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: 366
Date published: November 30, 2018
Status: Completed

Black Warrior Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Black Warrior Basin Province 5065.

Date published: November 30, 2018
Status: Active

Illinois Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the  Illinois Basin Province 5064.

    Date published: November 29, 2018
    Status: Active

    Gulf Coast Petroleum Systems Project - Research

    This site highlights the research on the processes that impact the formation, accumulation, occurrence, and alteration of hydrocarbon energy resources of the Gulf Coast of Mexico. The project also conducts assessments of undiscovered, technically recoverable hydrocarbon resources. The Gulf Coast Petroleum Systems Project focuses on the onshore and State waters portion of the Gulf Coast basin,...

    Date published: November 28, 2018
    Status: Active

    Natural Drought and Flood Histories from Lacustrine Archives

    Previous work performed as part of the USGS Holocene Synthesis project illuminated complex centennial-scale patterns of drought and wetter-than-average conditions across the North American continent interior during the past two millennia, where paleorecord data coverage is sparse.  In order to explain the patterns of naturally-occurring drought, floods, and storms for the past, identified by...

    Date published: November 27, 2018
    Status: Completed

    Understanding Drivers of Cyanotoxin Production in the Lake Okeechobee Waterway

    The U.S. Geological Survey (USGS) and other researchers combined field and laboratory approaches in two studies to understand the factors that drive cyanobacterial bloom development and associated cyanotoxin production in Lake Okeechobee, the St. Lucie River and Estuary, and the Indian River Lagoon in response to the large-scale Lake Okeechobee cyanobacteria bloom in 2016.

    Date published: November 12, 2018
    Status: Active

    Geological Investigations of the Neogene

    More than a third of the United States population lives in counties directly on the shoreline, making them vulnerable to hazards associated with changing sea level and storm surges associated with hurricanes and severe storms. The geologic record contains many examples of past intervals of warm climate and high sea level. "Geological Investigation of the Neogene" is examining proxy records of...

    Date published: November 1, 2018
    Status: Active

    Using Molecular Tools to Recalibrate Freshwater Mussel Taxonomy with a Focus on Imperiled Species

    Freshwater mussels of the family Unionidae, also known as naiads, pearly mussels, freshwater clams, or unionids, are a diverse group of bivalve mollusks that are distributed on every continent except Antarctica. Approximately 300 species are known from the United States, with most of this diversity residing in rivers of the Southeast where many endemic taxa have evolved.

    Date published: October 26, 2018
    Status: Active

    Blue Ridge and Inner Piedmont Geologic Mapping

    The Blue Ridge and Inner Piedmont Geologic Mapping Task (BRIP) is the western focus of geologic mapping and framework studies of the Piedmont and Blue Ridge Project. BRIP will conduct modern geologic mapping and geologic framework studies in the Wytheville, Hickory and Boone 30x60-min. sheets. Collectively, the objectives of BRIP are to (1) characterize the geologic framework of the Blue Ridge...

    Contacts: Arthur Merschat
    Date published: October 23, 2018
    Status: Completed

    Fine-scale Benthic Habitat Mapping

    Both ATRIS configurations was deployed in Dry Tortugas National Park (DRTO) to fill information gaps in the spatial coverage of existing habitat maps.

    Date published: October 11, 2018
    Status: Active

    Sea Level Rise and Climate: Impacts on the Greater Everglades Ecosystem and Restoration

    The Greater Everglades Ecosystem covers much of south Florida, and the highest areas are only a few meters above sea level.  Predictions of sea level rise and changes in storm intensity for the 21st century are particularly concerning to the urban population of Miami and the east coast, but also represent a challenge to Everglades National Park and Biscayne National Park resource...

    Date published: October 5, 2018
    Status: Active

    Coral Reef Ecosystem Studies (CREST)

    The specific objectives of this project are to identify and describe the processes that are important in determining rates of coral-reef construction. How quickly the skeletons of calcifying organisms accumulate to form massive barrier-reef structure is determined by processes of both construction (how fast organisms grow and reproduce) and destruction (how fast reefs break down by mechanical...

