE2_CB93', changed record 193 from 'GCE3_CB61' to 'GCE3_CB71', changed record 194 from 'GCE3_CB63' to 'GCE3_CB73', changed record 195 from 'GCE3_CB66' to 'GCE3_CB76', changed record 196 from 'GCE3_CB78' to 'GCE3_CB88', changed record 211 from 'GCE5_CB66' to 'GCE5_CB76', changed record 218 from 'GCE6_CB103' to 'GCE6_CB113', changed record 220 from 'GCE6_CB68' to 'GCE6_CB78', changed record 236 from 'GCE8_CB88' to 'GCE8_CB98', changed record 241 from 'GCE9_CB81' to 'GCE9_CB91', changed record 242 from 'GCE9_CB93' to 'GCE9_CB103', changed record 274 from 'GCE2_CB83' to 'GCE2_CB93', changed record 281 from 'GCE3_CB61' to 'GCE3_CB71', changed record 282 from 'GCE3_CB63' to 'GCE3_CB73', changed record 283 from 'GCE3_CB66' to 'GCE3_CB76', changed record 284 from 'GCE3_CB78' to 'GCE3_CB88', changed record 299 from 'GCE5_CB66' to 'GCE5_CB76', changed record 306 from 'GCE6_CB103' to 'GCE6_CB113', changed record 308 from 'GCE6_CB68' to 'GCE6_CB78', changed record 324 from 'GCE8_CB88' to 'GCE8_CB98', changed record 329 from 'GCE9_CB81' to 'GCE9_CB91', changed record 330 from 'GCE9_CB93' to 'GCE9_CB103', changed record 362 from 'GCE2_CB83' to 'GCE2_CB93', changed record 369 from 'GCE3_CB61' to 'GCE3_CB71', changed record 370 from 'GCE3_CB63' to 'GCE3_CB73', changed record 371 from 'GCE3_CB66' to 'GCE3_CB76', changed record 372 from 'GCE3_CB78' to 'GCE3_CB88', changed record 387 from 'GCE5_CB66' to 'GCE5_CB76', changed record 394 from 'GCE6_CB103' to 'GCE6_CB113', changed record 396 from 'GCE6_CB68' to 'GCE6_CB78', changed record 412 from 'GCE8_CB88' to 'GCE8_CB98', changed record 417 from 'GCE9_CB81' to 'GCE9_CB91', changed record 418 from 'GCE9_CB93' to 'GCE9_CB103', changed record 450 from 'GCE2_CB83' to 'GCE2_CB93', changed record 457 from 'GCE3_CB61' to 'GCE3_CB71', changed record 458 from 'GCE3_CB63' to 'GCE3_CB73', changed record 459 from 'GCE3_CB66' to 'GCE3_CB76', changed record 460 from 'GCE3_CB78' to 'GCE3_CB88', changed record 475 from 'GCE5_CB66' to 'GCE5_CB76', changed record 482 from 'GCE6_CB103' to 'GCE6_CB113', changed record 484 from 'GCE6_CB68' to 'GCE6_CB78', changed record 500 from 'GCE8_CB88' to 'GCE8_CB98', changed record 505 from 'GCE9_CB81' to 'GCE9_CB91', changed record 506 from 'GCE9_CB93' to 'GCE9_CB103', changed record 538 from 'GCE2_CB83' to 'GCE2_CB93', changed record 545 from 'GCE3_CB61' to 'GCE3_CB71', changed record 546 from 'GCE3_CB63' to 'GCE3_CB73', changed record 547 from 'GCE3_CB66' to 'GCE3_CB76', changed record 548 from 'GCE3_CB78' to 'GCE3_CB88', changed record 563 from 'GCE5_CB66' to 'GCE5_CB76', changed record 570 from 'GCE6_CB103' to 'GCE6_CB113', changed record 572 from 'GCE6_CB68' to 'GCE6_CB78', changed record 588 from 'GCE8_CB88' to 'GCE8_CB98', changed record 593 from 'GCE9_CB81' to 'GCE9_CB91', changed record 594 from 'GCE9_CB93' to 'GCE9_CB103', changed record 626 from 'GCE2_CB83' to 'GCE2_CB93', changed record 633 from 'GCE3_CB61' to 'GCE3_CB71', changed record 634 from 'GCE3_CB63' to 'GCE3_CB73', changed record 635 from 'GCE3_CB66' to 'GCE3_CB76', changed record 636 from 'GCE3_CB78' to 'GCE3_CB88', changed record 651 from 'GCE5_CB66' to 'GCE5_CB76', changed record 658 from 'GCE6_CB103' to 'GCE6_CB113', changed record 660 from 'GCE6_CB68' to 'GCE6_CB78', changed record 676 from 'GCE8_CB88' to 