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: 365
Date published: August 2, 2018
Status: Active

Integrating Science and Management for Optimal Prevention and Control of Invasive Nymphoides in Florida

Two invasive species of floating hearts, Nymphoides cristata and N. indica, are actively managed in Florida. A rare native species, N. humboldtiana, has been found in Florida and verified by molecular methods; this species is nearly indistinguishable from N. indica.

Date published: August 1, 2018
Status: Active

Piedmont Geology Along the Southeastern Fall Zone, Virginia and North Carolina

This task within the USGS NCGMP Piedmont-Blue Ridge Project aims to fill the void in geologic map coverage along the Fall Zone in southeastern Virginia and northeastern North Carolina, and forge strong cooperative ties within the NCGMP by combining resources across all three Program components by supporting DMME and NCGS STATEMAP and UNC–W EDMAP components with targeted geologic mapping and...

Contacts: Mark W Carter
Date published: August 1, 2018
Status: Active

Wetland Forest Regeneration Dynamics and Productivity in Southeastern Cypress Swamp Ecosystems

Relict forests (i.e., forests unable to reestablish after disturbance) may develop in the southeastern U.S. in future predicted extreme climates of temperature, flooding, and drought, according to the International Panel on Climate Change.

Date published: July 23, 2018
Status: Active

Toro Negro, Puerto Rico

The USGS has installed instruments in a steep hillside northwest of the municipality of Villalba in the Toro Negro State Forest.

Contacts: Ben Mirus
Date published: July 23, 2018
Status: Active

Utuado, Puerto Rico

The USGS has installed instruments in a steep hillside east of the municipality of Utuado.

Contacts: Ben Mirus
Date published: July 19, 2018
Status: Active

Appalachian Basin Oil and Gas Assessments

The USGS has conducted numerous assessments of undiscovered oil and gas in the Appalachian Basin, including studies of the Marcellus Shale. The region extends from Alabama to Maine. The following is an overview of the assessments.

    Date published: July 18, 2018
    Status: Active

    Flood-Inundation mapping in Georgia, North and South Carolina

    The U.S. Geological Survey (USGS) has created flood-inundation maps for selected streamgage sites in Georgia, North and South Carolina. These maps depict the approximate area that would be inundated at selected water levels, ranging from approximately top-of-bank to the maximum observed water level. The inundated areas depicted on these maps are approximate, and accuracy of the maps is a...

    Date published: July 12, 2018
    Status: Active

    River WebCams of the South Atlantic Water Science Center (Georgia, North and South Carolina)

    We have installed webcams at a number of locations in Georgia, North Carolina, and South Carolina to allow you to view, in real time, the current river-stage conditions. The Georgia and South Carolina cameras allow users to temporarily control the tilt, pan, and zoom. During periods of flooding, the South Atlantic Water Science Center might take control of the camera.

    Date published: June 19, 2018
    Status: Active

    Mineral Resource Assessment of U.S. Territories of the Caribbean Basin Archipelago including Puerto Rico, U.S. Virgin Islands and Adjacent Areas

    Project objectives are to develop a modern probabilistic quantitative mineral resource assessment of Puerto Rico, U.S. Virgin Islands and adjacent geologically similar areas that examines the potential for minerals-based economic development and trade within the region.

    Contacts: Floyd Gray
    Date published: June 14, 2018
    Status: Completed

    Hurricane Matthew: Flood Resources and Tools

    During and after Hurricane Matthew, the USGS made flood-flow measurements, maintained streamgages, deployed over 390 instruments, and developed geospatial products to measure and communicate the extent of coastal and inland flooding.

    Date published: June 11, 2018
    Status: Active

    Past and Future Modeling of Ecological Indicators for the South Atlantic Landscape Conservation Cooperative

    The South Atlantic Landscape Conservation Cooperative (LCC) has developed a Conservation Blueprint: a “living spatial plan to conserve natural and cultural resources for future generations.” This blueprint is a data-driven plan based on terrestrial, freshwater, marine, and cross-ecosystem indicators to measure the overall health of South...

    Date published: June 8, 2018
    Status: Active

    Geographic Information System and Remote Sensing Support: Gulf Coast Joint Venture

    The Gulf Coast Joint Venture (GCJV) was established in 1988 as a result of the North American Waterfowl Management Plan, which espouses the restoration of continental waterfowl populations through conservation partnerships in priority habitat regions. Since that time GCJV partners have expanded their mission and purpose to include the provision of habitat to support other priority bird species...

    Filter Total Items: 5,251
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    Year Published: 2020

    Stress gradients interact with disturbance to reveal alternative states in salt marsh: Multivariate resilience at the landscape scale

    Stress gradients influence many ecosystem processes and properties, including ecosystem recovery from and resistance to disturbance. While recent analytical approaches have advanced multivariate metrics of ecosystem resilience that allow quantification of conceptual resilience models and identification of thresholds of state change, these...