    Date published: September 27, 2018
    Status: Active

    Piedmont and Blue Ridge Project

    The Piedmont and Blue Ridge Project is a geologic mapping project supported by the USGS National Cooperative Geologic Mapping Program. The Piedmont Blue Ridge Project aims to understand the geologic framework and tectonic evolution of terranes and basins in the Appalachian Piedmont and Blue Ridge, and their significance for water, mineral and energy resources, natural hazards, and engineering/...

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    Year Published: 2021

    Germination potential of baldcypress (Taxodium distichum) swamp soil seed bank along geographical gradients

    Changing environments of temperature, precipitation and moisture availability can affect vegetation in ecosystems, by affecting regeneration from the seed bank. Our objective was to explore the responses of soil seed bank germination to climate-related environments along geographic gradients. We collected seed banks in baldcypress (Taxodium...

    Lei, Ting; Middleton, Beth

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    Year Published: 2021

    Carrying capacity of spatially distributed metapopulations

    Carrying capacity is a key concept in ecology. A body of theory, based on the logistic equation, has extended predictions of carrying capacity to spatially distributed, dispersing populations. However, this theory has only recently been tested empirically. The experimental results disagree with some theoretical predictions of when they are...

    Zhang, Bo; DeAngelis, Don; Ni, Wei-Ming

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    Year Published: 2021

    Surface elevation change evaluation in mangrove forests using a low‐cost, rapid‐scan terrestrial laser scanner

    Mangrove forests have adapted to sea level rise (SLR) increases by maintaining their forest floor elevation via belowground root growth and surface sediment deposits. Researchers use surface elevation tables (SETs) to monitor surface elevation change (SEC) in mangrove forests, after which this information is used to assess SLR resiliency or to...

    Kargar, Ali Rouzbeh; MacKenzie, Richard A.; Fafard, Alexander; Krauss, Ken; van Aardt, Jan

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    Year Published: 2021

    How plants influence resilience of salt marsh and mangrove wetlands to sea-level rise

    This review evaluates the importance of plants and associated biological processes in determining the vulnerability of coastal wetlands to sea-level rise. Coastal wetlands occur across a broad sedimentary continuum from minerogenic to biogenic, providing an opportunity to examine the relative importance of biological processes in wetland...

    Cahoon, Donald R.; McKee, Karen L.; James Morris

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    Year Published: 2021

    Resolving species boundaries in the critically imperiled freshwater mussel species, Fusconaia mitchelli (Bivalvia: Unionidae)

    Species are a fundamental unit of biology, and defining accurate species boundaries is integral to effective conservation and management of imperiled taxa. Freshwater mussels (Bivalvia: Unionidae) are among the most imperiled groups of organisms in North America, yet species boundaries remain uncertain for many taxa. The False Spike, ...

    Smith, Chase H.; Johnson, Nathan; Havlik, Kaitlyn; Doyle, Robert D.; Randklev, Charles R.

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    Year Published: 2021

    Scientific contributions of the Mangrove Macrobenthos and Management (MMM) conference series, 2000-2019

    The conservation of mangrove forests has become an important international policy priority in recent decades, and is mirrored by a large increase in research interest. Multiple disciplines now use mangroves as a study system, from molecular biology to social science. The variety of research conducted in mangroves is exemplified by the Mangrove...

    Friess, Daniel A.; Dahdouh-Guebas, Farid; Satyanarayana, Behara; Cannicci, Stefano; Vannini, Marco; Chua, Siew Chin; Duke, Norman; Feller, Ilka C.; Jaafer, Zeehan; Jayatissa, L.P.; Koedam, Nico; Krauss, Ken; Lee, Shing Yip; Mancera Pineda, Jose Ernesto; Ruwa, Renison; Yando, Erik S.

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    Year Published: 2020

    Mapping Phragmites australis live fractional cover in the lower Mississippi River Delta, Louisiana

    In response to a co-occurring non-native scale infestation and Phragmites australis dieback in southeast Louisiana, normalized difference vegetation index (NDVI) satellite mapping was implemented to track P. australis condition in the lower Mississippi River Delta. While the NDVI mapping successfully documented relative condition changes,...

    Rangoonwala, Amina; Howard, Rebecca J.; Ramsey III, Elijah W.
    Rangoonwala, A., Howard, R.J., and Ramsey, E.W., III, 2020, Mapping Phragmites australis live fractional cover in the lower Mississippi River Delta, Louisiana (ver. 1.1, January 2021): U.S. Geological Survey Open-File Report 2020–1131, 24 p., https://doi.org/10.3133/ofr20201131.