'GCE8_CB98', changed record 681 from 'GCE9_CB81' to 'GCE9_CB91', changed record 682 from 'GCE9_CB93' to 'GCE9_CB103', changed record 714 from 'GCE2_CB83' to 'GCE2_CB93', changed record 721 from 'GCE3_CB61' to 'GCE3_CB71', changed record 722 from 'GCE3_CB63' to 'GCE3_CB73', changed record 723 from 'GCE3_CB66' to 'GCE3_CB76', changed record 724 from 'GCE3_CB78' to 'GCE3_CB88', changed record 739 from 'GCE5_CB66' to 'GCE5_CB76', changed record 746 from 'GCE6_CB103' to 'GCE6_CB113', changed record 748 from 'GCE6_CB68' to 'GCE6_CB78', changed record 764 from 'GCE8_CB88' to 'GCE8_CB98', changed record 769 from 'GCE9_CB81' to 'GCE9_CB91', changed record 770 from 'GCE9_CB93' to 'GCE9_CB103' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB93' to 'GCE2_CB33', changed record 17 from 'GCE3_CB71' to 'GCE3_CB11', changed record 18 from 'GCE3_CB73' to 'GCE3_CB13', changed record 19 from 'GCE3_CB76' to 'GCE3_CB16', changed record 20 from 'GCE3_CB88' to 'GCE3_CB28', changed record 35 from 'GCE5_CB76' to 'GCE5_CB16', changed record 42 from 'GCE6_CB113' to 'GCE6_CB53', changed record 44 from 'GCE6_CB78' to 'GCE6_CB18', changed record 60 from 'GCE8_CB98' to 'GCE8_CB38', changed record 65 from 'GCE9_CB91' to 'GCE9_CB31', changed record 66 from 'GCE9_CB103' to 'GCE9_CB43', changed record 98 from 'GCE2_CB93' to 'GCE2_CB33', changed record 105 from 'GCE3_CB71' to 'GCE3_CB11', changed record 106 from 'GCE3_CB73' to 'GCE3_CB13', changed record 107 from 'GCE3_CB76' to 'GCE3_CB16', changed record 108 from 'GCE3_CB88' to 'GCE3_CB28', changed record 123 from 'GCE5_CB76' to 'GCE5_CB16', changed record 130 from 'GCE6_CB113' to 'GCE6_CB53', changed record 132 from 'GCE6_CB78' to 'GCE6_CB18', changed record 148 from 'GCE8_CB98' to 'GCE8_CB38', changed record 153 from 'GCE9_CB91' to 'GCE9_CB31', changed record 154 from 'GCE9_CB103' to 'GCE9_CB43', changed record 186 from 'GCE2_CB93' to 'GCE2_CB33', changed record 193 from 'GCE3_CB71' to 'GCE3_CB11', changed record 194 from 'GCE3_CB73' to 'GCE3_CB13', changed record 195 from 'GCE3_CB76' to 'GCE3_CB16', changed record 196 from 'GCE3_CB88' to 'GCE3_CB28', changed record 211 from 'GCE5_CB76' to 'GCE5_CB16', changed record 218 from 'GCE6_CB113' to 'GCE6_CB53', changed record 220 from 'GCE6_CB78' to 'GCE6_CB18', changed record 236 from 'GCE8_CB98' to 'GCE8_CB38', changed record 241 from 'GCE9_CB91' to 'GCE9_CB31', changed record 242 from 'GCE9_CB103' to 'GCE9_CB43', changed record 274 from 'GCE2_CB93' to 'GCE2_CB33', changed record 281 from 'GCE3_CB71' to 'GCE3_CB11', changed record 282 from 'GCE3_CB73' to 'GCE3_CB13', changed record 283 from 'GCE3_CB76' to 'GCE3_CB16', changed record 284 from 'GCE3_CB88' to 'GCE3_CB28', changed record 299 from 'GCE5_CB76' to 'GCE5_CB16', changed record 306 from 'GCE6_CB113' to 'GCE6_CB53', changed record 308 from 'GCE6_CB78' to 'GCE6_CB18', changed record 324 from 'GCE8_CB98' to 'GCE8_CB38', changed record 329 from 'GCE9_CB91' to 'GCE9_CB31', changed record 330 from 'GCE9_CB103' to 'GCE9_CB43', changed record 362 from 'GCE2_CB93' to 'GCE2_CB33', changed record 369 from 'GCE3_CB71' to 'GCE3_CB11', changed record 370 from 'GCE3_CB73' to 'GCE3_CB13', changed record 371 from 'GCE3_CB76' to 'GCE3_CB16', changed record 372 from 'GCE3_CB88' to 'GCE3_CB28', changed record 387 from 'GCE5_CB76' to 'GCE5_CB16', changed