I. Data Set Descriptors A. Title: Daniela Di Iorio. 2005. Climate data from the SINERR/GCE/UGAMI weather station at Marsh Landing on Sapelo Island, Georgia, from 01-Jan-2004 to 31-Dec-2004. Georgia Coastal Ecosystems LTER Data Catalog (data set MET-GCEM-0501; http://gce-lter.marsci.uga.edu/public/app/dataset_details.asp?accession=MET-GCEM-0501) B. Accession Number: MET-GCEM-0501 C. Description 1. Originator(s): Name: Daniela Di Iorio Address: Dept. of Marine Sciences University of Georgia Athens, Georgia 30602-3636 Country: USA Email: daniela@uga.edu 2. Abstract: Air temperature, relative humidity, barometric pressure, precipitation, photosynthetically-available and total solar radiation, and wind speed and direction were measured using an automated Campbell Scientific Instruments climate station installed at Marsh Landing on Sapelo Island, Georgia. Observations were logged at 15 minute intervals throughout the study period. The sensors were mounted on a 10m aluminum tower, with wind sensors mounted at the top, light sensors at approximately 5m, and other sensors at 2-3m to minimize interference from the surrounding landscape. This climate station was jointly operated by the Sapelo Island National Estuarine Research Reserve, the Georgia Coastal Ecosystems LTER Project, and University of Georgia Marine Institute. 3. Study Type: Monitoring 4. Study Themes: Meteorology 5. LTER Core Areas: Primary Production 6. Georeferences: none 7. Submission Date: Jan 31, 2005 D. Keywords: air pressure, air temperature, atmosphere, climate, Climate Monitoring, climatology, humidity, long term monitoring, Long-term Data, Marsh Landing, meteorology, photosynthetically active radiation, Primary Production, solar radiation, wind II. Research Origin Descriptors A. Overall Project Description 1. Project Title: Georgia Coastal Ecosystems LTER Project 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: May 01, 2006 to Jan 01, 2013 4. Objectives: To understand the mechanisms by which variation in the quality, source and amount of both fresh and salt water create temporal and spatial variability in estuarine habitats and processes, in order to predict directional changes that will occur in response to long-term shifts in estuarine salinity patterns 5. Abstract: The Georgia Coastal Ecosystems (GCE) LTER program, located on the central Georgia coast, was established in 2000. The study domain encompasses three adjacent sounds (Altamaha, Doboy, Sapelo) and includes upland (mainland, barrier islands, marsh hammocks), intertidal (fresh, brackish and salt marsh) and submerged (river, estuary, continental shelf) habitats. Patterns and processes in this complex landscape vary spatially within and between sites, and temporally on multiple scales (tidal, diurnal, seasonal, and interannual). Overlain on this spatial and temporal variation are long-term trends caused by climate change, sea level rise, and human alterations of the landscape. These long-term trends are likely to manifest in many ways, including changes in water quality, river discharge, runoff and tidal inundation patterns throughout the estuarine landscape. The overarching goal of the GCE program is to understand the mechanisms by which variation in the quality, source and amount of both fresh and salt water create temporal and spatial variability in estuarine habitats and processes, in order to predict directional changes that will occur in response to long-term shifts in estuarine salinity patterns. The objectives of the current funding cycle are 1) to continue to document long-term patterns of environmental forcing to the coastal zone, 2) to link environmental forcing to observed spatial and temporal patterns of biogeochemical processes, primary production, community dynamics, decomposition and disturbance, 3) to investigate the underlying mechanisms by which environmental gradients along