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GCE-LTER Data Set Summary

Accession: MSH-GCET-2302 Research Theme: Marsh Ecology (Graduate Thesis Study)
Contributors: Lishen Mao, Deepak Mishra, Peter Hawman, Caroline Narron, Jessica O'Connell, David Cotten
Title: Pulse amplitude modulated (PAM) 5-minute chlorophyll fluorescence (ChlF) with accompanying environmental variables from the GCE-LTER Keenan Field site on Sapelo Island, GA in July 2020
Abstract: Pulse amplitude modulated (PAM) chlorophyll fluorescence (ChlF) from July 11, 2020 to July 27, 2020 collected over a Spartina alterniflora marsh located on the western side of Sapelo Island bounded by the Duplin River. PAM ChlF were processed in WinControl-3.25. Additional biophysical variables included are photosynthetically active radiation (PAR) from onsite quantum sensors (Licor-192), and tide height from an onsite pressure transducer (Hobo U20).
DOI: 10.6073/pasta/93dad8f2c88a1f6b40cef5ed45724acf
Key Words: chlorophyll, Duplin River, fluorescence, photosynthesis, Plant Monitoring, Pulse amplitude modulated (PAM) fluorometry, salt marshes, Sapelo Island, Spartina alterniflora
LTER Core Area: Primary Production
Research Themes: Marsh Ecology
Study Period: 11-Jul-2020 to 27-Jul-2020
Study Sites:
GCE_Flux -- GCE Flux Tower Marsh, Sapelo Island, Georgia
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Data Table: MSH-GCET-2302 (Main data table for data set MSH-GCET-2302, 4897 records)

Access: Public (released 09-Feb-2023)

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

Data Formats: Spreadsheet (CSV) [343.08kb],  Text File [342.75kb],  MATLAB (GCE Toolbox) [124.58kb],  MATLAB (Variables) [123.77kb],  Text Report [380.14kb]

Column List:(hide)

Column Name Units Type Description
1 Date YYYY-MM-DD string Calendar date of observation
2 Time hh:mm:ss string Calendar time of observation
3 TOC_PAR umol/m2/s floating-point Photosynthetically active radiation measured at the top of the canopy
4 BOC_PAR umol/m2/s floating-point Photosynthetically active radiation measured at the bottom of the canopy
5 TOC_F none floating-point ChlF measured from leaves at the top of the canopy
6 TOC_Fm none floating-point Maximum ChlF measured from leaves at the top of the canopy
7 TOC_PSII none floating-point PSII operating efficiency for leaves at top the canopy
8 BOC_F none floating-point ChlF measured from leaves at the bottom of the canopy
9 BOC_Fm none floating-point Maximum ChlF measured from leaves at the bottom of the canopy
10 BOC_PSII none floating-point PSII operating efficiency for leaves at the bottom of the canopy
11 Tide_Level meters floating-point Tide level above the soil surface
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Mao, Lishen. 2023. Pulse amplitude modulated (PAM) 5-minute chlorophyll fluorescence (ChlF) with accompanying environmental variables from the GCE-LTER Keenan Field site on Sapelo Island, GA in July 2020. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/93dad8f2c88a1f6b40cef5ed45724acf

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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.