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: June 4, 2019
Status: Active

Appalachian Basin Geologic Mapping Project

The Appalachian Basin Geologic Mapping Project performs geologic mapping at local and regional scales, and geologic research in The Valley and Ridge and Appalachian Plateaus physiographic provinces. These provinces include parts of 11 states and mainly borders the Blue Ridge / Piedmont and North Interior Lowlands Provinces. Two states have Valley and Ridge geology only (GA, NJ), two have...

Date published: May 23, 2019
Status: Active

Modeling Spatial Habitat Quality for the Cape Sable Seaside Sparrow

The Joint Ecosystem Modeling (JEM) team will develop species distribution models that incorporate hydrologic and habitat variables known to influence Cape Sable Seaside Sparrow occurrence.

Date published: May 23, 2019
Status: Active

Ecological Modeling in Support of the Western Everglades Restoration Project

Joint Ecosystem Modeling (JEM) provides ecological models tailored to address specific management issues, for example, the Western Everglades Restoration Project.

Date published: May 8, 2019
Status: Active

Historical Water-Use in Florida

The Florida Water-Use Program is an ongoing cooperative project between the United States Geological Survey (USGS), Caribbean-Florida Water Science Center and the Florida Department of Agriculture and Consumer Services (FDACS), Office of Agricultural Water Policy (http://www.freshfromflorida.com/Divisions-...

Date published: April 28, 2019
Status: Completed

Potential for Increased Inundation in Flood-Prone Regions of Southeast Florida in Response to Climate and Sea-Level Changes in Broward County, Florida, 2060–69

The U.S. Geological Survey, in cooperation with Broward County Environmental Planning and Resilience Division, has developed county-scale and local-scale groundwater/surface-water models to study the potential for increased inundation and flooding in eastern Broward County that are due to changes in future climate and sea-level rise. The purpose is to provide information that can be used to...

Date published: April 5, 2019
Status: Active

LCMAP Change Stories: Alabama Tornadoes

The USGS Land Change Monitoring, Assessment, and Projection initiative aims to identify where the landscape is changing and why.

Filter Total Items: 67
Date published: December 11, 2017

Gulf of Mexico Dashboard

The USGS Southeast Regional Office has funded a cross-center collaboration between the Wetland and Aquatic Research Center and the Texas Water Science Center for the development of the Gulf of Mexico Water Dashboard. 

Date published: October 4, 2017

Sex, length, total mass, fat mass, and specimen condition data for 248 Burmese pythons (Python bivittatus) collected in the Florida Everglade

These data were collected from Burmese pythons removed from the Florida everglades as part of invasive-species management. These data were used to validate several body condition indices in Burmese pythons.

Date published: September 1, 2017

National Water Information System web interface (NWISweb)

The National Water Information System (NWIS) web application provides access to real-time and historical surface-water, groundwater, water-quality, and water-use data collected at approximately 1.5 million sites across all 50 states.

Date published: June 6, 2017

Surface-water data for the South Atlantic Water Science Center (NWISWeb)

Real-time, daily, peak-flow, field measurements, and statistics of current and historical data that describe stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall in Georgia, South Carolina, and North Carolina.

Current Conditions:  Georgia...

Date published: June 3, 2017

Groundwater data for the South Atlantic Water Science Center (NWISWeb)

Data from wells, springs, test holes, tunnels, drains, and excavations in Georgia, South Carolina, and North Carolina; well location data includes information such as latitude and longitude, well depth, and aquifer. Current and historical observations, and daily data are offered.

Current Conditions: Georgia...

Date published: June 1, 2017

Water-quality data for the South Atlantic Water Science Center (NWISWeb)

Chemical, physical, and biological properties of water, sediment, and tissue samples from Georgia, South Carolina, and North Carolina. Water-quality data are collected as either discrete field measurements or as continuous time-series data from automated recorders.

Current Conditions:  ...

