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World class scientists working in Southeast Region Science Centers help our partners understand and manage complex issues including competition for limited water resources, coastal hazards, mineral and energy resource extraction, degraded ecosystems, vector-borne diseases, rapidly changing land use, and response to climate change.

News

Distant view of sandy yellow beach stretching from bottom left to upper right of photo.
November 8, 2017

Coastal communities count on beaches for recreation and for protection from large waves, but beaches are vulnerable to threats such as erosion by storms and flooding. Whether beaches grow, shrink, or even disappear depends in part on what happens just offshore. How do features like shifting sandbars affect waves, currents, and the movement of sand from the beach to offshore and back?

This green disc identifies a USGS High-Water Mark, which was found south of Jacksonville, Florida, September 27, on a canal.
September 28, 2017

Reporters: Do you want to accompany a USGS field crew as they work in the field to document how high the flood waters and storm surge from Hurricane Irma reached around the Jacksonville, Tampa and Fort Myers Areas?

If so, please contact Jeanne Robbins, jrobbins@usgs.gov, 919-571-4017.  

Boat thrown onto land from Hurricane Irma's surge at a ramp in St. Augustine, Florida
September 19, 2017

Editor’s note: this news release will be updated online with more information on the streamgage records being set in Florida as it becomes available

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Male Okaloosa darter
September 26, 2017

This website provides access to the list of imperiled freshwater and diadromous fishes of North America as determined by the 2008 American Fisheries Society (AFS) Endangered Species Committee (ESC) on Fishes.

Map of Ten Thousand Islands, Florida
August 1, 2017

Mangroves have decreased worldwide due to human development, climate change and other forces. In southwest Florida, tremendous growth and development pressure has resulted in appreciable losses in mangrove wetlands.

Blue tilapia (Oreochromis aureus)
March 22, 2017

22-23 March 2017 - Ten teams of fishery biologists sampled 28 sites amid unexpected wildfires in the Big Cypress National Preserve over the two day period. On the second day a reporter from the Miami Herald accompanied a ground crew team.

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 jurisdictional...

An adult female surf scoter resting in the water
February 16, 2017

The Seabird Research Program at PWRC is focused on studying the ecology of species present across the Atlantic Coast. This program was a natural progression of PWRC's historic work studying the coastal ecology of wildlife in and around the Chesapeake Bay. We now focus on the three key areas on a variety of species: physiology, avoided bycatch, and movement ecology.

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,...

Sampling water for amphibian research
November 2, 2016

The U.S. Geological Survey's (USGS) Amphibian Research and Monitoring Initiative (ARMI) began in 2000 with the goal of determining the status and trends of amphibian populations throughout the U.S. The program was designed to provide information useful in determining causes of declines or other changes in population distributions.  Personnel in the South Atlantic Water Science Center are...

Backpack electrofishing crew at Pinecrest Gardens
November 1, 2016

November 1 - 2, 2016 – Eight teams of fishery biologists from the US Geological Survey (USGS), US Fish and Wildlife Service - Peninsular Florida Fisheries Office and Welaka National Fish Hatchery (USFWS), the National Park Service (NPS), Florida Fish and Wildlife Conservation Commission (FWC), Florida International University (FIU), and Zoo Miami sampled 20 sites for non-native fishes in Palm...

West Indian manatees
October 21, 2016

Population models developed by USGS are the primary decision-support tools used for status assessments, and rely on estimates of adult survival and reproduction rates from mark-recapture studies.

West Indian manatees, Trichechus manatus
October 19, 2016

The Challenge: Florida manatees are threatened by watercraft-related mortality, the potential loss of warmwater habitat, red tide events, and other anthropogenic factors. The USFWS and the Florida Fish and Wildlife Conservation Commission have regulatory authorities under the Endangered Species Act (ESA), the Marine Mammal Protection Act (MMPA), and state statutes to recover manatees. To...

Florida Manatee with a tracking devise attached
October 16, 2016

Long-term monitoring data in the Manatee Individual Photo-identification System (MIPS), developed and coordinated by WARC-Sirenia Project in collaboration with Florida’s Fish and Wildlife Research Institute and Mote Marine Laboratory, are the basis for modeling manatee demography rates.

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USGS logo green
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.

Application screenshot thumbnail
September 1, 2017

National Water Information System (NWIS)

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

NWIS-Mapper thumbnail image
August 30, 2017

National Water Information System (NWIS) Mapper

The National Water Information System (NWIS) Mapper provides access to water-resources data at over 1.5 million sites across the U.S., including current and historical data. Users can search by site type, data type, site number, or place.

Coastal Change Hazards Portal Interactive Mapper screen grab
August 24, 2017

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.