record 394 from 'GCE6_CB113' to 'GCE6_CB53', changed record 396 from 'GCE6_CB78' to 'GCE6_CB18', changed record 412 from 'GCE8_CB98' to 'GCE8_CB38', changed record 417 from 'GCE9_CB91' to 'GCE9_CB31', changed record 418 from 'GCE9_CB103' to 'GCE9_CB43', changed record 450 from 'GCE2_CB93' to 'GCE2_CB33', changed record 457 from 'GCE3_CB71' to 'GCE3_CB11', changed record 458 from 'GCE3_CB73' to 'GCE3_CB13', changed record 459 from 'GCE3_CB76' to 'GCE3_CB16', changed record 460 from 'GCE3_CB88' to 'GCE3_CB28', changed record 475 from 'GCE5_CB76' to 'GCE5_CB16', changed record 482 from 'GCE6_CB113' to 'GCE6_CB53', changed record 484 from 'GCE6_CB78' to 'GCE6_CB18', changed record 500 from 'GCE8_CB98' to 'GCE8_CB38', changed record 505 from 'GCE9_CB91' to 'GCE9_CB31', changed record 506 from 'GCE9_CB103' to 'GCE9_CB43', changed record 538 from 'GCE2_CB93' to 'GCE2_CB33', changed record 545 from 'GCE3_CB71' to 'GCE3_CB11', changed record 546 from 'GCE3_CB73' to 'GCE3_CB13', changed record 547 from 'GCE3_CB76' to 'GCE3_CB16', changed record 548 from 'GCE3_CB88' to 'GCE3_CB28', changed record 563 from 'GCE5_CB76' to 'GCE5_CB16', changed record 570 from 'GCE6_CB113' to 'GCE6_CB53', changed record 572 from 'GCE6_CB78' to 'GCE6_CB18', changed record 588 from 'GCE8_CB98' to 'GCE8_CB38', changed record 593 from 'GCE9_CB91' to 'GCE9_CB31', changed record 594 from 'GCE9_CB103' to 'GCE9_CB43', changed record 626 from 'GCE2_CB93' to 'GCE2_CB33', changed record 633 from 'GCE3_CB71' to 'GCE3_CB11', changed record 634 from 'GCE3_CB73' to 'GCE3_CB13', changed record 635 from 'GCE3_CB76' to 'GCE3_CB16', changed record 636 from 'GCE3_CB88' to 'GCE3_CB28', changed record 651 from 'GCE5_CB76' to 'GCE5_CB16', changed record 658 from 'GCE6_CB113' to 'GCE6_CB53', changed record 660 from 'GCE6_CB78' to 'GCE6_CB18', changed record 676 from 'GCE8_CB98' to 'GCE8_CB38', changed record 681 from 'GCE9_CB91' to 'GCE9_CB31', changed record 682 from 'GCE9_CB103' to 'GCE9_CB43', changed record 714 from 'GCE2_CB93' to 'GCE2_CB33', changed record 721 from 'GCE3_CB71' to 'GCE3_CB11', changed record 722 from 'GCE3_CB73' to 'GCE3_CB13', changed record 723 from 'GCE3_CB76' to 'GCE3_CB16', changed record 724 from 'GCE3_CB88' to 'GCE3_CB28', changed record 739 from 'GCE5_CB76' to 'GCE5_CB16', changed record 746 from 'GCE6_CB113' to 'GCE6_CB53', changed record 748 from 'GCE6_CB78' to 'GCE6_CB18', changed record 764 from 'GCE8_CB98' to 'GCE8_CB38', changed record 769 from 'GCE9_CB91' to 'GCE9_CB31', changed record 770 from 'GCE9_CB103' to 'GCE9_CB43' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: 99 values in 'Location' were updated with new values ('update_data'): changed record 10 from 'GCE2_CB33' to 'GCE2_CB23', changed record 17 from 'GCE3_CB11' to 'GCE3_CB1', changed record 18 from 'GCE3_CB13' to 'GCE3_CB3', changed record 19 from 'GCE3_CB16' to 'GCE3_CB6', changed record 20 from 'GCE3_CB28' to 'GCE3_CB18', changed record 35 from 'GCE5_CB16' to 'GCE5_CB6', changed record 42 from 'GCE6_CB53' to 'GCE6_CB43', changed record 44 from 'GCE6_CB18' to 'GCE6_CB8', changed record 60 from 'GCE8_CB38' to 'GCE8_CB28', changed record 65 from 'GCE9_CB31' to 'GCE9_CB21', changed record 66 from 'GCE9_CB43' to 'GCE9_CB33', changed record 98 from 'GCE2_CB33' to 'GCE2_CB23', changed