Date published: May 29, 2017

Real time precipitation data for Georgia, North Carolina, and South Carolina (NWISWeb)

Data from rain gages that provide real-time data are relayed to the USGS and are transmitted from each station at intervals of 1 to 8 hours. Real-time data available on these web pages are provisional data that have not been reviewed or edited.

Georgia  ||  ...

Date published: May 22, 2017

Water use data for the South Atlantic Water Science Center (NWISWeb)

Water-use data are collected by area type (state, county, watershed, or aquifer) and source (rivers or groundwater), and category (such as public supply or irrigation). Water-use data has been reported every five years since 1950. The USGS works with local, State, and Federal agencies as well as other organizations to collect and report withdrawals.


Date published: May 20, 2017

WaterWatch - View streamflow data using maps, graphs, and tables.

WaterWatch is a U.S. Geological Survey Web site that displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States. The real-time information generally is updated on an hourly basis.

Date published: May 17, 2017

Groundwater Watch - Below Normal Groundwater Levels (GA/NC/SC)

The U.S. Geological Survey has a database/archive of about 850,000 wells across the Nation. A well with below normal groundwater levels is identified when the most recent water-level measurement is in the 24th percentile or lower in the month of measurement over the period of record for the well.

Date published: May 12, 2017

Groundwater Watch - View groundwater data using maps, graphs, and tables.

These "groundwater watch" web pages group related wells and data from these active well networks, and provide basic statistics about the water-level data collected by USGS water science centers for Cooperative Programs, for Federal Programs, and from data supplied to us by our customers through cooperative agreements.

Filter Total Items: 39
Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

USGS Storm-Tide Mapper and Data Services
March 8, 2016

The USGS Storm Tide Mapper is a tool for viewing, analyzing, and accessing storm tide data collected during and after hurricanes and Nor’easters. The USGS Storm Tide Mapper will continue to provide a unified and consistent source of real-time and archived storm-tide data.

Rainfall Distribution Map for Charlotte, NC, 2015 December 29th
December 29, 2015

This map is based on data from more than 70 raingages operated by the U.S. Geological Survey in cooperation with the City of Charlotte and Mecklenburg County as part of the Flood Information and Notification System (FINS).

Image of North Carolina precipitation map
October 28, 2015

Map of North Carolina rain gages with National Weather Service precipitation overlays.

Rainfall Distribution Map for Charlotte, NC, 2015 August 19th
August 19, 2015

This map is based on data from more than 70 raingages operated by the U.S. Geological Survey in cooperation with the City of Charlotte and Mecklenburg County as part of the Flood Information and Notification System (FINS).

Map of precipitation gages in the Charlotte-Mecklenburg, North Carolina area
November 21, 2014

There are 72 sites collecting 5-minute interval precipitation data in the Charlotte-Mecklenburg Network.

Most sites use line-of-site radios to transmit the data to the USGS within minutes after data is recorded. These data are loaded in the USGS database before the next 5-minute interval and available online soon after.

Low Flow Map
May 1, 2014

As part of their mission to protect public health and aquatic ecosystems, Alabama state agencies need accurate and representative streamflow statistics to establish realistic and applicable criteria for both water quality and water quantity (fig. 1).

NWIS Mapper Screen Shot
May 21, 2013

Beta version 4 is now available for most states on a trial basis, and version 3 remains available. Beta version 4 provides a single user interface (at http://streamstatsags.cr.usgs.gov/streamstats/) for all states that are implemented, rather than separate applications for each state, as in versions 2 and 3, and the user interface is more user friendly than previous versions. 

a large map of the Fort Collins area
September 22, 2012

StreamStats is a Web-based tool that provides streamflow statistics, drainage-basin characteristics, and other information for USGS streamgaging stations and for user-selected ungaged sites on streams. When users select the location of a streamgaging station, StreamStats provides previously published information from a database. When users select a site on an ungaged stream, 

Black Warrior River Map
September 4, 2012

Static flood-inundation map libraries consist of maps that have been created in advance of a flood that are ready to be served through the Internet. Each library consists of a set of flood extent and depth maps developed for predetermined stream stage intervals (for example, a map for each one foot of stage).

