Regions

Southeast

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We conduct impartial, multi- and interdisciplinary research and monitoring to address a broad range of natural-resource issues that affect the quality of life of citizens and landscapes in the Southeastern United States and the Caribbean region.

Current Water Conditions

                                Current Water Conditions

Get real-time and historical surface-water, groundwater, and water-quality conditions and data for states in the Southeast region. Our data is accessible via forms and lists or from a map-based system.

Get water data

Learn About Water!

Learn About Water!

The USGS has created a water-cycle diagram for schools and "kids" ages 5-95. The diagram is available in over 20 languages. An interactive diagram is available to let you "mouse around" the parts water cycle and view explanations and see pictures.

Start learning!

Wetland and Aquatic Research Center (WARC)

Wetland and Aquatic Research Center (WARC)

The Wetland and Aquatic Research Center (WARC) provides science with impact to ensure that its research is relevant and useful for resource managers, policy makers, and the public.

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News

A healthy coral reef at Buck Island, U.S. Virgin Island
April 20, 2017

In the first ecosystem-wide study of changing sea depths at five large coral reef tracts in Florida, the Caribbean and Hawai’i, U.S. Geological Survey researchers found the sea floor is eroding in all five places, and the reefs cannot keep pace with sea level rise. As a result, coastal communities protected by the reefs are facing increased risks from storms, waves and erosion.

American Alligator and Burmese Python in a Struggle
April 13, 2017

Dr. Bryan Falk (USGS Research Fellow based in Everglades National Park) briefed U.S. Congressman Mario Díaz-Balart (Florida 25th district, which includes Big Cypress National Preserve and a portion of Everglades National Park) on invasive species issues. 

A Manatee swimming in Florida waters.
April 11, 2017

Florida’s iconic manatee population is highly likely to endure for the next 100 years, so long as wildlife managers continue to protect the marine mammals and their habitat, a new study by the US Geological Survey and the Florida Fish and Wildlife Research Institute has found.

We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and landscapes of the Southeastern United States and the Caribbean region.

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Flow diagram of relationships between watershed stressors and aquatic health
April 12, 2017

How is stream ecology affected by chemical and physical stressors in small streams? The USGS is addressing this question through studies of relations between stressors and stream ecology across large regions of the United States.

Regional Stream Quality Assessments  ||  ...

Fish Slam 2016 group
March 16, 2017

Dozens of species of non-native fishes are present in the freshwaters of Florida, and new species are discovered each year. Maintaining current information on the geographic ranges of all non-native fishes is a daunting task, as many jurisdictions are involved at the state, federal, and municipal levels. There is a need to coordinate sampling, research and management across...

Disentangling the mechanisms regulating coastal wetland sustainability in the face of rising sea levels
March 14, 2017

USGS scientists have been involved for a number of years in the development and use of Structural Equation Modeling (SEM). This methodology represents an approach to statistical modeling that focuses on the study of complex cause-effect hypotheses about the mechanisms operating in systems. SEM is increasingly used in ecological and environmental studies and this site seeks to provide...

Shrimp Boat on Mobile Bay
January 30, 2017

Human alteration of waterways has impacted the minimum and maximum streamflows in more than 86% of monitored streams nationally and may be the primary cause for ecological impairment in river and stream ecosystems. Restoration of freshwater inflows can positively affect shellfish, fisheries, habitat, and water quality in streams, rivers, and estuaries. Increasingly, state and local decision-...

Buffalo River below Lobeville, Tennessee Discharge
January 25, 2017

This is where you can view basic hydrologic data collection at selected streams in Tennessee. To learn more please visit http://tn.water.usgs.gov/projects/TVA/index.html...

Big Turnbull Creek near Tidwell, Tennessee Turbidity Graph
January 25, 2017

A study involving suspended-sediment and turbidity monitoring at streamgaging stations near the segment of State Route 840 under construction between Fairview and Bending Chestnut. To learn more please visit: http://tn.water.usgs.gov/projects/turbidity/index.html...

