Unified Interior Regions

Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands)

Regions L2 Landing Page Tabs

Filter Total Items: 5,248
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Year Published: 2019

Interpretation of dye tracing data collected November 13–December 2, 2017, at the Savoy Experimental Watershed as part of the Advanced Groundwater Field Techniques in Karst Terrains course, Savoy, Arkansas

The first course on the use of advanced groundwater field techniques for karst aquifers was conducted November 13–17, 2017, at the University of Arkansas Savoy Experimental Watershed (SEW), which is located on pastures for beef livestock research conducted by the Department of Animal Sciences at the University of Arkansas at Savoy, Arkansas. The...

Kuniansky, Eve L.; Blackstock, Joshua M.; Wagner, Daniel M.; Brahana, J. Van
Kuniansky, E.L., Blackstock, J.M., Wagner, D.M., and Brahana, J.V., 2019, Interpretation of dye tracing data collected, November 13–December 2, 2017, at the Savoy Experimental Watershed as part of the Advanced Groundwater Field Techniques in Karst Terrains Course, Savoy, Arkansas: U.S. Geological Survey Scientific Investigations Report 2019–5016, 41 p., https://doi.org/10.3133/sir20195016.

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Year Published: 2019

Regional hydraulic geometry characteristics of stream channels in the Ouachita Mountains of Arkansas

Many stream channel infrastructure, habitat, and restoration projects are being undertaken on small streams throughout Arkansas by various Federal, State, and local agencies and by private organizations and businesses with limited data on local geomorphology and streamflow relations. Equations are needed that relate drainage area above stable...

Pugh, Aaron L.; Ronald K. Redman
Pugh, A.L., and Redman, R.K., 2019, Regional hydraulic geometry characteristics of stream channels in the Ouachita Mountains of Arkansas: U.S. Geological Survey Data Series 1104, 25 p., https://doi.org/10.3133/ds1104.

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Year Published: 2019

Microbiomes of stony and soft deep-sea corals share rare core bacteria

Background: Numerous studies have shown that bacteria form stable associations with host corals and have focused on identifying conserved “core microbiomes” of bacterial associates inferred to be serving key roles in the coral holobiont. Because studies tend to focus on only stony corals (order Scleractinia) or soft corals (order Alcyonacea), it...

Kellogg, Christina A.

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Year Published: 2019

Hydrogeologic characterization of part of the Lower Floridan aquifer at the South District Wastewater Treatment Plant, Miami-Dade County, Florida

The South District Wastewater Treatment Plant in southeastern Miami-Dade County, Florida, includes a Class I treated wastewater injection well system. The detection of ammonia in monitoring zones above the injection zone in the Lower Floridan aquifer has elicited a need to understand the nature of confinement within the Lower Floridan aquifer as...

DeFosset, Kevin L.; Cunningham, Kevin J.
DeFosset, K.L., and Cunningham, K.J., 2019, Hydrogeologic characterization of part of the Lower Floridan aquifer at the South District Wastewater Treatment Plant, Miami-Dade County, Florida: U.S. Geological Survey Open-File Report 2019–1034, 15 p., https://doi.org/10.3133/ofr20191034.

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Year Published: 2019

Water Resources of West Carroll Parish, Louisiana

Information concerning the availability, use, and quality of water in West Carroll Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, 21.27 million gallons per...

White, Vincent E.
White, V.E., 2019, Water resources of West Carroll Parish, Louisiana: U.S. Geological Survey Fact Sheet 2018–3069, 6 p., https://doi.org/10.3133/fs20183069.

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Year Published: 2019

Water resources of Morehouse Parish, Louisiana

Information concerning the availability, use, and quality of water in Morehouse Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, 109.84 million gallons per day...

White, Vincent E.
White, V.E., 2019, Water resources of Morehouse Parish, Louisiana: U.S. Geological Survey Fact Sheet 2018–3068, 6 p., https://doi.org/10.3133/fs20183068.

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Year Published: 2019

Ecological islands: Conserving biodiversity hotspots in a changing climate

For decades, botanists have recognized that rare plants are clustered into ecological “islands”: small and isolated habitat patches produced by landscape features such as sinkholes and bedrock outcrops. Insular ecosystems often provide unusually stressful microhabitats for plant growth (eg because of thin soils, high temperatures, extreme pH, or...

Cartwright, Jennifer M.

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Year Published: 2019

Application of sediment end-member analysis for understanding sediment fluxes, northern Chandeleur Islands, Louisiana

We analyzed grain-size distributions (GSDs) from a time-series of sediment samples to evaluate sediment transport following anthropogenic sand-berm emplacement at the northern Chandeleur Islands, Louisiana. End-member analysis (EMA) was applied to compare the end-member (EM) GSD of a known sediment source to GSDs from surrounding environments and...

