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: 371
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...

    Date published: June 8, 2018
    Status: Active

    Poplar Cove, Nantahala National Forest, North Carolina

    The USGS and its cooperators have installed instruments in a steep hillside about 17.5 km southwest of Franklin, NC in the Nantahala National Forest.

    Contacts: Ben Mirus, Jonathan Godt, The North Carolina Department of Environmental Quality, Coweeta Experimental Forest, Colorado School of Mines
    Date published: June 7, 2018
    Status: Active

    Mooney Gap, Coweeta Experimental Forest, North Carolina

    The USGS and its cooperators have installed instruments in a steep hillside about 16 km southeast of Otto, NC in the Coweeta Experimental Forest.

    Contacts: Ben Mirus, Jonathan Godt, The North Carolina Department of Environmental Quality, The Coweeta Experimental Forest, Colorado School of Mines
    Date published: June 7, 2018
    Status: Active

    Bent Creek Experimental Forest, North Carolina

    The USGS and its cooperators have installed instruments in a steep hillside about 38.5 km south of Asheville, NC in the Bent Creek Experimental Forest.

    Contacts: Ben Mirus, Jonathan Godt, The North Carolina Department of Environmental Quality, The United States Forest Service, Colorado School of Mines
    Date published: May 10, 2018
    Status: Active

    Joint Ecosystem Modeling: Cape Sable Seaside Sparrow Marl Prairie Indicator

    Marl prairie is the most diverse freshwater vegetation community in the Greater Everglades and provides the only suitable habitat for the federally endangered Cape Sable seaside sparrow (CSSS; Ammodramus maritimus mirabilis).

    Date published: May 10, 2018
    Status: Active

    Joint Ecosystem Modeling: EverSnail

    EverSnail, developed in collaboration with the University of West Florida, is an age- and size-structured spatially-explicit landscape model of native apple snails (Pomacea paludosa).

    Filter Total Items: 5,355
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    Year Published: 2021

    Sentinel-2 and WorldView-3 atmospheric correction and signal normalization based on ground-truth spectroradiometric measurements

    Remote sensing satellite Earth Observing Systems (EOS) provide a variety of products for monitoring Earth surface processes at varying spatial and spectral resolutions. Combining information from high and medium spatial resolution images is valuable for monitoring ground cover and vegetation status in cropland, grassland, forests, and other...

    Pancorbo, J.L.; Lamb, Brian T.; Quemada, Miguel; Hively, W. Dean; Gonzalez-Fernandez, I.; Molina, Inigo

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    Year Published: 2021

    The history of surface-elevation paradigms in mangrove biogeomorphology

    Positioned in the intertidal zone, mangrove forests are a key model ecosystem with which to observe and test biogeomorphological concepts. Understanding how mangroves interact with their intertidal environment, particularly tidal inundation, is important if we are to assess their vulnerability or resilience to accelerated sea-level rise. While...

    Friess, Daniel A.; McKee, Karen L.

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    Year Published: 2021

    Does geomorphology determine vulnerability of mangrove coasts to sea-level rise?

    The greatest climate-based threat to coastlines worldwide is sea-level rise. We tested the hypothesis that tropical coasts fringed by mangroves and receiving high inputs of terrigenous sediment are less vulnerable to sea-level rise than biogenic systems dependent upon peat formation for vertical land development. An analysis of published data...

    McKee, Karen L.; Krauss, Ken; Cahoon, Donald

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    Year Published: 2021

    Migration of injected wastewater with high levels of ammonia in a saline aquifer in south Florida

    Treated wastewater with high levels of ammonia has been injected, since March 1983 into the deep saline units of the Lower Floridan aquifer (LFA) from a treatment plant near the east coast of Miami-Dade County in southeastern Florida. Monitoring wells in the plant recorded ammonia concentrations above ambient levels at hydrogeologic units located...

    Sepúlveda, Nicasio; Lohmann, Melinda A.

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    Year Published: 2021

    Development and application of surrogate models, calculated loads, and aquatic export of carbon based on specific conductance, Big Cypress National Preserve, south Florida, 2015–17

    Understanding the carbon transport within aquatic environments is crucial to quantifying global and local carbon budgets, yet limited empirical data currently (2021) exist. This report documents methodology and provides data for quantifying the aquatic export of carbon from a cypress swamp within Big Cypress National Preserve and is part of a...

    Booth, Amanda
    Booth, A.C., 2021, Development and application of surrogate models, calculated loads, and aquatic export of carbon based on specific conductance, Big Cypress National Preserve, South Florida, 2015–17: U.S. Geological Survey Open-File Report 2020–1136, 14 p., https://doi.org/10.3133/ofr20201136.