the longitudinal (freshwater-saltwater) and 4) lateral (upland-subtidal) axes of estuaries drive ecosystem change, and 5) to explore the relative importance of larval transport and the conditions of the adult environment in determining community and genetic structure across both the longitudinal and vertical gradients of the estuary. To meet these objectives, we utilize a suite of approaches including long-term monitoring of abiotic drivers and ecosystem responses; manipulative and natural experiments designed to enable us to examine the importance of key ecosystem drivers; and modeling. 6. Funding Source: NSF OCE 0620959 B. Sub-project Description 1. Site Description a. Geographic Location: ML -- Marsh Landing, Sapelo Island, Georgia, USA ML_MET -- Marsh Landing climate station Coordinates: ML -- NW: 081 17 50.80 W, 31 25 08.03 N NE: 081 17 40.58 W, 31 25 08.03 N SE: 081 17 40.58 W, 31 24 59.03 N SW: 081 17 50.80 W, 31 24 59.03 N ML_MET -- 081 17 43.5 W, 31 25 04.2 N b. Physiographic Region: ML -- Barrier island ML_MET -- Barrier island c. Landform Components: ML -- Intertidal salt marsh ML_MET -- Intertidal salt marsh d. Hydrographic Characteristics: ML -- Site borders the Duplin River and is subject to 2-3m semi-diurnal tides ML_MET -- Site borders the Duplin River and is subject to 2-3m semi-diurnal tides e. Topographic Attributes: ML -- Flat, with elevations ranging from 0-3m above mean low tide ML_MET -- Flat, with elevations ranging from 0-3m above mean low tide f. Geology, Lithology and Soils: ML -- unspecified ML_MET -- unspecified g. Vegetation Communities: ML -- Spartina alterniflora in low marsh, salt pan and salt-tolerant vegetation mixture in high marsh ML_MET -- Spartina alterniflora in low marsh, salt pan and salt-tolerant vegetation mixture in high marsh h. History of Land Use and Disturbance: none recorded 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: Data from all sensors were collected and logged at 15 minute intervals by an automated Campbell Scientific Instruments data logger (CR10X). Summary statistics were also tabulated by the CR10X program and logged at 60 minute and 24 hour intervals. Sets of measurements and calculations were stored as distinct numbered arrays in the data logger storage module, and then parsed and analyzed separately when the data was periodically downloaded from the station. b. Permanent Plots: none c. Data Collection Duration and Frequency: Data from all sensors were collected and logged at 15 minute intervals by an automated Campbell Scientific Instruments data logger (model CR10X). Values and times of minimum and maximum air temperature and maximum wind speed were calculated by the CR10X program, as well as Standard Error of Wind Direction. Arrays of measurements and calculations were stored by the CR10X logger, and downloaded semi-hourly via telephone modem to computers at UGA . Data arrays were then parsed, documented and archived in the GCE-LTER Information Management office. Beginning of Observations: Jan 01, 2004 End of Observations: Dec 31, 2004 3. Research Methods a. Field and Laboratory Methods: Method 1: Climate Measurements -- Sensor readings were taken at 5 second intervals by a Campbell Scientific Instruments CR-10X data logger, and converted from analog voltage to calibrated digital data if necessary. Digitized data values were summarized and logged to memory storage modules as named arrays at 15 minute, 60 minute and 24 hour intervals by programs uploaded to the CR-10X (NERR CDMO program NERR_4.CSI). Method 2: Data Acquisition and Processing -- Data Acquisition and Processing - Stored data were periodically downloaded from the CR-10X data logger by telephone modem or direct serial connection using Campbell Scientific Instruments LoggerNet 2.1 or PC208W software. Data arrays were parsed from the CSI data files, validated, documented and subjected to