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    Year Published: 2020

    Underwater photographic reconnaissance and habitat data collection in the Florida Keys—A procedure for ground truthing remotely sensed bathymetric data

    Bathymetric geoprocessing analyses of the Florida Reef Tract have provided insights into trends of seafloor accretion and seafloor erosion over time and following major storm events. However, bathymetric surveys sometimes capture manmade structures and vegetation, which do not represent the desired bare-earth data. Therefore, ground truthing is...

    Fehr, Zachery W.; Yates, Kimberly K.
    Fehr, Z.W., and Yates, K.K., 2020, Underwater photographic reconnaissance and habitat data collection in the Florida Keys—A procedure for ground truthing remotely sensed bathymetric data: U.S. Geological Survey Open-File Report 2020–1118, 13 p., https://doi.org/10.3133/ofr20201118.

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    Year Published: 2020

    Council monitoring and assessment program (CMAP): Common monitoring program attributes and methodologies 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

    Water resources of Red River Parish, Louisiana

    Information concerning the availability, use, and quality of water in Red River 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, about 5.76 million gallons per...

    Robinson, Angela L.; White, Vincent E.
    Robinson, A.L., and White, V.E., 2020, Water resources of Red River Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3053, 6 p., https://doi.org/10.3133/fs20203053.

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    Year Published: 2020

    Water resources of Bienville Parish, Louisiana

    Information concerning the availability, use, and quality of water in Bienville 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, about 13.03 million gallons per...

    Robinson, Angela L.; White, Vincent E.
    Robinson, A.L., and White, V.E., 2020, Water resources of Bienville Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3052, 6 p., https://doi.org/10.3133/fs20203052.

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    Year Published: 2020

    Reestablishing a stepping-stone population of the threatened elkhorn coral Acropora palmata to aid regional recovery

    Recovery of the elkhorn coral Acropora palmata is critical to reversing coral reef ecosystem collapse in the western Atlantic, but the species is severely threatened. To gauge potential for the species’ restoration in Florida, USA, we conducted an assisted migration experiment where 50 coral fragments of 5 nursery-raised genetic strains...

    Kuffner, Ilsa B.; Stathakopoulos, Anastasios; Toth, Lauren T.; Bartlett, Lucy

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    Dark image from a video camera shooting for 10 minutes, shows a beach and where varying degrees of movement happened.
    November 8, 2018

    Isla Verde Video Camera 3 Variance Image

    Variance image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and shows areas of more movement as brighter colors.

    Image from a video camera shooting for 10 minutes tracks the darkest pixels through that time.
    November 8, 2018

    Isla Verde Video Camera 1 Dark Image

    Dark image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the darkest pixels through 10 minutes of motion.

    Image from a video camera shooting for 10 minutes tracks the darkest pixels through that time.
    November 8, 2018

    Isla Verde Video Camera 2 Dark Image

    Dark image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the darkest pixels through 10 minutes of motion.

    Image from a video camera shooting for 10 minutes tracks the darkest pixels through that time.
    November 8, 2018

    Isla Verde Video Camera 3 Dark Image

    Dark image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the darkest pixels through 10 minutes of motion.

    Image from a video camera shooting for 10 minutes tracks the darkest pixels through that time.
    November 8, 2018

    Isla Verde Video Camera 4 Dark Image

    Dark image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the darkest pixels through 10 minutes of motion.

    A man stands near cameras mounted on a pole, on top of a building, with a beach in the background.
    November 6, 2018

    Video camera setup at Isla Verde

    Shawn Harrison stands near video cameras on top of a building overlooking Isla Verde in San Juan, Puerto Rico. The cameras measure wave run-up and flooding as part of a study in response to Hurricane Irma and Hurricane Maria.

    View from atop a building looks down on a sandy beach with a rainbow, palm tree just below view, and buildings in distance.
    November 5, 2018

    Isla Verde, San Juan, Puerto Rico

    The urban reef at Isla Verde supports various species of protected corals, sea turtles, and crustaceans, as well as many Caribbean fish. It also protects the International Airport and numerous homes and resorts on the coast.