    Jones, Scott; Stagg, Camille; Yando, Erik S.; James, W. Ryan; Buffington, Kevin J.; Hester, Mark W.

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    Year Published: 2020

    Council monitoring and assessment program (CMAP): A framework for using the monitoring program inventory to conduct gap assessments for the Gulf of Mexico Region

    Executive Summary Under the Resources and Ecosystem Sustainability, Tourist Opportunities, and Revived Economies of the Gulf Coast States Act of 2012 (RESTORE Act), the Gulf Coast Ecosystem Restoration Council (RESTORE Council or Council) is required to report on the progress of funded projects and programs. Systematic monitoring of restoration at...

    Bosch, Julie; Burkart, Heidi B; Chivoiu, Bogdan; Clark, Randy; Clement, Chris; Enwright, Nicholas; Giordano, Steve; Jeffrey, Chris; Johnson, Ed; Hart, Rheannon; Hile, Sarah D; Howell, Jacob S; Laurenzano, Claudia; Lee, Michael; McCloskey, Terrance; McTigue, Terry; Meyers, Michelle B; Miller, Katie E; Mize, Scott; Monaco, Mark E.; Owen, Kevin; Rebich, Richard; Rendon, Samuel H.; Robertson, Ali; Sample, Thomas; Sanks, Kelly Marie; Steyer, Gregory; Suir, Kevin; Swarzenski, Christopher M.; Thurman, Hana Rose

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    Year Published: 2020

    Topographic, soil, and climate drivers of drought sensitivity in forests and shrublands of the Pacific Northwest, USA

    Climate change is anticipated to increase the frequency and intensity of droughts, with major impacts to ecosystems globally. Broad-scale assessments of vegetation responses to drought are needed to anticipate, manage, and potentially mitigate climate-change effects on ecosystems. We quantified the drought sensitivity of vegetation in the Pacific...

    Cartwright, Jennifer M.; Littlefield, Caitlin E; Michalak, Julia; Lawler, Joshua J.; Dobrowski, Solomon

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    Year Published: 2020

    Detecting cover crop end-of-season using VENµS and sentinel-2 satellite imagery

    Cover crops are planted during the off-season to protect the soil and improve watershed management. The ability to map cover crop termination dates over agricultural landscapes is essential for quantifying conservation practice implementation, and enabling estimation of biomass accumulation during the active cover period. Remote sensing detection...

    Gao, Feng; Anderson, Martha; Hively, W. Dean

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    Year Published: 2020

    Evaluation of the U.S. Geological Survey streamgage network in South Carolina, 2017

    The U.S. Geological Survey (USGS) has been monitoring streamflow in South Carolina since the late 1800s. From the beginning, the USGS streamgage network in South Carolina has been dynamic, with streamgages being added or removed depending on their purpose and the availability of funding from Federal, State, and local partners. Streamflow...

    Feaster, Toby D.; Kolb, Katharine R.
    Feaster, T.D., and Kolb, K.R., 2020, Evaluation of the U.S. Geological Survey streamgage network in South Carolina, 2017: U.S. Geological Survey Open-File Report 2020–1104, 15 p., https://doi.org/10.3133/ofr20201104.

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    Year Published: 2020

    Double exposure and dynamic vulnerability: Assessing economic well-being, ecological change and the development of the oil and gas industry in coastal Louisiana

    The oil and gas industry has been a powerful driver of economic change in coastal Louisiana for the latter half of the 20th century and into the 21st. Yet, the overall impact of the industry on the economic well-being of host communities is varied, both spatially and temporally. While the majority of Louisiana’s oil and gas production now occurs...

    Hemmerling, Scott; Carruthers, Tim J.B.; Hijuelos, Ann; Bienn, Harris C.

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    Year Published: 2020

    Predicting multi-species foraging hotspots for marine turtles in the Gulf of Mexico

    Quantifying the distribution of animals and identifying underlying characteristics that define suitable habitat are essential for effective conservation of free-ranging species. Prioritizing areas for conservation is important in managing a geographic extent that has a high level of disturbance and limited conservation resources. We examined the...

    Fujisaki, Ikuko; Hart, Kristen; Bucklin, David N.; Iverson, Autumn R.; Rubio, Cynthia; Lamont, Margaret; Miron, Raul de Jesus G.D.; Burchfield, Patrick M.; Pena, Jaime; Shaver, Donna J.

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    Year Published: 2020

    Sensitivity of storm response to antecedent topography in the XBeach model

    Antecedent topography is an important aspect of coastal morphology when studying and forecasting coastal change hazards. The uncertainty in morphologic response of storm-impact models and their use in short-term hazard forecasting and decadal forecasting is important to account for when considering a coupled model framework. This study provided a...