automated quality control analysis by custom programs in the GCE Data Toolbox for MATLAB. Negative values of PAR (photosynthetically-available radiation) and total solar radiation, representing dark signal noise, were converted to zeros during data processing. b. Instrumentation: Method 1: Anemometer and Wind Vane Manufacturer: Campbell Scientific Instruments (Model: 03001-5 Wind Sentry) Parameter: Wind Direction (Readability: 0.8 m/s threshold, Range: 0 to 360 degrees) Parameter: Wind Speed (Accuracy: ±0.5 m/s, Range: 0.5 to 50 m/s) Barometric Pressure Sensor Manufacturer: Campbell Scientific Instruments (Model: CS105) Parameter: Barometric Pressure (Accuracy: ±0.5 mb at +20°C, Range: 600 to 1060 mb) Pyranometer Manufacturer: LICOR (Model: LI200X) Parameter: Solar Radiation (Accuracy: +/-3% typical, +/-5% maximum, Range: 0 to 3000 W/m^2 (400-1100nm)) Quantum Sensor Manufacturer: LICOR (Model: LI190SB) Parameter: Photosynthetically-Available Radiation (Accuracy: <1% deviation, Range: 0 to 10,000 µE/m^2/s) Rain Gauge Manufacturer: Campbell Scientific Instruments (Model: TE525MM) Parameter: Precipitation (Accuracy: 1% at <10 mm/hr to 5% at 20-30 mm/hr, Readability: 0.1 mm, ) Temperature and Humidity Probe Manufacturer: Campbell Scientific Instruments (Model: HMP45C) Parameter: Air Temperature (Accuracy: 0.2-0.4 C, Range: -39.2 to +60 C) Parameter: Relative Humidity (Accuracy: 2%, Range: 0-100%) Method 2: none c. Taxonomy and Systematics: Method 1: not applicable Method 2: not applicable d. Permit History: Method 1: not applicable Method 2: not applicable 4. Project Personnel a. Personnel: 1: Daniela Di Iorio 2: Dorset Hurley 3: Patrick Hagan 4: Jane Garbisch 5: Wade M. Sheldon, Jr. b. Affiliations: 1: University of Georgia, Athens, Georgia 2: Sapelo Island National Estuarine Research Reserve, Sapelo Island, Georgia 3: Sapelo Island National Estuarine Research Reserve, Sapelo Island, Georgia 4: University of Georgia Marine Institute, Sapelo Island, Georgia 5: University of Georgia, Athens, Georgia III. Data Set Status and Accessibility A. Status 1. Latest Update: 21-Jun-2013 2. Latest Archive Date: 21-Jun-2013 3. Latest Metadata Update: 21-Jun-2013 4. Data Verification Status: New submission 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: All publications based on this data set must cite the contributor and Georgia Coastal Ecosystems LTER project, and two copies of the manuscript must be submitted to the GCE-LTER Information Management Office. a. Release Date: Affiliates: Jan 31, 2005, Public: Jan 31, 2006 b. Citation: Data provided by the Georgia Coastal Ecosystems Long Term Ecological Research Project, supported by funds from NSF OCE 0620959 (data set MET-GCEM-0501) 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: MET-GCEM-0501_1_0.CSV 2. Size: 35115 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: none 6. Quality Control Flag Codes: I = invalid (out of range), Q = questionable, H = high, L = low 7. Authentication Procedures: 8. Calculations: Total_Solar_Rad_kW: Total_Solar_Rad_kW = (Total_Solar_Rad .* 4) ./ 3600 Mean_PAR: Mean_PAR = Total_PAR * 1000 / 900 9. Processing History: Software version: GCE Data Toolbox Version 3.6.0 (05-Jun-2013) Data structure version: GCE Data Structure 1.1 (29-Mar-2001) Original data files processed: 20040101_marshlanding.txt (2976 records) 20040201_marshlanding.txt (2784 records) 20040301_marshlanding.txt (2976 records) 20040401_marshlanding.txt (2862 records) 20040501_marshlanding.txt (2976 records) 20040601_marshlanding.txt (2880 records) 20040701_marshlanding.txt (2976 records) 20040801_marshlanding.txt (2976 records) 20040901_marshlanding.txt (2880 records) 20041001_marshlanding.txt (2976 records) 20041101_marshlanding.txt (2880 records) 20041201_marshlanding.txt (2976 records) Data processing history: 06-Feb-2004: new GCE Data Structure 1.1 created ('newstruct') 06-Feb-2004: parsed data from Campbell Scientific Instruments datalogger output file and assigned metadata descriptors based on array ID and column position ('csi2struct') 06-Feb-2004: automatically assigned study date metadata descriptors based on the range of date values in column Date (add_studydates) 06-Feb-2004: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 06-Feb-2004: copied/reordered columns Date, Temp_Air, Humidity, PAR_Total, Baro_Press, Wind_Speed, Wind_Dir, Precipitation and Total_Solar_Rad ('copycols') 06-Feb-2004: calculated column Total_Solar_Rad_kW generated by the expression '(Total_Solar_Rad .* 4) ./ 3600' (add_calcexpr) 06-Feb-2004: updated 2 metadata fields in the Data, Status sections ('addmeta') 06-Feb-2004: converted negative values in column(s) PAR_Total, Total_Solar_Rad and Total_Solar_Rad_kW to zero ('negative2zero'): column PAR_Total, 425 records affected; column Total_Solar_Rad, 105 records affected; column Total_Solar_Rad_kW, 105 records affected 06-Feb-2004: updated 2 metadata fields in the Data, Status sections ('negative2zero') 06-Feb-2004: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 06-Feb-2004: Year, Month, Day, Hour and Minute datetime columns added after column Date ('add_datepartcols') 06-Feb-2004: updated title ('datatitle') 06-Feb-2004: updated 2 metadata fields in the Dataset, Status sections ('newtitle') 11-Mar-2004: 2784 rows added at the bottom of the data set ('datamerge') 11-Mar-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 11-Mar-2004: manually edited data set metadata ('ui_editmetadata') 11-Mar-2004: edited data set title in structure and metadata ('ui_editor') 02-Apr-2004: 2976 rows added at the bottom of the data set ('datamerge') 02-Apr-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 02-Apr-2004: manually edited data set metadata ('ui_editmetadata') 02-Apr-2004: edited data set title in structure and metadata ('ui_editor') 02-Apr-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 02-Apr-2004: manually edited data set metadata ('ui_editmetadata') 14-May-2004: 2862 rows added at the bottom of the data set ('datamerge') 14-May-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 14-May-2004: manually edited data set metadata ('ui_editmetadata') 14-May-2004: edited data set title in structure and metadata ('ui_editor') 14-May-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 14-May-2004: manually edited data set metadata ('ui_editmetadata') 14-May-2004: QA/QC flags assigned by visual inspection (ui_visualqc); flags set on 2238 records in Temp_Air; flags set on 2239 records in Humidity 14-May-2004: manually updated data set anomalies metadata field (ui_visualqc) 03-Jun-2004: 2976 rows added at the bottom of the data set ('datamerge') 03-Jun-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 03-Jun-2004: manually edited data set metadata ('ui_editmetadata') 03-Jun-2004: edited data set title in structure and metadata ('ui_editor') 03-Jun-2004: converted values in column(s) Temp_Air and Humidity assigned QA/QC flag(s) I (invalid (out of range)) to NaN/empty: 3520 records in Temp_Air, 3532 records in Humidity ('nullflags') 03-Jun-2004: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 03-Jun-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 03-Jun-2004: manually edited data set metadata ('ui_editmetadata') 08-Jul-2004: 2880 rows added at the bottom of the data set ('datamerge') 08-Jul-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 08-Jul-2004: manually edited data set metadata ('ui_editmetadata') 08-Jul-2004: edited data set title in structure and metadata ('ui_editor') 08-Jul-2004: manually updated data set anomalies metadata field (ui_visualqc) 20-Aug-2004: 2976 rows added at the bottom of the data set ('datamerge') 20-Aug-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 20-Aug-2004: manually edited data set metadata ('ui_editmetadata') 