Tennessee River (TENN) Basin Study Illustration
January 25, 2017

The Tennessee (TENN) River Basin encompasses an area of 40,890 square miles, making it the largest tributary to the Ohio River. The Tennessee River flows through portions of seven states: Virginia, North Carolina, Tennessee, Alabama, Georgia, Mississippi, and Kentucky. To learn more please visit: http://tn.water.usgs.gov/lten/tenn....

Stream in Boston Mountains - Arkansas
January 19, 2017

LMG-WSC hydrologist, in collaboration with Arkansas Natural Resource Commission scientist are analyzing stream channel geomorphic characteristics at 15 gaged stable stream sites in the Boston Mountains of Arkansas. Field data collection entails topographic surveys of selected stream reaches and analysis of bed and bar sediments. Topographic surveys, running from hundreds to thousands of feet,...

MAP study area
December 13, 2016

The Mississippi Alluvial Plain is one of the most productive agricultural regions in the Nation and depends on groundwater for irrigation. The MAP area constitutes the third largest area of irrigated cropland in the United States. The area is approximately 29,000 square miles (19 million acres) and includes parts of the States...

Scientist collecting stream data
December 5, 2016

The Challenge: The DOI WaterSMART (Sustain and Manage America’s Resources for Tomorrow) initiative is developing data and tools to help water managers identify current and future water shortages, for humans and for freshwater ecosystems. Fishes, for example, can decline in diversity and abundance when streamflow becomes too low, for too long.  However, ecologists find that effects...

A Burmese python coiled in the grass in the Everglades.
December 4, 2016

Invasive species are considered to be second only to habitat degradation in terms of negative impacts on the Earth’s ecosystems, and our scientists make up a significant proportion of the global expertise in the rapidly-growing problem of invasive reptiles....

Everglades National Park
December 2, 2016

The Daniel Beard Center in Everglades National Park provides the base for most of the field work done on the control of invasive reptiles by USGS Fort Collins Science Center staff. The team works in Everglades National Park, Big Cypress National Preserve, Crocodile Lake National Wildlife Refuge, and other parts of the Greater Everglades Ecosystem focusing on, among other species of concern,...

We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and landscapes of the Southeastern United States and the Caribbean region.

USGS National Water Data Portal
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Image from Streamstats application of Georgia, North and South Carolina
April 5, 2017

Geospatial (GIS) and Map Resources for Georgia, North and South Carolina

Map and Geographical Information System (GIS) resources for the South Atlantic

Field Guide to the Nonindigenous Marine Fishes of Florida publication cover
January 30, 2017

Field Guide to the Nonindigenous Marine Fishes of Florida

The purpose of this field guide is to provide information on nonindigenous
(i.e., non-native) fishes that have been observed in Florida’s marine waters.

Tennessee Current Water Conditions Image
November 29, 2016

Tennessee Current Water Conditions

See Current Water Conditions for Tennessee using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality.

Louisiana Current Water Conditions Image
November 29, 2016

Louisiana Current Water Conditions

See Current Water Conditions for Louisiana using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality.

Mississippi Current Water Conditions Image
November 29, 2016

Mississippi Current Water Conditions

See Current Water Conditions for Mississippi using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality.

Arkansas Current Water Conditions Image
November 29, 2016

Arkansas Current Water Conditions

See Current Water Conditions for Arkansas using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality.

Alabama Current Water Conditions Image
November 29, 2016

Alabama Current Water Conditions

See Current Water Conditions for Alabama using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality. 

Interactive Mapper screen grab: Potential coastal change impacts during a direct landfall of Hurricane Matthew: NHC Advisory 033
October 7, 2016

Coastal Change Hazards Portal

Information and products are organized within three coastal change hazard themes: 1) extreme storms, 2) shoreline change, and 3) sea-level rise. Each data item represents an individual research product, with some items grouped together as aggregates to show the breadth of the topic and make it easy to explore.