Science Base Logo
April 18, 2017

Data tables in support of manuscript "​δ13C and δ15N in the Endangered Kemp's Ridley Sea Turtle Lepidochelys kempii After the Deepwater Horizon Oil Spill"

Carbon and nitrogen isosope ratios of satellite-tagged turtles to 1) assess changes in foraging strategies of nesting Lk sampled in 2010 (the year of the Deepwater Horizon oil spill) and two subsequent post-spill years; and 2) estimate the proportion of females that were within the area affected by the oil spill, the latter via discriminant analysis.

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.

The USGS Flood Event Viewer (FEV) is the public data discovery component of the Short-Term Network (STN) database. Data viewable
October 7, 2016

Hurricane and Flood Response Map Viewer

The USGS Flood Event Viewer (FEV) is the public data discovery component of the Short-Term Network (STN) database. Data viewable and downloadable from this page are from the STN database. This application integrates with the USGS National Water Information System (NWIS) database  for display of time-series water data.

Structure datasets for the nation from The National Map
April 20, 2016

Structures Data

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations.

Boundaries datasets for the nation from The National Map.
April 19, 2016

Boundaries Data

Boundaries data or governmental units represent major civil areas including states, counties, Federal, and Native American lands, and incorporated places such as cities and towns.

Illustration related to the the river corridor
April 19, 2016

Hydrography Data

The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) are used to portray surface water on The National Map.

3D Lidar Point Cloud Image of San Francisco Bay and Golden Gate Bridge
April 19, 2016

The United States Interagency Elevation Inventory (USIEI)

The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and Fall.

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

Elevation Data

The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), 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.

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Screenshot of Irma water footprint on a map
September 14, 2017

Hurricane Irma, the most intense hurricane observed in the Atlantic in the last decade, approached the west coast of Florida on September 10th, 2017. This animation shows the precipitation and river conditions through time as Irma moved over the southeastern United States.

North Platte, Nebraska US Topo quadrangle: 2014
September 26, 2016

Network wells depicted on the Climate Response Network location map
Note: Color shading in the table below indicates multiple wells that plot as a single point on the state location map above.
Note: BLS = Water Level in Feet Below Land Surface, RVD = Water Level referenced to a vertical datum

Hurricane Louisiana Coast
September 14, 2016

June 1 marks the beginning of hurricane season. Should storms arrive on the Louisiana coast, the people in coastal communities across the State, along with many Federal, State, and local agencies will need to know how the storms are affecting the coastal and low-lying areas.The USGS maintains an extensive network of coastal gages that provides critical time-sensitive water level.

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.

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.

Filter Total Items: 23
Year Published: 2017

Human interactions with sirenians (manatees and dugongs)

There are three extant sirenian species of the Trichechidae family and one living Dugongidae family member. Given their close ties to coastal and often urbanized habitats, sirenians are exposed to many types of anthropogenic activities that result in challenges to their well-being, poor health, and even death. In the wild, they are exposed to...

Bonde, Robert K.; Flint, Mark
Bonde, R.K., and Flint, M., 2017, Human interactions with sirenians (manatees and dugongs) in Butterworth, A., ed., Marine Mammal Welfare: Human Induced Change in the Marine Environment and its Impacts on Marine Mammal Welfare, Animal Welfare 17, p. 299-314, https://doi.org/10.1007/978-3-319-46994-2_17.

Year Published: 2017

Status and threats analysis for the Florida manatee (Trichechus manatus latirostris), 2016

Trichechus manatus (West Indian manatee), especially T. m. latirostris, the Florida subspecies, has been the focus of conservation efforts and extensive research since its listing under the Endangered Species Act of 1973. To determine the status of, and severity of threats to, the Florida manatee, a comprehensive revision and update of the manatee...

Runge, Michael C.; Sanders-Reed, Carol A.; Langtimm, Catherine A.; Hostetler, Jeffrey A.; Martin, Julien; Deutsch, Charles J.; Ward-Geiger, Leslie I.; Mahon, Gary L.
Runge, M.C., Sanders-Reed, C.A., Langtimm, C.A., Hostetler, J.A., Martin, Julien, Deutsch, C.J., Ward-Geiger, L.I., and Mahon, G.L., 2017, Status and threats analysis for the Florida manatee (Trichechus manatus latirostris), 2016: U.S. Geological Survey Scientific Investigation Report 2017–5030, 40 p., https://doi.org/10.3133/sir20175030.

Year Published: 2017

Manatee grazing impacts on a mixed species seagrass bed

The endangered manatee Trichechus manatus is one of few large grazers in seagrass systems. To assess the long-term impacts of repeated grazing on seagrasses, we selected a study site within Kennedy Space Center in the northern Banana River, Brevard County, Florida, that was typically grazed by large numbers of manatees in spring. Two 13x13 m...