20-Aug-2004: edited data set title in structure and metadata ('ui_editor') 20-Aug-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 25-Aug-2004: edited structure data ('ui_datagrid'): deleted record(s) 9445 25-Aug-2004: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 10-Sep-2004: 2976 rows added at the bottom of the data set ('datamerge') 10-Sep-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 10-Sep-2004: manually edited data set metadata ('ui_editmetadata') 10-Sep-2004: edited data set title in structure and metadata ('ui_editor') 10-Sep-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 12-Oct-2004: 2880 rows added at the bottom of the data set ('datamerge') 12-Oct-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 12-Oct-2004: manually edited data set metadata ('ui_editmetadata') 12-Oct-2004: edited data set title in structure and metadata ('ui_editor') 12-Oct-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 15-Oct-2004: edited units and description for column Date to change 'Julian days' to 'serial day' ('juliandate2serialdate') 05-Nov-2004: 2976 rows added at the bottom of the data set ('datamerge') 05-Nov-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 05-Nov-2004: manually edited data set metadata ('ui_editmetadata') 05-Nov-2004: edited data set title in structure and metadata ('ui_editor') 05-Nov-2004: added 19 null records to fill in date/time interval gaps ('fill_date_gaps') 05-Nov-2004: sorted by column Date(ascending) ('sortdata') 05-Nov-2004: deleted existing datetime columns Year, Month, Day, Hour and Minute; updated Year, Month, Day, Hour and Minute datetime columns added after column Date ('add_datepartcols') 05-Nov-2004: manually edited data set metadata ('ui_editmetadata') 05-Nov-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 01-Dec-2004: 2880 rows added at the bottom of the data set ('datamerge') 01-Dec-2004: updated 8 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 01-Dec-2004: manually edited data set metadata ('ui_editmetadata') 01-Dec-2004: edited data set title in structure and metadata ('ui_editor') 01-Dec-2004: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 21-Jan-2005: 2976 rows added at the bottom of the data set ('datamerge') 21-Jan-2005: updated 11 metadata fields in the Data, Dataset, Status, Study sections ('addmeta') 21-Jan-2005: manually edited data set metadata ('ui_editmetadata') 21-Jan-2005: edited data set title in structure and metadata ('ui_editor') 21-Jan-2005: documented flagged and missing values as data set anomalies in the metadata ('add_anomalies') 21-Jan-2005: manually edited data set metadata ('ui_editmetadata') 29-Apr-2005: updated 9 metadata fields in the Site, Status sections ('addmeta') 15-Sep-2005: updated 3 metadata fields in the Status sections ('addmeta') 17-Apr-2006: standardized case of date component column units to prevent unit conversion issues ('batch_update_datetime'): updated units for column Year from 'yyyy' to 'YYYY'; updated units for column Month from 'mm' to 'MM'; updated units for column Day from 'dd' to 'DD' 16-Feb-2009: updated 2 metadata fields in the Site, Status sections ('addmeta') 03-Mar-2011: units of column Total_PAR edited ('ui_editor') 03-Mar-2011: calculated column Mean_PAR generated by the expression 'Total_PAR * 1000 / 900' (add_calcexpr) 03-Mar-2011: updated 2 metadata fields in the Data, Status sections ('addmeta') 03-Mar-2011: QA/QC flags assigned by visual inspection (ui_visualqc); flags set on Temp_Air record(s): 12900 03-Mar-2011: updated 2 metadata fields in the Dataset, Status sections ('addmeta') 21-Jun-2013: query 'Year==2004' run, returned 35115 of 35136 data rows ('querydata') 21-Jun-2013: automatically assigned study date metadata descriptors based on the range of date values in date/time columns (add_studydates) 21-Jun-2013: Name of column Temp_Air changed to Mean_Temp_Ai ('ui_editor') 21-Jun-2013: manually edited data set metadata ('ui_editmetadata') 21-Jun-2013: documented flagged and missing values in columns Mean_Temp_Air, Humidity, Total_PAR, Mean_PAR, Baro_Press, Wind_Speed, Wind_Dir, Precipitation, Total_Solar_Rad and Total_Solar_Rad_kW as data set anomalies in the metadata ('add_anomalies') 21-Jun-2013: manually edited data set metadata ('ui_editmetadata') 21-Jun-2013: imported Dataset, Project, Site, Study, Status, Supplement metadata descriptors from the GCE Metabase ('imp_gcemetadata') 21-Jun-2013: updated 56 metadata fields in the Dataset, Project, Site, Status, Study, Supplement sections ('addmeta') 21-Jun-2013: converted dates in column(s) Date to format yyyy-mm-dd HH:MM:SS 21-Jun-2013: flags for columns Mean_Temp_Air, Humidity, Total_PAR, Mean_PAR, Baro_Press, Wind_Speed, Wind_Dir, Precipitation, Total_Solar_Rad and Total_Solar_Rad_kW converted to data columns, flag codes updated in metadata ('flags2cols') 21-Jun-2013: updated 6 metadata fields in the Data sections ('addmeta') 21-Jun-2013: updated 15 metadata fields in the Status, Data sections to reflect attribute metadata ('updatecols') 21-Jun-2013: parsed and formatted metadata ('listmeta') B. Variable Information 1. Variable Name: column 1. Date column 2. Year column 3. Month column 4. Day column 5. Hour column 6. Minute column 7. Mean_Temp_Air column 8. Flag_Mean_Temp_Air column 9. Humidity column 10. Flag_Humidity column 11. Total_PAR column 12. Flag_Total_PAR column 13. Mean_PAR column 14. Flag_Mean_PAR column 15. Baro_Press column 16. Flag_Baro_Press column 17. Wind_Speed column 18. Flag_Wind_Speed column 19. Wind_Dir column 20. Flag_Wind_Dir column 21. Precipitation column 22. Flag_Precipitation column 23. Total_Solar_Rad column 24. Flag_Total_Solar_Rad column 25. Total_Solar_Rad_kW column 26. Flag_Total_Solar_Rad_kW 2. Variable Definition: column 1. Calendar date and time of observation column 2. Calendar year column 3. Calendar month column 4. Calendar day column 5. Hours - GMT column 6. Minutes column 7. Air temperature (15 minute average) column 8. QA/QC flags for Air temperature (15 minute average) (flagging criteria, where "x" is Mean_Temp_Air: x<-40="I", x>60="I", x<-10="Q", x>45="Q", manual) column 9. Relative humidity (15 minute average) column 10. QA/QC flags for Relative humidity (15 minute average) (flagging criteria, where "x" is Humidity: x<0="I", x>100="I", manual) column 11. Photosynthetically available radiation totalled over 15 minute observation period column 12. QA/QC flags for Photosynthetically available radiation totalled over 15 minute observation period (flagging criteria, where "x" is Total_PAR: x<0="I", x>10000="I", x>2000="Q") column 13. Mean flux density of photosynthetically available radiation during a 15 minute observation period column 14. QA/QC flags for Mean flux density of photosynthetically available radiation during a 15 minute observation period (flagging criteria, where "x" is Mean_PAR: x<0="I") column 15. 15 minute average barometric pressure column 16. QA/QC flags for 15 minute average barometric pressure (flagging criteria, where "x" is Baro_Press: x<0="I", x>1060="I", x<960="Q", x>1050="Q") column 17. Wind speed (15 minute average) column 18. QA/QC flags for Wind speed (15 minute average) (flagging criteria, where "x" is Wind_Speed: x<0="I", x>50="I", x>30="Q") column 19. Wind direction (15 minute vector average performed by the CSI CR10X datalogger program; no magnetic correction) column 20. QA/QC flags for Wind direction (15 minute vector average performed by the CSI CR10X datalogger program; no magnetic correction) (flagging criteria, where "x" is Wind_Dir: x<0="I", x>360="I") column 21. Precipitation totalled over 15 minutes observation period column 22. QA/QC flags for Precipitation totalled over 15 minutes observation period (flagging criteria, where "x" is