Map of below normal 7-day average streamflow compared to historical streamflow for the day of year (Tennessee)
September 26, 2016

Tennessee Droughtwatch

Map of below normal 7-day average streamflow compared to historical streamflow for the day of year (Tennessee)

Memphis Area Groundwater-Level Network Map
September 26, 2016

Memphis Area Groundwater-Level Network

Groundwater Watch is a supplemental tool to NWISWeb and, as such, is able to provide additional benefits to the groundwater community. NWIS is the authoritative database for USGS groundwater data, and NWISWeb is the public interface for these groundwater data. This is information pertaining to the Memphis Area Groundwater-Level Network.

SLR graphic
April 21, 2016

Sea-Level Rise Visualization for Alabama and Mississippi

The interactive sea-level rise visualization tool results from a collaborative effort between NOAA's Coastal Services Center, USGS WARC, and USGS Mississippi Water Science Center. The tool illustrates the scale of potential flooding, but not the exact location, and does not account for erosion, subsidence, sediment accretion, or future construction. 

MsCIP logo
April 21, 2016

Mississippi Coastal Improvements Program (MsCIP) Barrier Island Restoration

MsCIP was developed in 2009 by the U.S. Army Corps of Engineers, Mobile District, in conjunction with other Federal and State agencies, to help reduce future storm damage along the Mississippi Gulf coast. In 2014, in cooperation with the USACE Mobile District, WARC's Advanced Applications Team began development on the MsCIP Data Viewer, an interactive web-mapping environment. 

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Louisiana
September 30, 2016

River and Coastal Forecast Information

Lower Mississippi River Forecast Center, Slidell, Louisiana—(NWS)

 

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.

Map shows color-coded seafloor character offshore of Monterey, California
March 7, 2016

This portal is a “go to” source for maps related to ocean and coastal mapping. Information is organized by geography or region, by theme, and by the year data was published.

small excerpt of Yosemite Valley topographic map in shades of green and brown
September 30, 2005

River and Coastal Forecast Information

Mississippi and Ohio River 7-Day Summary and Forecast

 

Sparta Aquifer Monitoring and Sampling Map - AR/LA
November 10, 2003

The Union County Water Conservation Board with funding from the U.S. Environmental Protection Agency began a study in 2003 with the U.S. Geological Survey, the Union County Conservation District, Burns & McDonnell to monitor the impact of water-level recovery and water-quality characteristics of the Sparta aquifer system in southern Arkansas and northern Louisiana.

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Mangroves, hurricanes, and lightning strikes: Assessment of Hurricane Andrew suggests an interaction across two differing scales of disturbance
Year Published: 1994

Mangroves, hurricanes, and lightning strikes: Assessment of Hurricane Andrew suggests an interaction across two differing scales of disturbance

The track of Hurricane Andrew carried it across one of the most extensive mangrove for ests in the New World.

Smith, Thomas J.; Robblee, Michael B.; Wanless, Harold R.; Doyle, Thomas W.
Effects of wastewater on forested wetlands
Year Published: 2002

Effects of wastewater on forested wetlands

Cycling nutrient-enriched wastewater from holding ponds through natural, forested wetlands is a practice that municipal waste treatment managers are considering as a viable option for disposing of wastewater. In this wastewater cycling process, sewer effluent that has been circulated through aerated ponds is discharged into neighboring wetland...

Doyle, Thomas W.
Effects of Wastewater on Forested Wetlands; 2002; FS; 104-02; Doyle, Thomas W.
History and ecology of mangroves in the Dry Tortugas
Year Published: 2002

History and ecology of mangroves in the Dry Tortugas

Dry Tortugas National Park, which includes Bush, Long, Loggerhead, Garden, and Bird Keys, is a cluster of islands and coral reefs approximately 112.9 km (70 miles) west of Key West, Florida (fig. 1). These islands were explored in 1513 by Ponce de León, who named them for the abundance of sea turtles, “tortugas,” and the lack of fresh water in the...