record 105 from 'GCE3_CB11' to 'GCE3_CB1', changed record 106 from 'GCE3_CB13' to 'GCE3_CB3', changed record 107 from 'GCE3_CB16' to 'GCE3_CB6', changed record 108 from 'GCE3_CB28' to 'GCE3_CB18', changed record 123 from 'GCE5_CB16' to 'GCE5_CB6', changed record 130 from 'GCE6_CB53' to 'GCE6_CB43', changed record 132 from 'GCE6_CB18' to 'GCE6_CB8', changed record 148 from 'GCE8_CB38' to 'GCE8_CB28', changed record 153 from 'GCE9_CB31' to 'GCE9_CB21', changed record 154 from 'GCE9_CB43' to 'GCE9_CB33', changed record 186 from 'GCE2_CB33' to 'GCE2_CB23', changed record 193 from 'GCE3_CB11' to 'GCE3_CB1', changed record 194 from 'GCE3_CB13' to 'GCE3_CB3', changed record 195 from 'GCE3_CB16' to 'GCE3_CB6', changed record 196 from 'GCE3_CB28' to 'GCE3_CB18', changed record 211 from 'GCE5_CB16' to 'GCE5_CB6', changed record 218 from 'GCE6_CB53' to 'GCE6_CB43', changed record 220 from 'GCE6_CB18' to 'GCE6_CB8', changed record 236 from 'GCE8_CB38' to 'GCE8_CB28', changed record 241 from 'GCE9_CB31' to 'GCE9_CB21', changed record 242 from 'GCE9_CB43' to 'GCE9_CB33', changed record 274 from 'GCE2_CB33' to 'GCE2_CB23', changed record 281 from 'GCE3_CB11' to 'GCE3_CB1', changed record 282 from 'GCE3_CB13' to 'GCE3_CB3', changed record 283 from 'GCE3_CB16' to 'GCE3_CB6', changed record 284 from 'GCE3_CB28' to 'GCE3_CB18', changed record 299 from 'GCE5_CB16' to 'GCE5_CB6', changed record 306 from 'GCE6_CB53' to 'GCE6_CB43', changed record 308 from 'GCE6_CB18' to 'GCE6_CB8', changed record 324 from 'GCE8_CB38' to 'GCE8_CB28', changed record 329 from 'GCE9_CB31' to 'GCE9_CB21', changed record 330 from 'GCE9_CB43' to 'GCE9_CB33', changed record 362 from 'GCE2_CB33' to 'GCE2_CB23', changed record 369 from 'GCE3_CB11' to 'GCE3_CB1', changed record 370 from 'GCE3_CB13' to 'GCE3_CB3', changed record 371 from 'GCE3_CB16' to 'GCE3_CB6', changed record 372 from 'GCE3_CB28' to 'GCE3_CB18', changed record 387 from 'GCE5_CB16' to 'GCE5_CB6', changed record 394 from 'GCE6_CB53' to 'GCE6_CB43', changed record 396 from 'GCE6_CB18' to 'GCE6_CB8', changed record 412 from 'GCE8_CB38' to 'GCE8_CB28', changed record 417 from 'GCE9_CB31' to 'GCE9_CB21', changed record 418 from 'GCE9_CB43' to 'GCE9_CB33', changed record 450 from 'GCE2_CB33' to 'GCE2_CB23', changed record 457 from 'GCE3_CB11' to 'GCE3_CB1', changed record 458 from 'GCE3_CB13' to 'GCE3_CB3', changed record 459 from 'GCE3_CB16' to 'GCE3_CB6', changed record 460 from 'GCE3_CB28' to 'GCE3_CB18', changed record 475 from 'GCE5_CB16' to 'GCE5_CB6', changed record 482 from 'GCE6_CB53' to 'GCE6_CB43', changed record 484 from 'GCE6_CB18' to 'GCE6_CB8', changed record 500 from 'GCE8_CB38' to 'GCE8_CB28', changed record 505 from 'GCE9_CB31' to 'GCE9_CB21', changed record 506 from 'GCE9_CB43' to 'GCE9_CB33', changed record 538 from 'GCE2_CB33' to 'GCE2_CB23', changed record 545 from 'GCE3_CB11' to 'GCE3_CB1', changed record 546 from 'GCE3_CB13' to 'GCE3_CB3', changed record 547 from 'GCE3_CB16' to 'GCE3_CB6', changed record 548 from 'GCE3_CB28' to 'GCE3_CB18', changed record 563 from 'GCE5_CB16' to 'GCE5_CB6', changed record 570 from 'GCE6_CB53' to 'GCE6_CB43', changed record 572 from 'GCE6_CB18' to 'GCE6_CB8', changed record 588 from 'GCE8_CB38' to 'GCE8_CB28', changed record 593 from 'GCE9_CB31' to 'GCE9_CB21', changed