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GCE-LTER Data Set Summary

Accession: MSH-GCED-1904 Research Theme: Marsh Ecology (Directed Study)
Contributors: Merryl Alber, Jessica O'Connell
Title: Continuous soil temperature measurements at 10 cm depth from 3 month-long deployments in summer and winter within the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) site in 2017 and 2018
Abstract: To understand the influence of marsh elevation and flooding on soil temperature in Spartina alterniflora marsh, we measured soil temperature at 10 cm depth along two transects that spanned a marsh edge to interior gradient. We then associated those measurements with elevation, creek water height and vegetation characteristics. Soil temperature was logged every 15 min with a Hobo Onset Tidbit Pendant Temperature probe in Spartina alterniflora-dominated marsh near the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) eddy covariance flux tower. Measurements were collected along two transects of approximately 250 m in length from 18 plots (transect 1) or 20 plots (transect 2) and over 3 sample deployments of approximately 1 month in length: 27 Jul - 31 Aug 2017 (transect 1), 8 Jan - 13 Feb 2018 (transect 1) and 23 Aug - 18 Sep 2018 (transect 2). Plot elevations along each transect were measured with a Trimble R6 RTK after probes were installed in the marsh. Creek water heights were estimated with the pressure transducer associated with the GCE-LTER eddy covariance flux tower data. Spartina alterniflora height forms were measured for each sample station during August as the mean of all stem heights within 0.25 m quadrants centered over each soil probe location. While these data are 24 hr soil temperature measurements, during all three deployments, we found that daily mean soil temperature was negatively correlated with marsh elevation on the marsh platform during low tide conditions, which represented the majority of the observations.
DOI: 10.6073/pasta/db52896274df333805f2043efb7e5710
Key Words: Climate Monitoring, elevation, GCE, Georgia, monthly, roots, salt marshes, Sapelo Island, soil temperature, soils, summer, temperature, wetlands, winter
LTER Core Area: Other Site Research
Research Themes: Marsh Ecology
Study Period: 27-Jul-2017 to 18-Sep-2018
Study Sites:
GCE_Flux -- GCE Flux Tower Marsh, Sapelo Island, Georgia
» Download Geographic Coverage: Google Earth
Downloads: Information

Data Table: MSH-GCED-1904_soil_temp (Soil temperature data table, 169643 records)

Access: Public (released 24-Apr-2019)

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

Data Formats: Spreadsheet (CSV) [17043.92kb],  Text File [16711.89kb],  MATLAB (GCE Toolbox) [2570.54kb],  MATLAB (Variables) [2571.80kb],  Text Report [17784.87kb]

Column List:(display)

GIS Keyhole Markup Language File: MSH-GCED-1904_tidbit_transect_locations (locations of soil temperature samples)

Access: Public (released 24-Apr-2019)

Metadata: XML (Ecological Metadata Language)

Data Formats: Google Earth Keyhole Markup Language (KML) file [19.7 kb]

Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Alber, Merryl. 2019. Continuous soil temperature measurements at 10 cm depth from 3 month-long deployments in summer and winter within the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) site in 2017 and 2018. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/db52896274df333805f2043efb7e5710

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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.