Doyle, T.W.; Michot, T.C.; Day, Richard H.; Wells, C.J.
History and Ecology of Mangroves in the Dry Tortugas; 2002; FS; 047-02; Doyle, T. W.; Michot, T. C.; Day, R.H.; Wells, C. J.
Estimated Use of Water in the Tennessee River Watershed in 2000 and Projections of Water Use to 2030
Year Published: 2003

Estimated Use of Water in the Tennessee River Watershed in 2000 and Projections of Water Use to 2030

The Tennessee River system is the Nation’s fifth largest river system with a 40,910 mi2 drainage area. The Tennessee water-resources region (WRR), which corresponds to the Tennessee River watershed, ranked tenth among the 21 nationally designated WRRs in the United States in the volume of average daily withdrawals of freshwater in 1995. These...

Susan S. Hutson, M. Carolyn Koroa, and C. Michael Murphree
Case, P.J., and Alward, G.S., 1997, Patterns of demographic, economic, and value change in the western United States: Implications for water use and management: Report to the Western Water Policy Review Advisory Commission, 35 p. Hutson, S.S., Vines, C.A., and Keck, L.A., 1990, Tennessee: Water supply and use, in National Water Summary 1987—Hydrologic events and water supply and use: U.S. Geological Survey Water-Supply Paper 2350, p. 467-474. MacKichan, K.A., 1951, Estimated water use in the United States, 1950: U.S. Geological Survey Circular 115, 13 p. MacKichan, K.A., 1957, Estimated water use in the United States, 1955: U.S. Geological Survey Circular 398, 18 p. MacKichan, K.A., and Kammerer, J.C., 1961, Estimated use of water in the United States, 1960: U.S. Geological Survey Circular 456, 26 p. March, P.A., and Fisher, R.K., 1999, It’s not easy being green: Environmental technologies enhance conventional hydropower’s role in sustainable development: Annual Review of Energy and the Environment, v. 24, p. 173-188. Moore, M.R., Crosswhite, W.M., and Hostetler, J.E., 1990, Agricultural water use in the United States, 1950-85, in National Water Summary 1987: U.S. Geological Survey Water-Supply Paper 2350, p. 93-108. Murray, C.R., 1968, Estimated use of water in the United States, 1965: U.S. Geological Survey Circular 556, 53 p. Murray, C.R., and Reeves, E.B., 1972, Estimated use of water in the United States in 1970: U.S. Geological Survey Circular 676, 37 p. Murray, C.R., and Reeves, E.B., 1977, Estimated use of water in the United States, 1975: U.S. Geological Survey Circular 765, 39 p. Office of Management and Budget, 1987, Standard Industrial Classification Manual 1987, 705 p. Seaber, P.R., Kapinos, F.P., and Knapp, G.L., 1984, State hydrologic unit maps: U.S. Geological Survey OpenFile Report 84-708, 198 p. Solley, W.B., Chase, E.B., and Mann, W.B., IV, 1983, Estimated use of water in the United States in 1980: U.S. Geological Survey Circular 1001, 56 p. Solley, W.B., Merk, C.F., and Pierce, R.R., 1988, Estimated use of water in the United States in 1985: U.S. Geological Survey Circular 1004, 82 p. Solley, W.B., Pierce, R.R., and Perlman, H.A., 1993, Estimated use of water in the United States in 1990: U.S. Geological Survey Circular 1081, 76 p. Solley, W.B., Pierce, R.R., and Perlman, H.A., 1998, Estimated use of water in the United States in 1995: U.S. Geological Survey Circular 1200, 71 p. Tennessee Valley Authority, 1990, Tennessee River and reservoir operation and planning review, Final Environmental Impact Statement, 198 p. Tennessee Valley Authority, 2002, Reservoir Operations Study: accessed July 14, 2003 at http://www.tva.gov U.S. Bureau of the Census, 2001, United States Census 2000: accessed July 9, 2003 at http://www.census.gov/main/www/cen2000.html U.S. Department of Commerce, 2001, Bureau of Economic Analysis, Regional economic data: accessed July 14, 2003 at http://www.bea.gov U.S. Department of Energy, Energy Information Administration, 2000a, Monthly Power Plant Report, EIA-906: accessed July 14, 2003 at http://www.eia.doe.gov/ cneaf/electricity/page/data.html U.S. Department of Energy, Energy Information Administration, 2000b, Steam-Electric Plant Operation and Design Report, EIA-767: accessed July 14, 2003 at http://www.eia.doe.gov/cneaf/electricity/page/ data.html U.S. Environmental Protection Agency, 2001, Permit Compliance System Water discharge permits: accessed July 14, 2003 at http://www.epa.gov/enviro/html/pcs U.S. Environmental Protection Agency, 2002, National Pollution Elimination Discharge System (NPDES): accessed July 14, 2003 at http://cfpub.epa.gov/npdes/ U.S. Geological Survey, 2002, Water use in the United States: accessed July 14, 2003 at http://water.usgs.gov/watuse Woods and Poole Economics, Inc., 2001, Complete database, [machine-readable data files], http://www.woodsandpoole.com
Effects of hydrology on red mangrove recruits
Year Published: 2003

