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GCE-LTER Data Set Summary

Accession: NUT-GCEM-1909 Research Theme: General Nutrient Chemistry (Monitoring)
Contributors: Merryl Alber, Jack Sandow, Joan Sheldon, Adam Sapp
Title: Long-term water quality monitoring in the Altamaha River near Doctortown, Georgia from January 2013 to December 2022.
Abstract: Water samples were collected monthly on the Atlamaha River near Doctortown, Georgia. The samples were anlayzed for dissolved organics (carbon, nitrogen, phosphorus), dissolved nutrients (ammonium, nitrite, nitrate, phosphate, silicate) and particulate carbon and nitrogen. Concentrations of the following were measured using standard analytical methods: dissolved nutrients (phosphate, nitrate+nitrite, ammonium, silicate), dissolved organics (carbon, nitrogen, phosphorus) and particulate carbon and nitrogen
DOI: 10.6073/pasta/1df6f64d4cf2f9f86a79c1ebf6fc23a7
Key Words: Altamaha River, ammonia, carbon to nitrogen ratio, dissolved nutrients, dissolved organic carbon, estuaries, GCE, Georgia, nitrate, nitrite, phosphate, Sapelo Island, total nitrogen, USA, water quality
LTER Core Area: Inorganic Matter, Organic Matter
Research Themes: GCE2 Q1 - External Forcing, GCE3 Area2 - Patterns within the Domain, General Nutrient Chemistry, Chemistry, Organic Matter/Decomposition, Phytoplankton Productivity
Study Period: 01-Jan-2013 to 31-May-2022
Study Sites:
ALT-BASIN -- Altamaha River basin, Georgia, USA
» Download Geographic Coverage: Google Earth
Project References: Altamaha river water chemistry monitoring, Altamaha watershed water quality
Research Protocols:

SIEL Protocol for colorimetric analysis of ammonium (UGA Stable Isotope Ecology Laboratory)

SIEL protocol for colorimetric analysis of Nitrate-Nitrite Nitrogen from EPA Method 353.2 (UGA Stable Isotope Ecology Laboratory)

SIEL Protocol for colorimetric analysis of phosphate (UGA Stable Isotope Ecology Laboratory)

Persulfate Digest for Water Total Nitrogen and Total Phosphorous (UGA Stable Isotope Ecology Laboratory)
Downloads: Information

Data Table: NUT-GCEM-1909 (Main data table for data set NUT-GCEM-1909, 162 records)

Access: Public (released 20-Aug-2019)

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

Data Formats: Spreadsheet (CSV) [34.13kb],  Text File [28.55kb],  MATLAB (GCE Toolbox) [43.23kb],  MATLAB (Variables) [46.65kb],  Text Report [57.28kb]

Column List:(hide)

Column Name Units Type Description
1 Date yyyy-mm-dd string Date of Sample Collection
2 Time HH:MM:SS string Time of sample collection
3 Station none string GCE Sampling Station ID
4 Location none string Sampling Location
5 Sampling_Platform none string Platform from which the sample was taken
6 Water_Temperature C floating-point Temperature of surface water at time of sampling
7 River_Stage ft floating-point River stage at time of sampling
8 Trend none string Which way the river stage is trending
9 Sampling_Notes none string Notes from sample log
10 Phosphate ppb floating-point Phosphate as P
11 Flag_Phosphate none string QA/QC flags for Phosphate as P
12 Total_Phosphorus ppb floating-point Total Phosphurus as PO4-P
13 Flag_Total_Phosphorus none string QA/QC flags for Total Phosphurus as PO4-P
14 Dissolved_​Organic_​Phosphorus ppb floating-point Dissolved Organic Phosphate as P
15 Flag_​Dissolved_​Organic_​Phosphorus none string QA/QC flags for Dissolved Organic Phosphate as P
16 Nitrate ppb floating-point Nitrate as N
17 Flag_Nitrate none string QA/QC flags for Nitrate as N
18 Total_Nitrogen ppm floating-point Total Nitrogen as NO3-N
19 Flag_Total_Nitrogen none string QA/QC flags for Total Nitrogen as NO3-N
20 Dissolved_​Organic_​Nitrogen ppm floating-point Dissolved Organic Nitrogen as N
21 Flag_​Dissolved_​Organic_​Nitrogen none string QA/QC flags for Dissolved Organic Nitrogen as N
22 Dissolved_Organic_Carbon ppm floating-point Dissolved Organic Carbon as C
23 Flag_​Dissolved_​Organic_​Carbon none string QA/QC flags for Dissolved Organic Carbon as C
24 Ammonium ppb floating-point Ammonium as N
25 Flag_Ammonium none string QA/QC flags for Ammonium as N
26 Silicate uM floating-point Silicate concentration
27 Flag_Silicate none string QA/QC flags for Silicate concentration
28 Particulate_Carbon mg/L floating-point Particulate Carbon concentation(average of replicates)
29 Flag_Particulate_Carbon none string QA/QC flags for Particulate Carbon concentation(average of replicates)
30 Particulate_Nitrogen mg/L floating-point Particulate Nitrogen concentration(average of replicates)
31 Flag_Particulate_Nitrogen none string QA/QC flags for Particulate Nitrogen concentration(average of replicates)
32 PC_PN_ratio none floating-point Particulate carbon to particulate nitrogen ratio
33 PC_PN_notes none string Notes from PCON sample analysis
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Alber, Merryl. 2019. Long-term water quality monitoring in the Altamaha River near Doctortown, Georgia from January 2013 to December 2022. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/1df6f64d4cf2f9f86a79c1ebf6fc23a7

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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.