Lefebvre, Lynn W.; Provancha, Jane A.; Slone, Daniel H.; Kenworthy, W. Judson
Lefebvre, L.W., Provancha, J.A., Slone, D.H., and Kenworthy, W.J., 2017, Manatee grazing impacts on a mixed species seagrass bed: Marine Ecology Progress Series, v. 564, p. 29-45, https://doi.org/10.3354/meps11986.

Year Published: 2017

Baseline aquatic contamination and endocrine status in a resident fish of Biscayne National Park

Surface water, sediment, and fish from Biscayne Bay, coastal wetlands adjacent to the Bay, and canals discharging into the Bay were sampled for determination of baseline contamination in Biscayne National Park. While the number of contaminants detected in canal waters was greater during the wet season than the dry season, no seasonal difference...

Bargar, Timothy A.; Whelan, Kevin R.T.; Alvarez, David; Echols, Kathy R.; Peterman, Paul H.
Bargar, T.A., Whelan, K.R.T., Alvarez, D., Echols, K., and Peterman, P.H., 2017, Baseline aquatic contamination and endocrine status in a resident fish of Biscayne National Park: Marine Pollution Bulletin, v. 115, no. 1-2, p. 525-533, http://dx.doi.org/10.1016/j.marpolbul.2016.11.044.

Year Published: 2017

Expert opinions of demographic rates of Argentine black and white tegus in South Florida

We illustrate the utility of expert elicitation, explicit recognition of uncertainty, and the value of information for directing management and research efforts for invasive species, using tegu lizards (Salvator merianae) in southern Florida as a case study.  We posited a post-birth pulse, matrix model, which was parameterized using a 3-point...

Johnson, Fred A.
Johnson, F.A., 2017, Expert opinions of demographic rates of Argentine black and white tegus in South Florida: U.S. Geological Survey data release, https://doi.org/10.5066/F7ZC810J.

Year Published: 2017

Hydrologic modeling in a marsh-mangrove ecotone: Predicting wetland surface water and salinity response to restoration in the Ten Thousand Islands region of Florida, USA

At the fringe of Everglades National Park in southwest Florida, United States, the Ten Thousand Islands National Wildlife Refuge (TTINWR) habitat has been heavily affected by the disruption of natural freshwater flow across the Tamiami Trail (U.S. Highway 41). As the Comprehensive Everglades Restoration Plan (CERP) proposes to restore the natural...

Michot, B.D.; Meselhe, E.A.; Krauss, Ken W.; Shrestha, Surendra; From, Andrew S.; Patino, Eduardo
Michot, B., Meselhe, E., Krauss, K., Shrestha, S., From, A., and Patino, E., 2015, Hydrologic modeling in a marsh-mangrove ecotone: predicting wetland surface water and salinity response to restoration in the Ten Thousand Islands region of Florida, USA: Journal of Hydrologic Engineering, D4015002, http://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0001260.

Year Published: 2016

Baseline reference range for trace metal concentrations in whole blood of wild and managed West Indian Manatees (Trichechus manatus) in Florida and Belize

The West Indian manatee (Trichechus manatus) is exposed to a number of anthropogenic influences, including metals, as they inhabit shallow waters with close proximity to shore. While maintaining homeostasis of many metals is crucial for health, there is currently no baseline reference range that can be used to make clinical and environmental...

Takeuchi, Noel Y.; Walsh, Michael T; Bonde, Robert K.; Powell, James A.; Bass, Dean A.; Gaspard, Joseph C.; Barber, David S.
Takeuchi, N.Y., Walsh, M.T., Bonde, R.K., Powell, J.A., Bass, D.A., Gaspard III, J.C., and Barber, D.S., 2016, Baseline reference range for trace metal concentrations in whole blood of wild and managed West Indian manatees (Trichechus manatus) in Florida and Belize: Aquatic Mammals, v. 42, no. 4, p. 440-453, http://dx.doi.org/10.1578/AM.42.4.2016.440. 453. doi:10.1578/AM.42.4.2016.440

Year Published: 2016

Baseline aquatic contamination and endocrine status in a resident fish of Biscayne National Park

This is a collection of data on the contamination of water, fish, and sediments in Biscayne National Park and in canals that discharge into the national park. The water data are estimations of their concentrations in water based on sampling with passive water samplers (semi-permeable membrane devices and polar organic chemical integrative samplers...

Bargar, Timothy A.; Whelan, Kevin; Alvarez, David A.; Echols, Kathy R.; Peterman, Paul H.
Bargar, T.A., Whelan, K.R.T., Alvarez, D., Echols, K., and Petermand, P.H., 2016, Baseline aquatic contamination and endocrine status in a resident fish of Biscayne National Park: U.S. Geological Survey data release, http://doi.org/10.5066/F7N014PH.