Effects of hydrology on red mangrove recruits

Coastal wetlands along the Gulf of Mexico have been experiencing significant shifts in hydrology and salinity levels over the past century as a result of changes in sea level and freshwater drainage patterns. Local land management in coastal zones has also impacted the hydrologic regimes of salt marshes and mangrove areas. Parks and refuges in...

Doyle, Thomas W.
Effects of Hydrology on Red Mangrove Recruits; 2003; FS; 029-03; Doyle, Thomas W.
Field guide to the major organisms and processes building reefs and islands of the Dry Tortugas: the Carnegie Dry Tortugas Laboratory Centennial Celebration (1905-2005)
Year Published: 2005

Field guide to the major organisms and processes building reefs and islands of the Dry Tortugas: the Carnegie Dry Tortugas Laboratory Centennial Celebration (1905-2005)

This guide to the geology and biology of the Dry Tortugas is divided into four sections: 1) geologic and anthropogenic features you will pass on your trip to and from the Tortugas, 2) a summary of items of Tortugas geologic, historic, and human interest and what you will experience at Loggerhead Key while walking and snorkeling, 3) a summary of...

Shinn, Eugene A.; Jaap, Walter C.
Field guide to the major organisms and processes building reefs and islands of the Dry Tortugas: the Carnegie Dry Tortugas Laboratory Centennial Celebration (1905-2005); 2005; OFR; 2005-1357; Shinn, Eugene A.; Jaap, Walter C.
Potential effects of elevated atmospheric carbon dioxide (CO2) on coastal wetlands
Year Published: 2006

Potential effects of elevated atmospheric carbon dioxide (CO2) on coastal wetlands

Carbon dioxide (CO2) concentration in the atmosphere has steadily increased from 280 parts per million (ppm) in preindustrial times to 381 ppm today and is predicted by some models to double within the next century. Some of the important pathways whereby changes in atmospheric CO2 may impact coastal wetlands include changes in temperature,...

McKee, Karen
Potential Effects of Elevated Atmospheric Carbon Dioxide (CO<sub>2</sub>) on Coastal Wetlands; 2006; FS; 2006-3074; McKee, Karen
Assessment and control of an invasive aquaculture species: An update on Nile tilapia (Oreochromis niloticus) in coastal Mississippi after Hurricane Katrina
Year Published: 2007

Assessment and control of an invasive aquaculture species: An update on Nile tilapia (Oreochromis niloticus) in coastal Mississippi after Hurricane Katrina

We provide information about the effects of Hurricane Katrina on populations of an invasive fish, the Nile tilapia (Oreochromis niloticus) in southern Mississippi. By resampling areas surveyed before the storm, we attempted to determine whether the species expanded its range by moving with storm-related floods. Additionally, we used rotenone to...

