GCE Announcements

  • Oct 16, 2014:  Monitoring Program
    Fall monitoring is underway. Representatives from several labs are monitoring soil, plants and invertebrates at the core GCE sites. We're up to 15 years of data for some of these measurements, so it is becoming a wonderful time series. (more)
  • Oct 09, 2014:  Monitoring Program
    Interruption to Marsh Landing weather station real-time data access (more)
  • Sep 17, 2014:  Data Release
    Provisional CTD profile data and plots from September 2014 are now online (access restricted to GCE members) (more)

All GCE News / GCE Calendar

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Sapelo Island Conditions

Marsh Landing Tide Predictions:

Saturday, October 25, 2014
Low: 3:40 AM (0.09m)
High: 9:44 AM (2.50m)
Low: 4:18 PM (0.12m)
High: 9:59 PM (2.29m)

Hudson Creek Weather:

(past 7 days - click plot to enlarge)
Hudson Creek  Weather Graph
Plot legend

Hudson Creek Hydrograph:

(past 7 days - click plot to enlarge)
Hudson Creek Hydrographic Conditions Graph
Plot legend

More Site Conditions:
Current conditions page
GCE Data Portal
Custom tide tables

Welcome to the Georgia Coastal Ecosystems LTER

The Georgia Coastal Ecosystems Long Term Ecological Research site (GCE) was established by the National Science Foundation in 2000. The study domain encompasses three adjacent sounds (Altamaha, Doboy, Sapelo) on the coast of Georgia, U.S.A., and includes upland (mainland, barrier islands, marsh hammocks), intertidal (fresh, brackish and salt marsh) and submerged (river, estuary, continental shelf) habitats.

Study site map

Patterns and processes in this complex landscape vary spatially within and between sites, and temporally on multiple scales (tidal, diurnal, seasonal, and inter-annual). Overlain on this spatial and temporal variation are long-term trends caused by climate change, sea level rise, and human alterations of the landscape. These long-term trends are likely to manifest in many ways, including changes in water quality, river discharge, runoff and tidal inundation patterns throughout the estuarine landscape.

Research Context

Over the coming decades, the Georgia coast is expected to experience substantial changes due to factors such as climate change, sea level rise, and human alterations of the landscape. The overarching goal of the GCE LTER is to understand the mechanisms by which variation in the quality, source and amount of both fresh and salt water create temporal and spatial variability in estuarine habitats and processes, in order to predict directional changes that will occur in response to long-term shifts in estuarine salinity patterns.

Transformational Science

Since the GCE-LTER program began in 2000, our research has contributed significantly to understanding patterns and processes that shape estuarine and marsh environments. Some examples of key findings resulting from GCE research are described on the Transformational Science page, and our conceptual model and research questions are described in more detail on the Research Program page of our web site. A list of Signature Publications that reflect that broader goals of the GCE-LTER research program are also available online.

Program Information

The GCE field site is based at the University of Georgia Marine Institute on Sapelo Island, and the program is administered at the University of Georgia Department of Marine Sciences in Athens, Georgia. Over 60 participants, representing 14 academic institutions and agencies, are currently involved in GCE research and educational programs. The GCE Information Management System provides online access to hundreds of core data sets, ancillary data sets from partner agencies, a searchable document and imagery archive, and a searchable bibliography of over 1400 publications from 50 years of research on the Georgia coast and Sapelo Island.

LTER
NSF

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.