Filter Total Items: 5,294
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Year Published: 2021

Airborne geophysical surveys of the lower Mississippi Valley demonstrate system-scale mapping of subsurface architecture

The Mississippi Alluvial Plain hosts one of the most prolific shallow aquifer systems in the United States but is experiencing chronic groundwater decline. The Reelfoot rift and New Madrid seismic zone underlie the region and represent an important and poorly understood seismic hazard. Despite its societal and economic importance, the shallow...

Minsley, Burke J; Rigby, James Robert; James, Stephanie R.; Burton, Bethany L.; Knierim, Katherine J.; Pace, Michael; Bedrosian, Paul A.; Kress, Wade

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Year Published: 2021

Climate and the latitudinal limits of subtropical reef development

Climate plays a central role in coral-reef development, especially in marginal environments. The high-latitude reefs of southeast Florida are currently non-accreting, relict systems with low coral cover. This region also did not support the extensive Late Pleistocene reef development observed in many other locations around the world; however,...

Toth, Lauren T.; Precht, William F.; Modys, Alexander B.; Stathakopoulos, Anastasios; Robbart, Martha L.; Hudson, J. Harold; Olenik, Anton E.; Riegl, Bernhard M; Shinn, Eugene A.; Aronson, Richard B.

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Year Published: 2021

Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity

Pesticides occur in urban streams globally, but the relation of occurrence to urbanization can be obscured by regional differences. In studies of five regions of the United States, we investigated the effect of region and urbanization on the occurrence and potential toxicity of dissolved pesticide mixtures. We analyzed 225 pesticide compounds in...

Nowell, Lisa H.; Moran, Patrick W.; Bexfield, Laura M.; Mahler, Barbara; Van Metre, Peter C.; Bradley, Paul; Schmidt, Travis S.; Button, Daniel T.; Qi, Sharon L.

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Year Published: 2021

Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation

IntroductionStructure from motion (SFM) has become an integral technique in coastal change assessment; the U.S. Geological Survey (USGS) used Agisoft Metashape Professional Edition photogrammetry software to develop a workflow that processes coastline aerial imagery collected in response to storms since Hurricane Florence in 2018. This report...

Over, Jin-Si R.; Ritchie, Andrew C.; Kranenburg, Christine J.; Brown, Jenna A.; Buscombe, Daniel D.; Noble, Tom; Sherwood, Christopher R.; Warrick, Jonathan A.; Wernette, Phillipe A.
Over, J.R., Ritchie, A.C., Kranenburg, C.J., Brown, J.A., Buscombe, D., Noble, T., Sherwood, C.R., Warrick, J.A., and Wernette, P.A., 2021, Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation: U.S. Geological Survey Open-File Report 2021–1039, 46 p., https://doi.org/10.3133/ofr20211039.

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Year Published: 2021

Seasonal controls on sediment delivery and hydrodynamics in a vegetated tidally influenced interdistributary island

River deltas are maintained by a continuous supply of terrestrial sediments that provide critical land building material to help sustain and protect vulnerable ecological communities and serve as natural storm protection barriers. Local hydrodynamics are important in determining the degree to which fluvial sediments are removed from the water...

Styles, Richard; Snedden, Gregg; Smith, S. Jarrell; Bryant, Duncan B.; Boyd, Brandon M.; Gailani, Joseph Z.; Couvillion, Brady; Race, Edward

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Year Published: 2021

Effects of climate and land-use change on thermal springs recharge—A system-based coupled surface-water and groundwater-flow model for Hot Springs National Park, Arkansas

A three-dimensional hydrogeologic framework of the Hot Springs anticlinorium beneath Hot Springs National Park, Arkansas, was constructed to represent the complex hydrogeology of the park and surrounding areas to depths exceeding 9,000 feet below ground surface. The framework, composed of 6 rock formations and 1 vertical fault emplaced beneath the...