Schofield, Pamela J.; Slack, W. Todd; Peterson, Mark S.; Gregoire, Denise R.
A deep reef in deep trouble
Year Published: 2007

A deep reef in deep trouble

Menza, Charles; Kendall, M.; Rogers, C.; Miller, J.
A deep reef in deep trouble; 2007; Article; Journal; Continental Shelf Research; Menza, C.; Kendall, M.; Rogers, C.; Miller, J.
Exploring the temporal effects of seasonal water availability on the snail kite of Florida: Part III
Year Published: 2007

Exploring the temporal effects of seasonal water availability on the snail kite of Florida: Part III

The Florida snail kite (Rostrhamus sociabilis) is an endangered raptor that occurs as an isolated population, currently of about 2,000 birds, in the wetlands of southern and central Florida, USA. Its exclusive prey species, the apple snail (Pomacea paludosa) is strongly influenced by seasonal changes in water abundance. Droughts during the snail...

Mooij, Wolf M.; Martin, Julien; Kitchens, Wiley M.; DeAngelis, Donald L.
Characterization of Northern Gulf of Mexico Deepwater Hard Bottom Communities with Emphasis on Lophelia Coral - Lophelia Reef Megafaunal Community Structure, Biotopes, Genetics, Microbial Ecology, and Geology (2004–2006)
Year Published: 2008

Characterization of Northern Gulf of Mexico Deepwater Hard Bottom Communities with Emphasis on Lophelia Coral - Lophelia Reef Megafaunal Community Structure, Biotopes, Genetics, Microbial Ecology, and Geology (2004–2006)

Sulak, Kenneth J.; Randall, Michael; Luke, Kirsten E.; Norem, April D.; Miller, Jana M.
Sulak, K.J., Randall, M.T., Luke, K.E., Norem, A.D., and Miller, J.M., (eds.), 2008, Characterization of Northern Gulf of Mexico deepwater hard bottom communities with emphasis on <i>Lophelia</i> coral--<i>Lophelia</i> reef megafaunal community structure, biotopes, genetics, microbial ecology, and geology (2004–2006): U.S. Geological Survey Open-File Report 2008–1148; OCS Study MMS 2008–015, http://dx.doi.org/10.3133/ofr20081148.
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Pike killifish found in Big Cypress
March 23, 2017
The pike killifish, native to Mexico and Central America, was one of 13 nonnative fish species that biologists discovered during the two-day Fish Slam in Big Cypress National Preserve, March 22 and 23, 2017.
Three sailfin catfish found in the Big Cypress National Preserve
March 23, 2017
The sailfin catfish is one of 13 species of nonnative fish that biologists discovered during the Fish Slam in Big Cypress National Preserve, March 23, 2017.
Perfect Crop Row with USGS Gage in the distance by Shane Stocks
2016 (approx.)
This image is of a perfect row in a field with a USGS Gage in the background. The image was taken by Shane Stocks out of the LMG Jackson, MS office.
The Chimney Tops 2 fire in Great Smoky Mountains National Park
November 2016 (approx.)
The fire that became known as Chimney Tops 2 started near a Great Smoky Mountains National Park landmark known as The Chimneys on or about Nov. 23, 2016.
Smoky Mountain fires on the night of Nov. 28, 2016
November 28, 2016
In an extreme drought and amid high winds, many fires burned together in Great Smoky Mountains National Park, the town of Gatlinburg and nearby communities to form the deadly fire that became known as Chimney Tops 2. This photo was taken on the night of Nov. 28, 2016, as the fire was spreading rapidly.
October 7, 2016
This was a Facebook Live Video conducted with USGS Hydrologist, Brian McCallum from the South Atlantic Water Science Center in Norcross, GA. The original URL for this Facebook Live video is at: https://www.facebook.com/USGeologicalSurvey/videos/1179388798773768/
August 27, 2016
This was a Facebook Live video conducted with James Fountain of the USGS discussing the Louisiana flooding in August 2016 and the personal experience James had with this event. Questions and comments during the live video at: https://www.facebook.com/USGeologicalSurvey/videos/1144228595623122/
Two men stand next to a building in yellow life jackets
August 26, 2016
Chris Henry and Daniel McCay, USGS hydrologic technicians, use GPS equipment to survey a high-water mark outside of a flooded elementary school in Denham Springs, Louisiana, August 28. This school was located in one of the hardest hit flood areas and the blue line simulates how high the water was at its peak during this historic flood.
Two men mark a high-water mark on a structure
August 26, 2016
Daniel McCay and Chris Henry, USGS hydrologic technicians, use a level to draw a line on a high-water mark August 26. In most circumstances, when a high-water mark is flagged it would then be surveyed with GPS equipment to obtain its exact coordinates and elevation. However, because of the possibility of more storms hitting Louisiana the teams were initially only flagging marks at first, in order...
A man in an orange shirt writes on a pad of paper
August 26, 2016
Jonathan Gillip, USGS hydrologist, documents a high-water mark he flagged near a damage retirement community in Denham Springs, Louisiana, August 26. So far, USGS teams have flagged and surveyed more than 400 high-watermarks across southern Louisiana.
Two men walk by debris along the side of the road
August 26, 2016
Daniel McCay and Chris Henry, U.S. Geological Survey hydrologic technicians, search a neighborhood south of Denham Springs, Louisiana, for high-water marks August 26. The term high-water mark refers to the debris flood waters will leave on walls, buildings and trees. This thin line of residue is an indicator of how high the waters reached, yet the fragile nature of these marks means they must be...
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A healthy coral reef at Buck Island, U.S. Virgin Island
April 20, 2017