record 594 from 'GCE9_CB43' to 'GCE9_CB33', changed record 626 from 'GCE2_CB33' to 'GCE2_CB23', changed record 633 from 'GCE3_CB11' to 'GCE3_CB1', changed record 634 from 'GCE3_CB13' to 'GCE3_CB3', changed record 635 from 'GCE3_CB16' to 'GCE3_CB6', changed record 636 from 'GCE3_CB28' to 'GCE3_CB18', changed record 651 from 'GCE5_CB16' to 'GCE5_CB6', changed record 658 from 'GCE6_CB53' to 'GCE6_CB43', changed record 660 from 'GCE6_CB18' to 'GCE6_CB8', changed record 676 from 'GCE8_CB38' to 'GCE8_CB28', changed record 681 from 'GCE9_CB31' to 'GCE9_CB21', changed record 682 from 'GCE9_CB43' to 'GCE9_CB33', changed record 714 from 'GCE2_CB33' to 'GCE2_CB23', changed record 721 from 'GCE3_CB11' to 'GCE3_CB1', changed record 722 from 'GCE3_CB13' to 'GCE3_CB3', changed record 723 from 'GCE3_CB16' to 'GCE3_CB6', changed record 724 from 'GCE3_CB28' to 'GCE3_CB18', changed record 739 from 'GCE5_CB16' to 'GCE5_CB6', changed record 746 from 'GCE6_CB53' to 'GCE6_CB43', changed record 748 from 'GCE6_CB18' to 'GCE6_CB8', changed record 764 from 'GCE8_CB38' to 'GCE8_CB28', changed record 769 from 'GCE9_CB31' to 'GCE9_CB21', changed record 770 from 'GCE9_CB43' to 'GCE9_CB33' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: 18 values in 'Location' were updated with new values ('update_data'): changed record 20 from 'GCE3_CB18' to 'GCE3_CB8', changed record 65 from 'GCE9_CB21' to 'GCE9_CB11', changed record 108 from 'GCE3_CB18' to 'GCE3_CB8', changed record 153 from 'GCE9_CB21' to 'GCE9_CB11', changed record 196 from 'GCE3_CB18' to 'GCE3_CB8', changed record 241 from 'GCE9_CB21' to 'GCE9_CB11', changed record 284 from 'GCE3_CB18' to 'GCE3_CB8', changed record 329 from 'GCE9_CB21' to 'GCE9_CB11', changed record 372 from 'GCE3_CB18' to 'GCE3_CB8', changed record 417 from 'GCE9_CB21' to 'GCE9_CB11', changed record 460 from 'GCE3_CB18' to 'GCE3_CB8', changed record 505 from 'GCE9_CB21' to 'GCE9_CB11', changed record 548 from 'GCE3_CB18' to 'GCE3_CB8', changed record 593 from 'GCE9_CB21' to 'GCE9_CB11', changed record 636 from 'GCE3_CB18' to 'GCE3_CB8', changed record 681 from 'GCE9_CB21' to 'GCE9_CB11', changed record 724 from 'GCE3_CB18' to 'GCE3_CB8', changed record 769 from 'GCE9_CB21' to 'GCE9_CB11' 07-Feb-2018: Q/C flagging criteria applied for column(s) Location, 'flags' field updated ('dataflag') 07-Feb-2018: added Longitude and Latitude columns by matching values in the Location column to entries in the GCE geographic database ('add_stationcoords') 07-Feb-2018: added column 'Location_Notes' at position 8 ('addcol') 07-Feb-2018: manually added 'E' flags to 99 records in column(s) Location, Latitude and Longitude ('addflags') 07-Feb-2018: locked Q/C flag criteria for columns Location, Longitude and Latitude to prevent automatic evaluation ('flag_locks') 07-Feb-2018: updated 1 metadata fields in the Data sections ('addmeta') 07-Feb-2018: added geographic metadata based on matching values in columns Site and Location to site and transect names registered in 'geo_polygons.mat' and location and station names registered in 'geo_locations.mat' ('add_sitemetadata') 07-Feb-2018: updated 8 metadata fields in the Site sections ('addmeta') 07-Feb-2018: updated 1 metadata fields in the Dataset sections ('addmeta') 07-Feb-2018: imported Dataset, Project, Site, Study, Status, Supplement