    A broken foundation where the Cape San Blas house stood
    November 4, 2018

    A broken slab is all that's left of Fish Inn after Hurricane Michael

    A broken concrete foundation and some shattered floor tiles were all that remained of the sea turtle researchers' field station and home base after Category Four Hurricane Michael struck Cape San Blas on Oct. 10, 2018.

    Shallow, underwater photo of a reef with various species of corals growing on the rocky substrate.
    November 1, 2018

    Wave-tide gauge off San Juan

    A wave-tide gauge, pictured here on a coral reef among sea rods, brain corals, and sea fans, is installed off Isla Verde in San Juan, Puerto Rico.

    October 24, 2018

    Image of the Week - Hurricane Michael

    Hurricane Michael made landfall in the Florida Panhandle on October 10, 2018.

    Landsat 7 images captured before and after highlight the destructive path of the Category 4 storm.

    Mexico Beach was all but demolished, with homes left in heaps by wind and storm surge. The green leaves that pop in the September image are stripped from trees by October, and the dull

    Photo of a scientist explaining how bathymetric data is collected using PWCs to a group of children
    October 19, 2018

    Children watch a scientist explain data collection at the Science Fest

    Children at the Science Festival in St. Petersburg, Florida, watch as a scientist explains how personal watercraft are used to collect bathymetric data.

    Two oceanographers look at a coral core stored in a wooden box
    October 18, 2018

    Coral cores like this one reveal geologic history of Keys reefs

    USGS Research Oceanographer Lauren Toth and Oceanographer Anastasios Stathakopoulos study a coral-reef core in the USGS’s Core Archive in St. Petersburg, Florida. Photo: Dominique Gallery, USGS.

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    Hydrologic technician Samantha Kephart.points out a high water mark
    October 21, 2016

    The heavy rains and storm surge Hurricane Matthew produced caused severe flooding in many parts of the south east, resulting in almost 40 peak flood records. As the flood waters continue to recede from some affected areas, the U. S. Geological Survey will continue its efforts to record this historic flooding. Click here to learn more about the work the USGS has completed for Hurricane Matthew.

    Hurricane Matthew satellite image that shows the large storm approaching the coastline of Florida.
    October 6, 2016

    USGS is engaged in research, monitoring, sampling and coastal change forecasting associated with Hurricane Matthew from Florida north up into Virginia.

    To learn about storm sensors and see their location, explore the USGS Coastal Change Hazard Portal, or see satellite imagery before and after the storm, visit the USGS Hurricane Matthew page.

    USGS
    October 6, 2016

    As the east coast prepares for Hurricane Matthew's arrival, the U.S. Geological Survey uses advanced models to forecast the coastal impacts Matthew could bring. 

    Storm-tide sensor
    October 5, 2016

    Media interested in going out with USGS field crews deploying sensors please contact:

    Florida: Richard Kane, rkane@usgs.gov, 813-918-1275 

    Georgia: Brian McCallum, bemccall@usgs.gov, 678- 924-6672

    South Carolina: John Shelton, jmshelto@usgs.gov, 803-767-5542

    North Carolina: Jeanne Robbins, jrobbins@usgs.gov, 919-571-4017 

    USGS: Science for a changing world
    September 6, 2016

    Threats to groundwater availability and sustainability in the Northern Atlantic Coastal Plain are dependent to a large degree by the type of aquifers used for water supply, according to a new regional assessment by the U.S. Geological Survey.

    two men standing near a well. Truck-mounted rig and well head visible.
    August 29, 2016

    TECHNICAL ANNOUNCEMENT: Monitoring, verification and accounting are key parts to demonstrating the feasibility or success of integrated carbon capture and storage technologies.

    Catawba rhododendron blooming at Round Bald, NC
    August 11, 2016

    “From the mountains to the coast, the southeastern U.S. contains ecosystems that harbor incredible biodiversity. Many of those ecosystems are already highly at risk from urbanization and other human land-use change. Identifying the ecosystems at risk from climate change will help inform conservation and management to ensure we don’t lose that biodiversity.” (Jennifer Constanza, report author)

    Image: Methane Seeps along Offshore Virginia
    June 16, 2016

    Recent scientific work has confirmed the source, composition and origin of methane seeps on the Atlantic Ocean seafloor, discovered in 2012, where scientists never expected them to be.

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

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