Precipitation: x<0="I", x>200="Q") column 23. Solar radiation (400-1100nm spectrum) totalled over a 15 minute observation period (i.e. 15 minute flux density) column 24. QA/QC flags for Solar radiation (400-1100nm spectrum) totalled over a 15 minute observation period (i.e. 15 minute flux density) (flagging criteria, where "x" is Total_Solar_Rad: x<0="I") column 25. Solar radiation (i.e. average flux density, based on a 15 minute observation) column 26. QA/QC flags for Solar radiation (i.e. average flux density, based on a 15 minute observation) (flagging criteria, where "x" is Total_Solar_Rad_kW: x<0="I") 3. Units of Measurement: column 1. yyyy-mm-dd HH:MM:SS - GMT column 2. YYYY column 3. MM column 4. DD column 5. hr column 6. min column 7. °C column 8. none column 9. % column 10. none column 11. mmoles/m^2 column 12. none column 13. µE/m^2/s column 14. none column 15. mbar column 16. none column 17. m/s column 18. none column 19. degrees column 20. none column 21. mm column 22. none column 23. kJ/m^2 column 24. none column 25. kW/m^2 column 26. none 4. Data Type a. Storage Type: column 1. alphanumeric column 2. integer column 3. integer column 4. integer column 5. integer column 6. integer column 7. floating-point column 8. alphanumeric column 9. floating-point column 10. alphanumeric column 11. floating-point column 12. alphanumeric column 13. floating-point column 14. alphanumeric column 15. floating-point column 16. alphanumeric column 17. floating-point column 18. alphanumeric column 19. floating-point column 20. alphanumeric column 21. floating-point column 22. alphanumeric column 23. floating-point column 24. alphanumeric column 25. floating-point column 26. alphanumeric b. Variable Codes: Flag_Mean_Temp_Air: I = invalid (out of range), Q = questionable Flag_Humidity: I = invalid (out of range), Q = questionable c. Numeric Range: column 1. (none) column 2. 2004 to 2004 column 3. 1 to 12 column 4. 1 to 31 column 5. 0 to 23 column 6. 0 to 45 column 7. -2.5696 to 35.379 column 8. (none) column 9. 18.29 to 124.43 column 10. (none) column 11. 0 to 1667.9 column 12. (none) column 13. 0 to 1853.2222 column 14. (none) column 15. 1001.2 to 1035.4 column 16. (none) column 17. 0.2 to 15.918 column 18. (none) column 19. 0 to 359.99 column 20. (none) column 21. 0 to 15.494 column 22. (none) column 23. 0 to 541.07 column 24. (none) column 25. 0 to 0.60119 column 26. (none) d. Missing Value Code: 5. Data Format a. Column Type: column 1. text column 2. numerical column 3. numerical column 4. numerical column 5. numerical column 6. numerical column 7. numerical column 8. text column 9. numerical column 10. text column 11. numerical column 12. text column 13. numerical column 14. text column 15. numerical column 16. text column 17. numerical column 18. text column 19. numerical column 20. text column 21. numerical column 22. text column 23. numerical column 24. text column 25. numerical column 26. text b. Number of Columns: 26 c. Decimal Places: column 1. 0 column 2. 0 column 3. 0 column 4. 0 column 5. 0 column 6. 0 column 7. 4 column 8. 0 column 9. 4 column 10. 0 column 11. 2 column 12. 0 column 13. 1 column 14. 0 column 15. 1 column 16. 0 column 17. 4 column 18. 0 column 19. 4 column 20. 0 column 21. 4 column 22. 0 column 23. 4 column 24. 0 column 25. 5 column 26. 