metadata descriptors from the GCE Metabase ('imp_gcemetadata') 07-Feb-2018: updated 57 metadata fields in the Dataset, Project, Site, Status, Study, Supplement sections ('addmeta') 07-Feb-2018: sorted by columns Year(ascending), Month(ascending), Day(ascending), Site(ascending), Zone(ascending), Plot(ascending), Location(ascending), Location_Notes(ascending), Longitude(ascending), Latitude(ascending), Species(ascending), Mollusc_Count(ascending), Quadrat_Area(ascending), Mollusc_Density(ascending) ('sortdata') 07-Feb-2018: removed 86 rows() with duplicate values in all columns ('cleardupes') 07-Feb-2018: edited structure data ('ui_datagrid'): deleted record(s) 589, deleted record(s) 108 07-Feb-2018: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 23-Feb-2018: Data Type of column Mollusc_Density changed from 'd' to 'f';Numeric Type of column Mollusc_Density changed from 'discrete' to 'continuous ('ui_editor') 23-Feb-2018: flags for columns Location, Longitude and Latitude converted to data columns, flag codes updated in metadata ('flags2cols') 23-Feb-2018: updated 6 metadata fields in the Data sections ('addmeta') 23-Feb-2018: updated 15 metadata fields in the Status, Data sections to reflect attribute metadata ('updatecols') 23-Feb-2018: parsed and formatted metadata ('listmeta') B. Variable Information 1. Variable Name: column 1. Year column 2. Month column 3. Day column 4. Site column 5. Zone column 6. Plot column 7. Location column 8. Flag_Location column 9. Location_Notes column 10. Longitude column 11. Flag_Longitude column 12. Latitude column 13. Flag_Latitude column 14. Species column 15. Mollusc_Count column 16. Quadrat_Area column 17. Mollusc_Density 2. Variable Definition: column 1. Calendar year of observation column 2. Calendar month of observation column 3. Calendar day of observation column 4. Nominal GCE-LTER sampling site column 5. Marsh zone (creekbank or mid-marsh) column 6. Replicate plot number column 7. Geographic location code in the GCE Metadata Database for the sampling plot column 8. QA/QC flags for Geographic location code in the GCE Metadata Database for the sampling plot (flagging criteria, where "x" is Location: manual) column 9. Notes on location assignments and geographic accuracy column 10. Geographic longitude in decimal degrees column 11. QA/QC flags for Geographic longitude in decimal degrees (flagging criteria, where "x" is Longitude: x<-180="I", x>180="I", manual) column 12. Geographic latitude in decimal degrees column 13. QA/QC flags for Geographic latitude in decimal degrees (flagging criteria, where "x" is Latitude: x<-90="I", x>90="I", manual) column 14. Species Name column 15. Number of molloscs counted in the plot area column 16. Area of the sampling quadrat column 17. Number of mollosc species per squre meter 3. Units of Measurement: column 1. YYYY column 2. M column 3. D column 4. none column 5. none column 6. none column 7. none column 8. none column 9. none column 10. degrees column 11. none column 12. degrees column 13. none column 14. none column 15. count column 16. m^2 column 17. count/m^2 4. Data Type a. Storage Type: column 1. integer column 2. integer column 3. integer column 4. integer column 5. integer column 6. integer column 7. string column 8. string