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GCE-LTER Project News

April 2018 Calendar

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Latest Data Releases

03/08/2018 – Data Release

Provisional SALTEx well logger monitoring data are available on the Project Data page through Feb. 14, 2018. The Schlumberger logger files were corrected for atmospheric pressure and sensor elevation for calculation of water level, and salinity and density were calculated from temperature and conductivity measurements.

03/03/2018 – Data Release

Three new data sets using mass spectrometry and other techniques to describe DOM composition in coastal and estuarine waters near Sapelo were added to the GCE Data Catalog by Patricia Medeiros.

ORG-GCED-1508: Dissolved Organic Matter Composition in Doboy Sound and the Altamaha River near Sapelo Island, Georgia in 2012-2013

ORG-GCED-1703: Microbially-Mediated Transformations of Estuarine Dissolved Organic Matter from Doboy Sound, Sapelo Sound and the Altamaha River near Sapelo Island, Georgia in 2012-2013

ORG-GCED-1801: Seasonal Evolution of Terrigenous Dissolved Organic Matter in the South Atlantic Bight off Georgia in 2014

02/17/2018 – Data Release

The data set PLT-GCET-1801 (Spartina alterniflora aboveground biomass patterns from Landsat 5 TM imagery (1984-2011) and external driver data used in multivariate analysis.) by John O'Donnell and John Schalles was added to the GCE Data Catalog. This data set is part of John O'Donnell's thesis work.

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Latest File Uploads

04/10/2018 – Presentation
Georgia Coastal Ecosystems LTER - Information Management Highlights (details)

04/10/2018 – Presentation
Georgia Coastal Ecosystems LTER - Information Management Overview (details)

03/14/2018 – Reprint (GCE only)
GCE-LTER Collected Reprint Library (details)

03/06/2018 – Document (GCE only)
Data availability report from the GCE IV renewal proposal, submitted to NSF in February 2018 (details)

03/06/2018 – Document (GCE only)
GCE IV renewal proposal, submitted to NSF in February 2018 (text only version) (details)

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GCE Project Announcements

04/06/2018 – Announcement

After a several month hiatus due to unresolved electrical problems on the dock, the UGAMI creek cam is back online once again and sending images. The latest image can be viewed on the GCE Current Conditions web page, and historic images can be browsed by year and month at http://gce-lter.marsci.uga.edu/ugami/creekcam/.

CreekCam photo

(contact Wade Sheldon for additional information)
03/27/2018 – Publication News

Recent work from the SALTEx experiment (Seawater Addition Long Term Experiment) demonstrates widespread changes in carbon (C) cycling when a tidal freshwater marsh is exposed to saltwater intrusion. In the paper "Differential effects of chronic and acute simulated seawater intrusion on tidal freshwater marsh carbon cycling" published in Biogeochemistry, Ellen Herbert, Joe Schubauer-berigan, and Chris Craft show that saltwater intrusion leads to reduced C fixation, ecosystem respiration, net ecosystem exchange and methane emissions in chronically dosed "Press" plots. "Pulse" plots - those dosed for two months in fall, by contrast, show little lasting effects of saltwater intrusion on C cycling. This manuscript is the first of a number of forthcoming papers that will come out of the experiment.   

(contact Chris Craft for additional information)
03/18/2018 – Publication News

McKenna Stahl and the Wetlands Lab at Indiana University published Tidal freshwater forests: Sentinels for climate change in Ecological Engineering. The paper concludes that, because they are not maintaining their elevation relative to sea level rise, many of these forests will succumb to saltwater intrusion and submergence.

Citation: Stahl, M., Widney, S. and Craft, C.B. 2018. Tidal freshwater forests: Sentinels for climate change. Ecological Engineering. 116:104-109. (DOI: 10.1016/j.ecoleng.2018.03.002)

(contact Chris Craft for additional information)
03/14/2018 – Publication News

The GCE Collected Reprint Library has now been updated to include publications submitted to the GCE Bibliography through February 2018. This archive contains 375 reprints of published work supported by the GCE-LTER research program, including journal articles, book chapters, PhD dissertations, and MS/MA theses. The archive can be browsed online from the private GCE website, or downloaded to your computer as a Zip archive. Note that online distribution is limited to GCE participants, but partner organizations can request an offline copy on CD.

(keep reading)

(contact Wade Sheldon for additional information)
03/06/2018 – Announcement

The GCE-IV renewal proposal was submitted to NSF on 3/2/2018. The proposal lays out our research program for the next six years (2018-2024). The research we are proposing is focused on disturbance responses in intertidal marshes and how it relates to external drivers. Our specific goals are to:

(keep reading)

(contact Merryl Alber for additional information)
03/01/2018 – Personnel News

As many of you know, part of the GCE’s core monitoring effort involves an annual survey of the inverts at the core GCE sites.  This survey results in the collection of thousands of snails and mussels.  Each year these organisms are identified to species, measured for length, enumerated, and then preserved in alcohol for long-term storage.   Andy has been volunteering to come down to Sapelo almost monthly and work for days at a time on processing these samples over the last two years.  He has spent countless hours rinsing the field samples and looking through a microscope to measure the inverts.  

(keep reading)

(contact Jacob Shalack for additional information)

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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959 and OCE-1237140. 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.