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    Year Published: 2021

    Assessing the impact of drought on arsenic exposure from private domestic wells in the conterminous United States

    This study assesses the potential impact of drought on arsenic exposure from private domestic wells by using a previously developed statistical model that predicts the probability of elevated arsenic concentrations (>10 μg per liter) in water from domestic wells located in the conterminous United States (CONUS). The application of the model to...

    Lombard, Melissa; Daniel, Johnni; Jeddy, Zuha; Hay, Lauren; Ayotte, Joseph D.

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    Year Published: 2021

    Modeling structural mechanics of oyster reef self-organization including environmental constraints and community interactions

    Self-organization is a process of establishing and reinforcing local structures through feedbacks between internal population dynamics and external factors. In reef-building systems, substrate is collectively engineered by individuals that also occupy it and compete for space. Reefs are constrained spatially by the physical environment, and by...

    Yurek, Simeon; Eaton, Mitchell; Lavaud, Romain; Laney, R. Wilson; DeAngelis, Don; Pine, William E.; LaPeyre, Megan K.; Martin, Julien; Frederick, Peter C; Wang, Hongqing; Lowe, Michael R.; Johnson, Fred; Camp, Edward V.; Mordecai, Rua

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    Year Published: 2021

    Genetic connectivity of the West Indian manatee in the southern range and limited evidence of hybridization with Amazonian manatees

    The Antillean subspecies of the West Indian manatee is classified as endangered by the International Union for the Conservation of Nature (IUCN) Red List. In Brazil, the manatee population is listed as endangered with an estimated population size of 500–1,000. Historic hunting, recent habitat degradation, and fisheries bycatch have decreased the...

    Luna, Fabia O.; Beaver, Caitlin; Nourisson, Coralie; Bonde, Robert; Attademo, Fernanda L. N.; Miranda, Adriana V.; Torres-Florez, Juan P.; de Sousa, Glaucia P.; Passavate, Jose Z.; Hunter, Margaret

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    Year Published: 2021

    Biological and practical tradeoffs in planting techniques for submerged aquatic vegetation

    Global loss of submerged aquatic vegetation (SAV) and associated ecosystem function has prompted an interest in SAV revegetation, particularly where underlying stressors such as nutrient enrichment are mitigated, yet natural recruitment remains low. Typically, SAV is hand-planted, but alternative reliable and practically scalable SAV planting...

    Rohal, C.B.; Reynolds, L.K.; Adams, C.R.; Martin, C.W.; Latimer, E.; Walsh, Stephen; Slater, J.

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    Year Published: 2021

    Mangroves and people: Impacts and interactions

    Mangroves have long been associated with human populations, as coastal communities rely on the various ecosystem services that mangroves provide. However, human degradation and destruction of mangrove forests is common, despite and because of our reliance on them as valuable ecosystems. Mangrove research and management must elucidate and reconcile...

    Freiss, Daniel A; Chua, Siew Chin; Jaafer, Zeehan; Krauss, Ken; Yando, Erik S.

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    Year Published: 2021

    Red imported fire ants reduce invertebrate abundance, richness, and diversity in Gopher Tortoise burrows

    Gopher Tortoise (Gopherus polyphemus) burrows support diverse commensal invertebrate communities that may be of special conservation interest. We investigated the impact of red imported fire ants (Solenopsis invicta) on the invertebrate burrow community at 10 study sites in southern Mississippi, sampling burrows (1998–2000) before and after bait...

    Epperson, Deborah Mardeane; Allen, Craig R.; Hogan, Katharine F.E.

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    Year Published: 2021

    Effects-based monitoring of bioactive chemicals discharged to the Colorado River before and after a municipal wastewater treatment plant replacement

    Monitoring of the Colorado River near the Moab, Utah, wastewater treatment plant (WWTP) outflow has detected pharmaceuticals, hormones, and estrogen-receptor (ER)-, glucocorticoid receptor (GR)-, and peroxisome proliferator-activated receptor-gamma (PPARγ)-mediated biological activities. The aim of the present multi-year study was to assess...

    Cavallin, J.E.; Battaglin, William A.; Beihoffer, Jon; Blackwell, Bradley D.; Bradley, Paul; Cole, AR; Ekman, Drew R.; Hofer, R; Kinsey, J; Keteles, Kristen; Weissinger, R; Winkelman, Dana L.; Villeneuve, Daniel L.

    Filter Total Items: 498
    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.

