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/...

    Filter Total Items: 5,232
    Publication Thumbnail
    Year Published: 2020

    Development and application of an empirical dune growth model for evaluating barrier island recovery from storms

    Coastal zone managers require models that predict barrier island change on decadal time scales to estimate coastal vulnerability, and plan habitat restoration and coastal protection projects. To meet these needs, methods must be available for predicting dune recovery as well as dune erosion. In the present study, an empirical dune growth model (...

    Dalyander, Patricia (Soupy); Mickey, Rangley C.; Passeri, Davina; Plant, Nathaniel G.

    Publication Thumbnail
    Year Published: 2020

    Water levels and selected water-quality conditions in the Mississippi River Valley alluvial aquifer in eastern Arkansas, 2014

    In 2014, the U.S. Geological Survey, in cooperation with the Arkansas Geological Survey and the Arkansas Natural Resources Commission, determined water-level altitudes in 468 wells in eastern Arkansas and collected water-quality samples from 144 wells. Water-level altitudes were calculated based on the measured depth to water in each well and used...

    Rodgers, Kirk D.; Whaling, Amanda R.
    Rodgers, K.D., and Whaling, A.R., 2020, Water levels and selected water-quality conditions in the Mississippi River Valley alluvial aquifer in eastern Arkansas, 2014: U.S. Geological Survey Scientific Investigations Report 2020–5123, 22 p., 3 pls., https://doi.org/10.3133/sir20205123.

    Publication Thumbnail
    Year Published: 2020

    An analysis of streamflow trends in the southern and southeastern US from 1950-2015

    In this article, the mean daily streamflow at 139 streamflow-gaging stations (sites) in the southern and southeastern United States are analyzed for spatial and temporal patterns. One hundred and thirty-nine individual time-series of mean daily streamflow were reduced to five aggregated time series of Z scores for clusters of sites with similar...

    Rodgers, Kirk D.; Roland II, Victor L.; Hoos, Anne B.; Crowley-Ornelas, Elena; Knight, Rodney

    Publication Thumbnail
    Year Published: 2020

    Predicted pH of groundwater in the Mississippi River Valley alluvial and Claiborne aquifers, south-central United States

    Regional aquifers in the Mississippi embayment are the principal sources of water used for public and domestic supply, irrigation, and industrial uses throughout the region. An understanding of how water quality varies spatially, temporally, and with depth are critical aspects to ensuring long-term sustainable use of these resources. A boosted...

    Kingsbury, James A.; Knierim, Katherine J.; Haugh, Connor J.
    Kingsbury, J.A., Knierim, K.J., and Haugh, C.J., 2020, Predicted pH of groundwater in the Mississippi River Valley alluvial and Claiborne aquifers, South-Central United States: U.S. Geological Survey Scientific Investigations Map 3465, 1 sheet, https://doi.org/10.3133/sim3465.

    Publication Thumbnail
    Year Published: 2020

    Measured and calculated nitrate and dissolved organic carbon concentrations and loads at the W.P. Franklin Lock and Dam, S-79, south Florida, 2014-17

    The U.S. Geological Survey monitored dissolved nitrate plus nitrite as nitrogen (N) and dissolved organic carbon (DOC) concentrations and calculated loads of these constituents at the W.P. Franklin Lock and Dam (S-79) from April 2014 to December 2017. Flows from Lake Okeechobee controlled by S-77, S-78 and S-79 affect water quality in the...

    Booth, Amanda
    Booth, A., 2020, Measured and calculated nitrate and dissolved organic carbon concentrations and loads at the W.P. Franklin Lock and Dam, S-79, south Florida, 2014-17: U.S. Geological Survey Open-File Report 2020-1094, 37 p., https://doi.org/10.3133/ofr20201094.

    Publication Thumbnail
    Year Published: 2020

    Stable isotope dynamics of herbivorous reef fishes and their ectoparasites

    Acanthurids (surgeonfishes) are an abundant and diverse group of herbivorous fishes on coral reefs. While their contribution to trophic linkages and dynamics in coral reef systems has received considerable attention, the role of linkages involving their parasites has not. As both consumers of fish tissue and prey to microcarnivores, external...

    Jenkins, William; Demopoulos, Amanda; Nicholson, Matthew C.; Sikkel, Paul C.

    Publication Thumbnail
    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.

    Publication Thumbnail
    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

    Publication Thumbnail
    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

    Publication Thumbnail
    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

    Publication Thumbnail
    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.

    Publication Thumbnail
    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.

    Filter Total Items: 500
    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.

    Filter Total Items: 393
    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. 

    Filter Total Items: 283