    Mickey, Rangley C.; Dalyander, P. Soupy; McCall, Robert T.; Passeri, Davina

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    Year Published: 2020

    An interactive data visualization framework for exploring geospatial environmental datasets and model predictions

    With the rise of large-scale environmental models comes new challenges for how we best utilize this information in research, management and decision making. Interactive data visualizations can make large and complex datasets easier to access and explore, which can lead to knowledge discovery, hypothesis formation and improved understanding. Here,...

    Walker, Jeffrey D; Letcher, Benjamin; Rodgers, Kirk D.; Muhlfeld, Clint C.; D'Angelo, Vincent S.

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    Year Published: 2020

    Estimated groundwater withdrawals from principal aquifers in the United States, 2015

    In 2015, about 84,600 million gallons per day (Mgal/d) of groundwater were withdrawn in the United States for various uses including public supply, self-supplied domestic, industrial, mining, thermoelectric power, aquaculture, livestock, and irrigation. Of this total, about 94 percent (79,200 Mgal/d) was withdrawn from principal aquifers, which...

    Lovelace, John K.; Nielsen, Martha G.; Read, Amy L.; Murphy, Chid J.; Maupin, Molly A.
    Lovelace, J.K., Nielsen, M.G., Read, A.L., Murphy, C.J., and Maupin, M.A., 2020, Estimated groundwater withdrawals from principal aquifers in the United States, 2015 (ver. 1.2, October 2020): U.S. Geological Survey Circular 1464, 70 p., http://doi.org/10.3133/cir1464.

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    Year Published: 2020

    Changes in ecosystem nitrogen and carbon allocation with black mangrove (Avicennia germinans) encroachment into Spartina alterniflora salt marsh

    Increases in temperature are expected to facilitate encroachment of tropical mangrove forests into temperate salt marshes, yet the effects on ecosystem services are understudied. Our work was conducted along a mangrove expansion front in Louisiana (USA), an area where coastal wetlands are in rapid decline due to compounding factors, including...

    Macy, Aaron; Osland, Michael; Cherry, Julia A; Cebrian, Just

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    Year Published: 2020

    Growth rates for immature Kemp’s ridley sea turtles from a foraging area in the northern Gulf of Mexico

    Examining vital rates helps clarify how environmental characteristics, biological resources and human activities affect population growth. Carapace lengths were gathered for 241 Kemp’s ridley Lepidochelys kempii sea turtles that were marked and recaptured (n = 23) between 2011 and 2019 at a foraging location in northwest Florida, USA....

    Lamont, Margaret; Johnson, Darren

    Filter Total Items: 500
    A hydrographer kneels in water to measure a high water mark on a wall.
    September 18, 2018

    Measuring a high water mark as flooding recedes

    USGS hydrographer Kyle Marchman measures a high water mark on the rear wall of a Kangaroo gas station on Highway 24 north of Fayetteville, NC on Sept. 18, 2018, after flooding caused by Hurricane Florence.

    USGS intern James Stonecypher measures Lumber River floodwaters
    September 17, 2018

    Measuring the Lumber River floodwaters

    James Stonecypher measures flood waters from the Lumber River that breached a dam in Lumberton, North Carolina after the passage of Hurricane Florence, Sept. 17, 2018. 

    Map of USGS streamgages at or over flood stage in NC Sept. 19, 2018
    September 16, 2018

    As Florence rains, rivers keep rising, submerging some USGS instrument

    A WaterWatch web map shows streamgages in North and South Carolina that approached or exceeded major flood stage EST on September 19, 2018, as the former Hurricane Florence, now downgraded to a tropical depression, deluged the states with rain.

    USGS scientist takes measurement in a flooded NC creek
    September 16, 2018

    Working to keep vital flood information flowing in the Carolinas

    David Stillwell, USGS hydrologic technician, performs a discharge measurement to help document and forecast flooding caused by Hurricane Florence at Long Creek in Rhyne, North Carolina on Sept. 16. 


    Image shows a USGS storm tide sensor attached to a pier
    September 10, 2018

    USGS Storm-Tide Sensor for Hurricane Florence

    A USGS storm-tide sensor, deployed in advance of Hurricane Florence's landfall. The sensors are housed in vented steel pipes a few inches wide and about a foot long. They are being installed on bridges, piers, and other structures that have a good chance of surviving the storm.