Hart, Rheannon M.; Ikard, Scott J.; Hays, Phillip D.; Clark, Brian R.
Hart, R.M., Ikard, S.J., Hays, P.D., and Clark, B.R., 2021, Effects of climate and land-use change on thermal springs recharge—A system-based coupled surface-water and groundwater-flow model for Hot Springs National Park, Arkansas: U.S. Geological Survey Scientific Investigations Report 2021–5045, 38 p., https://doi.org/10.3133/sir20215045.

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Year Published: 2021

Abundance of Gulf Coast Waterdogs (Necturus beyeri) along Bayou Lacombe, Saint Tammany Parish, Louisiana

Few ecological studies have been conducted on Gulf Coast Waterdogs (Necturus beyeri), and published studies have focused on relatively small stream sections of 125 m to 1.75 km. In 2015, we sampled 25 sites along a 13.4-km stretch of Bayou Lacombe (Saint Tammany Parish, Louisiana, USA) to better understand factors that may influence the...

Glorioso, Brad; Waddle, Hardin; Muse, Lindy J.; Godfrey, Sidney T

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Year Published: 2021

Lateral shoreline erosion and shore-proximal sediment deposition on a coastal marsh from seasonal, storm and decadal measurements

The persistence of coastal marsh is dependent on its ability to maintain elevation relative to sea level, particularly for marshes experiencing high rates of shoreline erosion due to wave-attack, storms, and sea level rise. Sediments eroded at the marsh edge are either delivered onto the marsh platform or into the estuary, the...

Smith, Kathryn; Terrano, Joseph; Khan, Nicole S.; Smith, Christopher; Pitchford, Jonathan L

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Year Published: 2021

Spatial ecology of invasive Burmese pythons in southwestern Florida

Understanding the spatial ecology of an invasive species is critical for designing effective control programs. Determining and quantifying home range estimates and habitat associations can streamline targeted removal efforts for wide-ranging, cryptic animals. The Burmese python (Python bivittatus) is a large-bodied constrictor snake with an...

Bartoszek, Ian A.; Smith, Brian J.; Reed, Robert; Hart, Kristen

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Year Published: 2021

Magnitude and frequency of floods in the alluvial plain of the lower Mississippi River, 2017

Annual exceedance probability flows at gaged locations and regional regression equations used to estimate annual exceedance probability flows at ungaged locations were developed by the U.S. Geological Survey, in cooperation with the Mississippi Department of Transportation, to improve flood-frequency estimates at rural streams in the alluvial...

Anderson, Brandon T.
Anderson, B.T., 2021, Magnitude and frequency of floods in the alluvial plain of the lower Mississippi River, 2017: U.S. Geological Survey Scientific Investigations Report 2021–5046, 15 p., https://doi.org/10.3133/sir20215046.

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Year Published: 2021

Persistent multidecadal variability since the 15th century in the southern Barents Sea derived from annually resolved shell-based records

In the North Atlantic Ocean, multidecadal variability in sea surface temperatures (SSTs) over the past several centuries has largely been inferred through terrestrial proxies and decadally resolved marine proxies. Annually resolved proxy records from marine archives provide valuable insight into this variability, but are especially rare from high...

Mette, Madelyn Jean; Wanamaker, Alan D.; Retelle, Michael J.; Carroll, Michael L.; Andersson, Carin; Ambrose, William G.

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Year Published: 2021

Using systems thinking to inform management of imperiled species: A case study with sea turtles

Management of imperiled species facing spatiotemporally dynamic threats is difficult. Systems thinking can inform their management by quantifying the impacts that they face. We apply systems thinking to the Northern Gulf of Mexico (NGM) loggerhead (Caretta caretta) Recovery Unit (RU), one of the smallest subpopulations of loggerheads...