    USGS team and R/V Savannah crew prepare to lower the quadpod deployed at the nearshore site onto the deck
    April 13, 2018

    Quadpod Recovery

    USGS team and R/V Savannah crew prepare to lower the quadpod deployed at the nearshore site onto the deck during recovery operations.  Note all the hairy encrusting organisms that grew in 3 months and how close to the shoreline the ship is.

    Conglomerates within the Sycamore Sand at Hammetts Crossing
    February 27, 2018

    Conglomerates, Sycamore Sand at Hammetts Crossing, Travis Cty, Texas

    Conglomerates within the Sycamore Sand at Hammetts Crossing, Travis County, Texas (photograph by Allan K. Clark, U.S. Geological Survey, February 27, 2018).
    U.S. Geological Survey Scientific Investigations Map 3418, https://doi.org/10.3133/sim3418

    A USGS researcher sits in the sand conducting fieldwork on Buttonwood Key, FL
    February 1, 2018

    Fieldwork on Florida Bay Islands

    A USGS researcher conducts fieldwork on Buttonwood Key, an island in Florida Bay, to determine the impacts of Hurricane Irma. The storm left thick deposits of mud on the island, which are being measured, sampled and photographed.  Many of the islands in Florida Bay have open mudflats in the center, surrounded by mangroves on the perimeter. 

    Image showing mangroves that have lost all their leaves and a berm that is significantly thinner following Hurricane Irma. 
    January 31, 2018

    Berm at Jim Foot Key, Florida (2018)

    In Photo: The red circle indicates the same position as shown in the April 2014 photo.  The mangroves have lost all their leaves and the berm is significantly thinner following the storm. 

    Scientists from the Florence Bascom Geoscience Center first sampled four islands in

    ...
    Picture of field water-level monitoring gage EDEN 13
    January 31, 2018

    Field water-level monitoring gage EDEN 13

    Field water-level monitoring gage EDEN 13. Photograph by Michael Oliver, U.S. Geological Survey.
    U.S. Geological Survey Fact Sheet 2017–3069
    Version 1.1, January 2018

    Excerpt of satellite image showing landslide impacts to roads, agriculture, and a reservoir in the Lares Municipality.
    December 31, 2017

    LS Preliminary Puerto Rico

    Excerpt of satellite image showing landslide impacts to roads, agriculture, and a reservoir in the Lares Municipality. Points identify the approximate location of roads visibly impacted by landslides. Image filename contains approximate latitude and longitude of this impact location.

    USGS Rapid Deployment Gauge was installed near Morovis, Puerto Rico, to monitor the Río Grande de Manatí after Hurricane Maria d
    December 31, 2017

    A Rapid Deployment Gauge in Puerto Rico

    This USGS Rapid Deployment Gauge was installed near Morovis, Puerto Rico, to monitor the Río Grande de Manatí after Hurricane Maria destroyed the permanent streamgage which typically monitors the river. USGS photo.

    A cinderblock with monitoring devices on it sits in shallow water on a reef with corals growing on it and off in the distance.
    December 31, 2017

    Elkhorn coral in Biscayne National Park

    The CMHRP is testing the calcification rates of different genetic strains of threatened Elkhorn coral (Acropora palmata) to advise local and Federal agencies engaged in coral reef restoration. Elkhorn coral is the sole Florida-Caribbean species responsible for creating the reef crest, which is the geological feature responsible for protecting shorelines from wave

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    Filter Total Items: 399
    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.

    Image: White Ibis and Wood Stork Perched on a Tree Island in the Everglades
    June 24, 2015

    Wading bird numbers in the Florida Everglades are driven by water patterns that play out over multiple years according to a new study by the U.S. Geological Survey and Florida Atlantic University.

    Image: A Manatee in Florida
    May 20, 2015

    The risk of extinction for the endangered Florida manatee appears to be lower, according to a new U.S. Geological Survey led study.

    USGS science for a changing world logo
    April 28, 2015

    EVERGLADES NATIONAL PARK, Fla.— The largest and longest Burmese Python tracking study of its kind -- here or in its native range -- is providing researchers and resource managers new information that may help target control efforts of this invasive snake, according to a new study led by the U.S. Geological Survey.

    collage of scientists conducting science related to each mission are
    April 21, 2015

    USGS scientists have updated the hydrogeologic framework for the Floridan aquifer system that underlies Florida and parts of Georgia, Alabama, and South Carolina.

    USGS
    April 16, 2015

    Many loggerhead sea turtles that nest in Dry Tortugas National Park head to rich feeding sites in the Bahamas after nesting, a discovery that may help those working to protect this threatened species

    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