    The information the sensors collect will help define the depth and duration of a storm

    Image shows USGS scientists in PFDs collecting a seismic airgun while at sea
    September 6, 2018

    Retrieving Seismic Airguns

    USGS personnel on the deck of the R/V Hugh R. Sharp during retrieval of seismic airguns.  The streamer that receives the seismic signals generated by the airguns is towed behind the ship and is here shown

    A coral worn smooth with a badly eroded base
    August 28, 2018

    Erosion has taken a toll on this Keys coral

    A reef in the Florida Keys National Marine Sanctuary with little living coral and extensive bioerosion. Photo taken under research permit number FKNMS-2016-085-A1. Credit: USGS, Ilsa Kuffner.

    Two divers use a tripod and drill to take a coral core
    August 21, 2018

    USGS scientists drill a coral core in the Florida Keys

    Research Oceanographer Lauren Toth and student volunteer Liz Whitcher drill a coral-reef core from a reef off Key West, Florida, in the Florida Keys National Marine Sanctuary. Photo taken under research permit FKNMS-2015-058. Credit: Anastasios Stathakopoulos, USGS.

    A coral worn smooth by erosion
    June 26, 2018

    Like many Keys corals, this one has no new growth

    A modern coral reef in Dry Tortugas National Park. There is little living coral and high rates of bioerosion. Photo taken under research permit number DRTO-2018-SCI-0005. Credit: Lauren Toth, USGS

    1985-2018 Lion fish invasion. Ecosystems Mission Area. Wetlands and Aquatic Research Center
    May 16, 2018

    1985-2018 Lionfish Invasion

    Lionfish invasion (1985-2018). Lionfish invaded US Atlantic coastal waters, the Caribbean Sea, and the Gulf of Mexico with unprecedented, alarming speed. Though reports of sightings date back to the 1980s, it is only recently that the species has exploded in numbers and range. In fact, the lionfish invasion is the 

    USGS staff uses a radio to determine if an Acoustic Backscatter sensor (white circle) is still operating
    April 25, 2018

    Can you hear me now?

    Steve Suttles (USGS) uses a radio to determine if an Acoustic Backscatter sensor (white circle) is still operating at the end of the deployment.

    Filter Total Items: 393
    November 10, 2015

    A new interactive Flood Inundation Map to improve flood warnings and assist with emergency management along Big Creek in Alpharetta and Roswell, Georgia, was debuted during a ceremony today in Alpharetta’s Rock Mill Park.

    USGS science for a changing world logo
    October 28, 2015

    Alligators and the Everglades go hand-in-hand, and as water conditions change in the greater Everglades ecosystem, gators are one of the key species that could be affected.

    USGS science for a changing world logo
    October 22, 2015

    During the historic October 2015 floods in South Carolina, 17 U.S. Geological Survey streamgages recorded the highest peak streamflow and/or river height (or stage) since those streamgages were installed. An additional 15 USGS streamgages recorded peaks in the top 5 for their periods of record.

    Image: USGS Scientist Inspects Streamgage During Flooding Event
    October 5, 2015

    Heavy rains and hazardous weather conditions are occurring in western South Carolina, with record flooding occurring and more expected over parts of the region over the next several days.

    Screenshot of portal entry page
    October 2, 2015

    As the path of Hurricane Joaquin continues to move farther offshore, making landfall in the U.S. less likely, U.S. Geological Survey coastal change experts say there’s still a high probability of dune erosion along parts of the Atlantic coast, from the North Carolina Outer Banks to Cape Cod.

    October 2, 2015

    Currently, heavy rains and hazardous weather conditions are predicted for western North Carolina and most of South Carolina by the National Weather Service, with flooding possible over parts of the region over the next several days.

    1940 legacy topographic map quadrangle of the Spring Creek area
    September 16, 2015

    Recently released US Topo maps for Florida now feature more trails using data provided by the U.S. Forest Service as well as trail information from other federal, state and private sources.

    Image: USGS Documents 2015 Drought
    September 8, 2015

    U.S. Geological Survey hydrologic technicians are currently taking measurements from hundreds of streams and rivers across the western United States as part of a low flow study.

    Image: Snakehead Fish
    September 1, 2015

    Scientists use the word “anthropogenic” in referring to environmental change caused or influenced by people, either directly or indirectly.

    Graph: Peak ground-motion variability for a magnitude 7.7 earthquake
    July 30, 2015

    Computer simulations of earthquake shaking, replicating the quakes that occurred in 1811-1812 in the New Madrid seismic zone (NMSZ), indicate that future large earthquakes there would produce major, prolonged ground shaking.

    Image: Giant African Land Snail
    July 9, 2015

    The invasive giant African land snail is expanding its range in Miami, and with it, the range of the parasitic rat lungworm, according to new U.S. Geological Survey led research.

    Follow Region 2 activities on social media, get contact information for Region 2 USGS centers, and meet Region 2's staff and center directors. 

    Filter Total Items: 283