Silver-Gorges, Ian; Ceriani, Simona A.; Ware, Matthew; Lamb, Megan; Lamont, Margaret; Becker, Janice; Carthy, Raymond; Matechik, Chris; Mitchell, Joseph C.; Pruner, Raya; Reynolds, Mike; Smith, Bradley; Snyder, Caitlyn; Fuentes, Mariana M. P. B.

Filter Total Items: 497
USGS team with Wanda Vazquez-Garced, governor of Puerto Rico
January 15, 2020

USGS Earthquake Response team with governor of Puerto Rico

USGS team with Wanda Vazquez-Garced, governor of Puerto Rico. From left to right: Lindsay Davis, Wanda Vazquez, Dianne Lopez-Trujillo, Jonathan Godt, Donyelle Davis, Alex Grant

A brick building with blue trimmed windows and a blue sky
January 3, 2020

USGS St. Petersburg Studebaker Building

This historic brick Studebaker Building, originally built in 1925, was chosen as the location for the USGS St. Petersburg Coastal and Marine Science Center in the late 1980's. Many of the building’s original features are kept in tact to this day, including the Studebaker logos along the top of the building, and the Studebaker Distributor sign on the back of the building

December 23, 2019

Image of the Week - Festive Fields in North Carolina

The smell of a fresh cut Christmas tree can evoke visions of majestic evergreen forests teeming with winter wildlife. In truth, more than half of U.S. Christmas trees come from farms in Oregon, North Carolina, or Michigan. Cut Christmas Trees area commodity, tracked by the U.S. Department of Agriculture just like corn or soybeans. These USDA aerial images show tree harvest

Satellite imagery of eastern berm of Jim Foot Key in Florida Bay before Hurricane Irma and after
November 30, 2019

Impacts to island in Florida Bay following Hurricane Irma

Scientists from the Florence Bascom Geoscience Center first sampled four islands in Florida Bay, Everglades National Park, in April 2014 to collect cores to study sea level rise and storm history in the region.  In September 2017, Hurricane Irma (a category 4 storm at landfall in the Florida Keys) passed just to the west of our field sites.  The western-most of the four

November 21, 2019

Using Decision Tools to Design the Everglades Headwaters NWR

The U.S. Fish and Wildlife Service’s (FWS) Everglades Headwaters National Wildlife Refuge (EHNWR) is strategically located in Florida to protect upland and wetland habitats. The location of the new refuge was targeted to: address pressures from urbanization and climate change, provide improved quality of water flowing southward to the Greater Everglades, and protect

Georgia mineral commodity producing areas map from 2014 Minerals Yearbook
October 28, 2019

Mineral commodity producing areas of Georgia in 2014

The Georgia chapter of the Minerals Yearbook Volume II - Area Reports, Domestic - contains data and information on the nonfuel mineral commodities produced in Georgia including a generalized map of principal mineral commodity producing areas. The map is included in the PDF version; both PDF and XLS versions of text and data are available.

October 11, 2019

Earth as Art 6

The Earth As Art project began in the early 2000s, and its original intent remains the same: to produce images that do not look like satellite images at first glance. Earth As Art shows not only what satellites capture in the visible wavelengths of light you and I can see, but also what’s hiding in the invisible wavelengths that Landsat sensors can detect in the infrared

Flowing artesian well in Brunswick, Georgia, USA
October 7, 2019

Flowing artesian well in Brunswick, Georgia, USA

Groundwater in aquifers between layers of poorly permeable rock, such as clay or shale, may be confined under pressure. If such a confined aquifer is tapped by a well, water will rise above the top of the aquifer and may even flow from the well onto the

Stream gaging in Puerto Rico after Tropical Storm Karen:  finishing the visit
September 25, 2019

Stream gaging in PR after Tropical Storm Karen: finishing the visit

Stream gaging in Puerto Rico after Tropical Storm Karen: finishing the visit – Manuel Rosario, with the Caribbean-Florida Water Science Center, walks to the gage house after completing a discharge measurement September 25.