In the first ecosystem-wide study of changing sea depths at five large coral reef tracts in Florida, the Caribbean and Hawai’i, U.S. Geological Survey researchers found the sea floor is eroding in all five places, and the reefs cannot keep pace with sea level rise. As a result, coastal communities protected by the reefs are facing increased risks from storms, waves and erosion.

American Alligator and Burmese Python in a Struggle
April 13, 2017

Dr. Bryan Falk (USGS Research Fellow based in Everglades National Park) briefed U.S. Congressman Mario Díaz-Balart (Florida 25th district, which includes Big Cypress National Preserve and a portion of Everglades National Park) on invasive species issues. 

A Manatee swimming in Florida waters.
April 11, 2017

Florida’s iconic manatee population is highly likely to endure for the next 100 years, so long as wildlife managers continue to protect the marine mammals and their habitat, a new study by the US Geological Survey and the Florida Fish and Wildlife Research Institute has found.

Manatee
April 11, 2017

We appreciate your interest in USGS' Sirenia Project. To help inform members of the media and public, we have provided relevant publications, reports, and websites. 

The Caernarvon Freshwater Diversion structure, located at the head of Breton Sound Estuary, became operational in 1992.
February 8, 2017

New research shows how river diversions may change water quality in estuaries. 

Wading birds feed near wooden posts marking a research site in a Louisiana salt marsh
January 25, 2017

Changes in rainfall and temperature are predicted to transform wetlands in the Gulf of Mexico and around the world within the century, a new study from the USGS and the University of Texas Rio Grande Valley concludes.

A SCUBA diver beside a Massive starlet coral on the sea floor at Dry Tortugas National Park
January 25, 2017

Boulder corals in the waters of Dry Tortugas National Park, 70 miles from Key West, contain evidence that confirms a centuries-old sea temperature cycle linked to rains, droughts and hurricanes.

Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 19, 2017

A regional assessment of untreated groundwater in the Coastal Lowlands aquifer system in the southeastern United States is now available from the U.S. Geological Survey.

Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 19, 2017

A regional assessment of untreated groundwater in the Southeastern Coastal Plain aquifer system is now available from the U.S. Geological Survey.

Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 19, 2017

A regional assessment of untreated groundwater in the combined Valley and Ridge and Piedmont and Blue Ridge aquifers in the eastern United States is now available from the U.S. Geological Survey.

This picture was taken June 23, 2010 along the Louisiana shoreline in Barataria Bay and shows oil spilled from Deepwater Horizon
November 17, 2016

A new USGS-NASA study found widespread shoreline loss along heavily oiled areas of Louisiana's coast after the 2010 BP Deepwater Horizon oil spill and compared the erosion from the spill with coastal changes Hurricane Isaac caused in 2012.