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GCE-LTER Project News

June 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

04/27/2018 – Logo image
Official NSF logos web page (details)

04/27/2018 – Logo image
Official LTER logos web page (details)

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

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

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GCE Project Announcements

06/07/2018 – Personnel News

Some of you met Wenwen Liu, a visiting scholar (PhD student) from Xiamen University in China, when he visited Sapelo last year. He is back this summer, working with Steve Pennings. Wenwen's PhD research focuses on latitudinal gradients in Spartina alterniflora morphology and reproduction in the the US (native range) and China (where it is introduced). This summer, he's working on an exciting manuscript on Spartina allometry and reproduction based on our last 15 years of fall monitoring data.

(keep reading)

(contact Steve Pennings for additional information)
06/05/2018 – Personnel News

Taivon Watkins is an undergraduate at Georgia Southern University, majoring in computer science. He's working with the GCE LTER this summer helping us graph a lot of data related to the past two hurricanes. Our ultimate goal is to write a paper using GCE data about hurricane effects on the GA coast.

Taivon Watkins

(contact Steve Pennings for additional information)
06/04/2018 – Personnel News

Evvan Croll and Will Van Brackle are on the island for the summer working in the Pennings lab. Evvan just graduated from the University of Houston. Will is an undergrad at the University of Georgia. They will be sampling the high marsh experiment, Saltex, and other experiments.

Evvan Croll and Will Van Brackle

(contact Steve Pennings for additional information)
05/31/2018 – Personnel News

John Schalles is on Sapelo with a class, and Steve is on the island for the summer research season. As you can see by their clothing, working with the LTER has caused their thinking about life to converge. Speaking of which, Merryl, isn't it time for a GCE tee shirt?

Schalles and Pennings twins 2018 5

(contact Steve Pennings for additional information)
05/31/2018 – Personal Observation

Upon returning to Sapelo Island for the summer, I was curious how the salt marsh vegetation had responded to hurricane Irma. Just walking along the edge of the marsh, it seems as if the high marsh vegetation (Borrichia and Iva) are doing better than they have in years. Borrichia seems unusually vigorous and green, and is flowering heavily. Iva is producing stands of new seedlings--this is something you can see every year in New England, but that I have never seen before in 23 years working at Sapelo Island. I always wondered "how do new plants get established if there are never any seedlings?" Well, there are a lot now.  I don't know the mechanism, but the storm surge presumably brought a lot of salt water into the sandy soils along the marsh edge, and at the same time killed off a lot of the more delicate upland vegetation, so perhaps some combination of marine nutrients and reduced competition is benefitting these plants.

(keep reading)

(contact Steve Pennings for additional information)
05/31/2018 – Personal Observation

I just returned to Sapelo and was curious what the beach would look like 7 months after hurricane Irma. The dunes remain diminished, but are starting to rebuild in many places. The front line of woody vegetation in the dunes is dead, with dead shrubs and trees extending back perhaps 100 m into the dunes. The hurricane also seemed to have killed vast numbers of olive snails, because a short walk on the beach yielded several dozen shells whereas I usually only see one per hour.

(keep reading)

(contact Steve Pennings 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.