column 9. string column 10. floating-point column 11. string column 12. floating-point column 13. string column 14. string column 15. integer column 16. floating-point column 17. floating-point b. Variable Codes: Site: 1 = GCE1 (Eulonia), 2 = GCE2 (Four Mile Island), 3 = GCE3 (North Sapelo), 4 = GCE4 (Meridian), 5 = GCE5 (Folly River), 6 = GCE6 (Dean Creek), 7 = GCE7 (Carrs Island), 8 = GCE8 (Alligator Creek), 9 = GCE9 (Rockdedundy Island), 10 = GCE10 (Hunt Camp) Zone: 1 = Creekbank zone, 2 = Mid-marsh zone, 3 = additional Juncus zone in high marsh Species: Geukensia = Geukensia demissa, Detracia = Detracia floridana, Littoraria = Littoraria irrorata, Melampus = Melampus bidentatus, Polymesoda = Polymesoda caroliniana, Succineidae = unidentified succineid (amber) snails, Ilyanassa = Ilyanassa obsoleta, Hydrobiidae = unidentified hydrobiid snail Flag_Location: E = estimated value Flag_Longitude: E = estimated value Flag_Latitude: E = estimated value c. Numeric Range: column 1. 2015 to 2015 column 2. 10 to 10 column 3. 20 to 26 column 4. 1 to 10 column 5. 1 to 3 column 6. 1 to 53 column 7. (none) column 8. (none) column 9. (none) column 10. -81.4787 to -81.229 column 11. (none) column 12. 31.3075 to 31.5395 column 13. (none) column 14. (none) column 15. 0 to 136 column 16. 0.25 to 0.5 column 17. 0 to 544 d. Missing Value Code: 5. Data Format a. Column Type: column 1. numerical column 2. numerical column 3. numerical column 4. numerical column 5. numerical column 6. numerical column 7. text column 8. text column 9. text column 10. numerical column 11. text column 12. numerical column 13. text column 14. text column 15. numerical column 16. numerical column 17. numerical b. Number of Columns: 17 c. Decimal Places: column 1. 0 column 2. 0 column 3. 0 column 4. 0 column 5. 0 column 6. 0 column 7. 0 column 8. 0 column 9. 0 column 10. 6 column 11. 0 column 12. 6 column 13. 0 column 14. 0 column 15. 0 column 16. 6 column 17. 0 6. Logical Variable Type: column 1. data (discrete) column 2. data (discrete) column 3. data (discrete) column 4. data (discrete) column 5. data (discrete) column 6. data (discrete) column 7. nominal (none) column 8. coded value (none) column 9. free text (none) column 10. geographic coordinate (continuous) column 11. coded value (none) column 12. geographic coordinate (continuous) column 13. coded value (none) column 14. data (none) column 15. data (discrete) column 16. data (continuous) column 17. data (continuous) 7. Flagging Criteria: column 1. none column 2. none column 3. none column 4. none column 5. none column 6. none column 7. manually-assigned flags column 8. none column 9. none column 10. x<-180="I";x>180="I";manually-assigned flags column 11. none column 12. x<-90="I";x>90="I";manually-assigned flags column 13. none column 14. none column 15. none column 16. none column 17. none C. Data Anomalies: V. Supplemental Descriptors A. Data Acquisition 1. Data Forms: 2. Form Location: 3. Data Entry Validation: B. Quality Assurance/Quality Control Procedures: C. Supplemental Materials: D. Computer Programs: E. Archival Practices: F. Publications: not specified G. History of Data Set Usage 1. Data Request History: not specified 2. Data Set Update History: none 3. Review History: none 4. Questions and Comments from Users: none