Stream gaging in Puerto Rico after Tropical Storm Karen: tethered ADCP
September 25, 2019

Stream gaging in Puerto Rico after Tropical Storm Karen: tethered ADCP

Stream gaging in Puerto Rico after Tropical Storm Karen: tethered ADCP – A tethered acoustic Doppler current profiler (ADCP) is pulled through a cross section of Rio de La Plata near Toa Alta, Puerto Rico, September 25, 2019. Hydrologic technicians with the Caribbean-Florida Water Science Center visited multiple USGS stream gage sites to make high flow

Stream gaging in Puerto Rico after Tropical Storm Karen: computer
September 25, 2019

Stream gaging in Puerto Rico after Tropical Storm Karen: computer

Stream gaging in Puerto Rico after Tropical Storm Karen: computer – Gage height and precipitation data recorded by sensors and measured manually are logged into an electronic notebook, September 25.

Stream gaging in Puerto Rico after Tropical Storm Karen: Crest Stage Gage
September 25, 2019

Stream gaging in PR after Tropical Storm Karen: Crest Stage Gage

Stream gaging in Puerto Rico after Tropical Storm Karen: Crest Stage Gage – The distance of a cork line from a known gage height is measured September 25. The cork line was left on a crest stage gage after a high flow event.

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Hydrologic tehcnician collects a sample of untreated groundwater from a public-supply well
April 7, 2020

Groundwater in the Atlantic and Gulf Coastal Plain aquifers is old—more than 21,300 years old in more than half of 252 public-supply wells sampled. That ancient groundwater is more likely to contain concentrations of fluoride, arsenic, and polonium-210 that exceed human-health benchmarks than is younger groundwater, reports a new study from the USGS National Water Quality Program.

Woman stands besides scientific equipment on the deck of a ship.
March 30, 2020

By understanding modern changes in temperature, and therefore past changes in the climate of the Gulf of Mexico, scientists can better predict climate changes in Earth’s future– just by studying teeny tiny forams.

Aeirial view of landslides blocking roads  in Utuado, Puerto Rico
March 19, 2020

A new U.S. Geological Survey map of Puerto Rico shows the relative risks of landslides due to the kind of intense rainfall brought on by hurricanes. It identifies 20%  of the island as at high risk, 9% at very high risk, and 1% at extremely high risk of landslides under those conditions. 

Magnitude 5.8 in Puerto Rico
January 29, 2020

Links to forecasts and scenerios (below) will continue to be updated, however, text in this story will not be updated unless there is significant change to the aftershock behavior or to the USGS response to the earthquake. 

7-day aftershock forecast [English]

30-day aftershock scenarios [English | Spanish]

seismic stations
January 17, 2020

A sequence of earthquakes in southwest Puerto Rico continues to affect people living there, with the largest recent aftershock a magnitude 5.2 on Jan. 15. U.S. Geological Survey scientists on the island and the mainland are providing up-to-date scientific information to help the Commonwealth government and the Federal Emergency Management Agency make decisions that protect the public.

jet ski exhibit at St. Petersburg Science Festival
December 31, 2019

USGS participated in the the St. Petersburg Science Festival, an annual event held in downtown St. Petersburg, Florida, that invites local schools and the science-interested public to come explore topics in the fields of Science, Technology, Engineering, Arts, and Mathematics (STEAM).

Image shows a map of the Eastern United States with the boundaries of the Marcellus Shale superimposed
October 3, 2019

The Marcellus Shale and Point Pleasant-Utica Shale formations of the Appalachian Basin contain an estimated mean of 214 trillion cubic feet of undiscovered, technically recoverable continuous resources of natural gas, according to new USGS assessments.

Image shows a satellite image of Hurricane Dorian as it approaches Florida
September 2, 2019

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Dorian, visit the USGS Hurricane Dorian page at www.usgs.gov/dorian.

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