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GCE-LTER Data Set Summary

Accession: NUT-GCEM-0206 Research Theme: General Nutrient Chemistry (Monitoring)
Contributors: Merryl Alber, Monica Palta, Ed Sheppard
Title: October 2001 water column particulate carbon and nitrogen concentrations for Georgia Coastal Ecosystems LTER sampling sites
Abstract: Water samples were collected from the surface and the bottom of the water column at ten GCE-LTER sampling sites and from the surface of the water column during six transect surveys along the Altamaha River in October, 2001. Samples were taken at various times of day and under various tidal conditions. The particulate matter was separated by filtration and analyzed for elemental carbon and nitrogen content by CN analysis. This study was part of the GCE-LTER hydrographic monitoring program, and will be repeated quarterly.
DOI: 10.6073/pasta/819d1cd195d4ea6f900d68fd024a7235
Key Words: carbon, carbon to nitrogen ratio, Cruise Nutrient Sampling, nitrogen, nutrient cycles, organic carbon, organic nitrogen
LTER Core Area: Inorganic Matter
Research Themes: General Nutrient Chemistry, Organic Matter/Decomposition
Study Period: 10-Oct-2001 to 13-Oct-2001
Study Sites:
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
GCE-SP -- Sapelo River, Georgia, USA
GCE-DB -- Doboy Sound, Georgia, USA
GCE-AL -- Altamaha River, Georgia, USA
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Downloads: Information

Data Table: NUT-GCEM-0206 (Main data table for data set NUT-GCEM-0206, 45 records)

Access: Public (released 20-Jun-2003)

Metadata: Text (ESA FLED), XML (Ecological Metadata Language)

Data Formats: Spreadsheet (CSV) [7.11kb],  Text File [5.45kb],  MATLAB (GCE Toolbox) [183.04kb],  MATLAB (Variables) [158.44kb],  Text Report [39.59kb]

Column List:(hide)

Column Name Units Type Description
1 Date_Sampled yyyy-mm-dd string The date on which the sample was collected
2 Time_Sampled hh:mm GMT string Time at which the sample was collected (GMT)
3 Latitude degrees floating-point Latitude at which the sample was collected
4 Longitude degrees floating-point Longitude at which the sample was collected
5 Site none integer GCE-LTER sampling site or transect from which the sample was collected
6 Vessel none string The vessel from which the sample was collected
7 CTD_Cast none string The CTD cast taken immediately preceding sample collection
8 Depth_Sampled none string The depth at which the sample was collected (either surface or bottom of the water column)
9 Temperature °C floating-point The temperature of the water when the sample was collected
10 Flag_Temperature none string QA/QC flags for The temperature of the water when the sample was collected (flagging criteria, where "x" is Temperature: x<-1.5="I", x<10="Q", x>35="Q")
11 Salinity PSU floating-point The salinity of the water when the sample was collected
12 Flag_Salinity none string QA/QC flags for The salinity of the water when the sample was collected (flagging criteria, where "x" is Salinity: x<0="I", x>35="Q")
13 Tide none string The nominal tide state when the sample was collected (based on predicted tidal harmonics and qualitative observation)
14 Vial none integer The number of the vial into which the sample was placed and stored
15 Volume_Filtered ml floating-point The amount of water filtered for the sample
16 Flag_Volume_Filtered none string QA/QC flags for The amount of water filtered for the sample (flagging criteria, where "x" is Volume_Filtered: x<0="I")
17 Date_Processed yyyy-mm-dd string The date on which the sample was processed (i.e. run through the CN Analyzer)
18 Nitrogen_Mass µg floating-point The number of micrograms of nitrogen determined to be in the sample
19 Flag_Nitrogen_Mass none string QA/QC flags for The number of micrograms of nitrogen determined to be in the sample (flagging criteria, where "x" is Nitrogen_Mass: x<0="I", x<8.5="Q")
20 Carbon_Mass µg floating-point The number of micrograms of carbon determined to be in the sample
21 Flag_Carbon_Mass none string QA/QC flags for The number of micrograms of carbon determined to be in the sample (flagging criteria, where "x" is Carbon_Mass: x<0="I", x<8.5="Q")
22 Nitrogen_Conc µg/ml floating-point The number of micrograms of nitrogen per milliliter determined to be in the sample
23 Flag_Nitrogen_Conc none string QA/QC flags for The number of micrograms of nitrogen per milliliter determined to be in the sample (flagging criteria, where "x" is Nitrogen_Conc: x<0="I")
24 Carbon_Conc µg/ml floating-point The number of micrograms of carbon per milliliter determined to be in the sample
25 Flag_Carbon_Conc none string QA/QC flags for The number of micrograms of carbon per milliliter determined to be in the sample (flagging criteria, where "x" is Carbon_Conc: x<0="I")
26 CN_Ratio ratio floating-point The ratio of atomic carbon to atomic nitrogen determined to be in the sample
27 Flag_CN_Ratio none string QA/QC flags for The ratio of atomic carbon to atomic nitrogen determined to be in the sample (flagging criteria, where "x" is CN_Ratio: x<0="I")
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Alber, Merryl. 2002. October 2001 water column particulate carbon and nitrogen concentrations for Georgia Coastal Ecosystems LTER sampling sites. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/819d1cd195d4ea6f900d68fd024a7235

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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959, OCE-1237140 and OCE-1832178. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.