0 6. Logical Variable Type: column 1. datetime (none) column 2. datetime (discrete) column 3. datetime (discrete) column 4. datetime (discrete) column 5. datetime (discrete) column 6. datetime (discrete) column 7. data (continuous) column 8. coded value (none) column 9. data (continuous) column 10. coded value (none) column 11. data (continuous) column 12. coded value (none) column 13. calculation (continuous) column 14. coded value (none) column 15. data (continuous) column 16. coded value (none) column 17. data (continuous) column 18. coded value (none) column 19. data (angular) column 20. coded value (none) column 21. data (continuous) column 22. coded value (none) column 23. data (continuous) column 24. coded value (none) column 25. calculation (continuous) column 26. coded value (none) 7. Flagging Criteria: column 1. none column 2. x<2000="Q", x>2010="Q" column 3. x<1="Q", x>12="Q" column 4. x<1="Q", x>31="Q" column 5. x<0="Q", x>23="Q" column 6. x<0="Q", x>59="Q" column 7. x<-40="I", x>60="I", x<-10="Q", x>45="Q", manually-assigned flags column 8. none column 9. x<0="I", x>100="I", manually-assigned flags column 10. none column 11. x<0="I", x>10000="I", x>2000="Q" column 12. none column 13. x<0="I" column 14. none column 15. x<0="I", x>1060="I", x<960="Q", x>1050="Q" column 16. none column 17. x<0="I", x>50="I", x>30="Q" column 18. none column 19. x<0="I", x>360="I" column 20. none column 21. x<0="I", x>200="Q" column 22. none column 23. x<0="I" column 24. none column 25. x<0="I" column 26. none C. Data Anomalies: The value of one record in Mean_Temp_Air was flagged as I (invalid (out of range)) for date 05/14/2004. Values of 3540 records in Mean_Temp_Air are missing for dates: 04/07/2004-05/14/2004 due to sensor failure. Values of 1894 records in Humidity were flagged as I (invalid (out of range)) for dates: 06/05/2004, 06/06/2004, 06/07/2004, 06/08/2004, 06/10/2004, 06/11/2004, 06/13/2004, 06/14/2004, 06/15/2004, 06/16/2004, 06/19/2004, 06/20/2004, 06/21/2004, 06/22/2004, 06/24/2004, 06/25/2004, 06/25/2004-06/26/2004, 06/27/2004, 06/30/2004, 07/01/2004, 07/02/2004, 07/03/2004, 07/06/2004, 07/08/2004, 07/09/2004, 07/12/2004, 07/15/2004, 07/16/2004, 07/18/2004, 07/19/2004, 07/20/2004, 07/21/2004, 07/22/2004, 07/23/2004, 07/24/2004, 07/25/2004, 07/25/2004-07/26/2004, 07/27/2004, 07/28/2004, 07/29/2004, 07/29/2004-07/30/2004, 07/31/2004, 07/31/2004-08/01/2004, 08/02/2004, 08/03/2004, 08/04/2004, 08/10/2004, 08/11/2004, 08/12/2004, 08/13/2004, 08/14/2004, 08/15/2004-08/16/2004, 08/17/2004, 08/17/2004-08/18/2004, 08/19/2004, 08/25/2004, 08/27/2004, 08/29/2004, 08/31/2004, 08/31/2004-09/01/2004, 09/02/2004, 09/06/2004, 09/09/2004, 09/10/2004, 09/10/2004-09/11/2004, 09/12/2004, 09/13/2004, 09/14/2004, 09/23/2004. Values of 33 records in Humidity were flagged as Q (questionable) for dates: 04/04/2004, 12/20/2004. Values of 3551 records in Humidity are missing for dates: 01/12/2004, 04/07/2004-05/14/2004, 05/18/2004, 05/31/2004. Values of 21 records in Total_PAR are missing for dates: 04/07/2004, 04/08/2004. Values of 21 records in Mean_PAR are missing for dates: 04/07/2004, 04/08/2004. Values of 19 records in Baro_Press are missing for date 04/08/2004. Values of 19 records in Wind_Speed are missing for date 04/08/2004. Values of 19 records in Wind_Dir are missing for date 04/08/2004. Values of 19 records in Precipitation are missing for date 04/08/2004. Values of 19 records in Total_Solar_Rad are missing for date 04/08/2004. Values of 19 records in Total_Solar_Rad_kW are missing for date 04/08/2004. V. Supplemental Descriptors A. Data Acquisition 1. Data Forms: none 2. Form Location: not applicable 3. Data Entry Validation: B. Quality Assurance/Quality Control Procedures: QA/QC flags are generated automatically according to domain criteria specified for each data column. A flag column is generated and appended to the data table if any flags are assigned to any value, listing the flags for each column on each row. C. Supplemental Materials: not applicable D. Computer Programs: LoggerNet 2.1 (Campbell Scientific Instruments, Inc.), Matlab 6.5 (The Mathworks, Inc.) E. Archival Practices: Raw and processed data are archived in various digital formats on hard disk and CD at the GCE-LTER Information Management Office (GCE-LTER Project, Dept. of Marine Sciences, University of Georgia, Athens, GA 30602-3636, http://gce-lter.marsci.uga.edu/lter) 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