Duplin River flow measurements in collaboration with CCU groundwater surveys Dr. Daniela Di Iorio University of Georgia

Dept. of Marine Sciences University of Georgia Athens Georgia 30602-3636 USA

daniela@uga.edu http://www.marsci.uga.edu/directory/daniela-di-iorio Georgia Coastal Ecosystems LTER Project

Dept. of Marine Sciences University of Georgia Athens Georgia 30602-3636 USA

gcelter@uga.edu https://gce-lter.marsci.uga.edu/ Dr. Daniela Di Iorio University of Georgia

Dept. of Marine Sciences University of Georgia Athens Georgia 30602-3636 USA

daniela@uga.edu http://www.marsci.uga.edu/directory/daniela-di-iorio Principal investigator Dr. Richard N. Peterson Coastal Carolina University

Center for Marine and Wetland Studies 1270 Atlantic Avenue, Room 111 Coastal Carolina University Conway South Carolina 29526 USA

rpeters2@coastal.edu Co-investigator Dr. Richard F. Viso Coastal Carolina University

Center for Marine and Wetland Studies 1270 Atlantic Avenue Coastal Carolina University Conway South Carolina 29526 USA

rviso@coastal.edu http://ww2.coastal.edu/rviso/ Co-investigator 2026

We would like to deploy three bottom mount frames with oceanographic equipment, using the RV Spartina, that will be used to monitor the discharge, temperature and salinity characteristics at three locations along the Duplin River of Sapelo Island: Marsh Landing, Lumber landing and Hunt dock regions. Frames will be submerged in the center of the channel at the bottom at depths of ~5m. A surface buoy will mark the location of the moorings. The moorings will be left in place for approximately 6 weeks and will have a surface float as a marker. The Duplin River is part of the Sapelo Island National Estuarine Research Reserve.

Question 2: How do the spatial and temporal patterns of biogeochemical processes, primary production, community dynamics, decomposition, and disturbance vary across the estuarine landscape, and how do they relate to environmental gradients? (more information)

water column/neritic depth pressure salinity temperature water flow LTER NSF GCE physical oceanography Overall geographic extent of the research project -81.301987 -81.263124 31.486493 31.410854 2012-03-12 2012-04-30

GCE-LTER, NSF, $3K

estuary marsh complex Duplin River - Duplin River transect used for GCE quarterly hydrographic monitoring surveys. Nominal profiling stations are defined at various locations along the Duplin River west of Sapelo Island, Georgia. -81.301987 -81.263124 31.486493 31.410854 Map (Google Earth KML/KMZ or map image) https://gce-lter.marsci.uga.edu/private/registration/files/maps/GCE-23-2012_Maps_DuplinMoorings.jpg Map (Google Earth KML/KMZ or map image) https://gce-lter.marsci.uga.edu/private/registration/files/maps/GCE-23-2012_Maps_Hunt_Dock.kmz Map (Google Earth KML/KMZ or map image) https://gce-lter.marsci.uga.edu/private/registration/files/maps/GCE-23-2012_Maps_Lumber_Landing.kmz Map (Google Earth KML/KMZ or map image) https://gce-lter.marsci.uga.edu/private/registration/files/maps/GCE-23-2012_Maps_Marsh_Landing.kmz

Along the Duplin River

Each mooring will have a bottom mount frame, which will house an acoustic Doppler current profiler and a conductivity-temperature-depth (CTD) sensor, and a surface CTD with a surface buoy.

McKnight, C.J. 2016. A modelling study of horizontal transport and residence time in the Duplin River estuary, Sapelo Island GA. M.S. Thesis. University of Georgia, Athens, GA.