Bernier, Julie C.; Miselis, Jennifer L.; Buster, Noreen A.; Flocks, James G.
Bernier, J.C., Miselis, J.L., Buster, N.A., and Flocks, J.G., 2019, Application of sediment end-member analysis for understanding sediment fluxes, northern Chandeleur Islands, Louisiana, in Wang, P., Rosati, J.D., and Vallee, M. (eds.), , Tampa/St. Petersburg, Florida, May 27-31, 2019: Singapore, World Scientific Publishing Co. Pte. Ltd., p. 25-38.

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Year Published: 2019

Surrogate model development for coastal dune erosion under storm conditions

Early coastal dune erosion predictions are essential to avoid potential flood consequences but most dune erosion numerical models are computationally expensive, hence their application in Early Warning Systems is limited. Here, based on a combination of optimally sampled synthetic sea storms with a calibrated and validated XBeach model, we develop...

Malagon-Santos, Victor; Wahl, Thomas; Long, Joseph W; Passeri, Davina; Plant, Nathaniel G.

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Year Published: 2019

Seeking shelter from the storm: Conservation and management of imperiled species in a changing climate

Climate change is anticipated to exacerbate the extinction risk of species whose persistence is already compromised by habitat loss, invasive species, disease, or other stressors. In coastal areas of the southeastern United States (USA), many imperiled vertebrates are vulnerable to hurricanes, which climate models predict to become more severe in...

Walls, Susan; Barichivich, William; Chandler, Jonathan; Meade, Ashley M.; Milinichik, Marysa; O'Donnell, Katherine; Owens, Megan E.; Peacock, Terry; Reinman, Joseph; Watling, Rebecca C.; Wetsch, Olivia E.

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Year Published: 2019

Impacts of saltwater intrusion on wetland prey production and composition in a historically freshwater marsh

Sea level rise is a fundamental driver of ecosystem change and has the potential to shift the spatial distributions of habitats more rapidly than species can adapt. Rapid sea level rise and associated saltwater intrusion have negative impacts on coastal environments, including loss of habitat for species such as sea turtles and shorebirds. In...

Romanach, Stephanie; Beerens, James M.; Patton, Brett; Chapman, Julia P.; Hanson, Matt

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Year Published: 2019

Simulation of groundwater flow in the Brunswick Area, Georgia, for 2004 and 2015, and selected groundwater-management scenarios

The Upper Floridan aquifer (UFA) is the principal water source for industrial and public supply in Glynn County, Georgia. Wells in active pumping centers that tap the UFA for industries near the city of Brunswick have created an upward hydraulic-head gradient in the Floridan aquifer system, which has allowed high chloride (saline) groundwater from...

Cherry, Gregory S.
Cherry, G.S., 2019, Simulation of groundwater flow in the Brunswick area, Georgia, for 2004 and 2015, and selected groundwater-management scenarios: U.S. Geological Survey Scientific Investigations Report 2019–5035, 70 p., https://doi.org/10.3133/sir20195035.

Filter Total Items: 500

Daylight and fluorescent images of a Orbicella faveolata

Daylight and fluorescen images of a Orbicella faveolata coral colony in Dry Tortugas National Park. In this colony, the GFP fluorescence is so intense that it overwhelms the weaker red fluorescence of chlorophyll. 

view of bridge from webcam

Peachtree Creek at Atlanta (02336300)

We have installed a webcam at the Peachtree Creek at Atlanta to allow you to view, in real time, the current river-stage conditions.

During periods of flooding, the South Atlantic Water Science Center - Georgia will take control of the camera.

Camera is sponsored by the USGS National Streamflow Information Program (

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Current view of the webcam

Briar Creek at Providence Road (02146449)

This camera is a part of the Flood Information and Notification System (FINS) network in Charlotte and Mecklenburg County, NC. The FINS network consists of 54 streamgages and 72 raingages. Most sites in the network are equipped with radio telemetry which log and transmit data in 5-minute intervals. Some sites outside of the City of Charlotte boundary are equipped with

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view of river from webcam

Sweetwater Creek 0.05 miles US RR Bridge, Austell (02336910)

We have installed a webcam at the Sweetwater Creek 0.05 miles US RR Bridge, Austell to allow you to view, in real time, the current river-stage conditions.

This webcam is located at site 02336910, which is near the Sweetwater Creek near Austell (02337000) water-monitoring site.

During periods of flooding, the South Atlantic Water Science Center - Georgia will

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Current view of the webcam

Little Hope Creek at Seneca Place (02146470)

This camera is a part of the Flood Information and Notification System (FINS) network in Charlotte and Mecklenburg County, NC. The FINS network consists of 54 streamgages and 72 raingages. Most sites in the network are equipped with radio telemetry which log and transmit data in 5-minute intervals. Some sites outside of the City of Charlotte boundary are equipped with

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