Year Published: 2016

Response of imperiled Okaloosa darters to stream restoration

The Okaloosa Darter Etheostoma okaloosae is a small percid endemic to six stream drainages in northwestern Florida. The U.S. Fish and Wildlife Service listed Okaloosa Darters as endangered in 1973 and downlisted them to threatened in 2011 because of habitat improvements and increasing abundance across much of their geographic range. Delisting is...

Reeves, David B.; Tate, William B.; Jelks, Howard; Jordan, Frank
Reeves, D.B., Tate, W.B., Jelks, H.L., and Jordan, F., 2016, Response of imperiled Okaloosa darters to stream restoration: North American Journal of Fisheries Management, v. 36, no. 6, p. 1375-1385, http://dx.doi.org/10.1080/02755947.2016.1227402.

Year Published: 2016

Large reptiles and cold temperatures: Do extreme cold spells set distributional limits for tropical reptiles in Florida?

Distributional limits of many tropical species in Florida are ultimately determined by tolerance to low temperature. An unprecedented cold spell during 2–11 January 2010, in South Florida provided an opportunity to compare the responses of tropical American crocodiles with warm-temperate American alligators and to compare the responses of...

Mazzotti, Frank J.; Cherkiss, Michael S.; Parry, Mark; Beauchamp, Jeff; Rochford, Mike; Smith, Brian J.; Hart, Kristen M.; Brandt, Laura A.
Mazzotti, F.J., Cherkiss, M.S., Parry, M., Beauchamp, J., Rochford, M., Smith, B., Hart, K., and Brandt, L.A., 2016, Large reptiles and cold temperatures: Do extreme cold spells set distributional limits for tropical reptiles in Florida?: Ecosphere, v. 7, no. 8, art. e01439, http://dx.doi.org/10.1002/ecs2.1439.

Year Published: 2016

Early life history and spatiotemporal changes in distribution of the rediscovered Suwannee moccasinshell Medionidus walkeri (Bivalvia: Unionidae)

Accurate distribution data are critical to the development of conservation and management strategies for imperiled species, particularly for narrow endemics with life history traits that make them vulnerable to extinction. Medionidus walkeri is a rare freshwater mussel endemic to the Suwannee River Basin in southeastern North America....

Johnson, Nathan A.; Mcleod, John; Holcomb, Jordan; Rowe, Matthew T.; Williams, James D.
Johnson, N.A., McLeod, J.M., Holcomb, J., Rowe, M., and Williams, J.D., 2016, Early life history and spatiotemporal changes in distribution of the rediscovered Suwannee moccasinshell, Medionidus walkeri (Bivalvia: Unionidae): Inter-Research Endangered Species Research, ESR Prepress Abstract, http://dx.doi.org/10.3354/esr00752.

Year Published: 2016

The structure and composition of Holocene coral reefs in the Middle Florida Keys

The Florida Keys reef tract (FKRT) is the largest coral-reef ecosystem in the continental United States. The modern FKRT extends for 362 kilometers along the coast of South Florida from Dry Tortugas National Park in the southwest, through the Florida Keys National Marine Sanctuary (FKNMS), to Fowey Rocks reef in Biscayne National Park in the...

Toth, Lauren T.; Stathakopoulos, Anastasios; Kuffner, Ilsa B.
Toth, L.T., Stathakopoulos, Anastasios, and Kuffner, I.B., 2016, The structure and composition of Holocene coral reefs in the Middle Florida Keys: U.S. Geological Survey Open-File Report 2016–1074, 27 p., http://dx.doi.org/10.3133/ofr20161074.

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Three panels. Left: overhead view of ocean and breakers. Middle and right: Seafloor maps: dark blue deep, light blue shallow.
2017 (approx.)
Estimated and measured ocean depths (bathymetry) from Madeira Beach, Florida. Each panel shows same geographic area. m = meters. Left: Snapshot transformed from original oblique camera view to overhead “map” view. Middle: Bathymetry estimated by applying cBathy algorithm to July 2017 video imagery. Right: Bathymetry measured with sonar in February 2017. Despite being based on data collected 5...
2017 (approx.)
Before a hurricane, USGS Scientists undertake a data collection effort of a grand scale. They install a temporary mobile network of sensors along the coasts to collect additional data on the intensity of storm surge, one of the most dangerous elements of a hurricane. This effort provides critical information that allows various USGS partners and emergency responders to make better informed...
September 19, 2017
Hurricane Irma churned up sediment around the Florida keys as shown by these Landsat images. At the USGS EROS Center, we study land change, operate the Landsat satellites, and maintain the longest, continuously acquired collection of images of the Earth's land surface. USGS EROS Center ( https://eros.usgs.gov/ )
Boat thrown onto land from Hurricane Irma's surge at a ramp in St. Augustine, Florida
September 15, 2017
Boat thrown onto land from Hurricane Irma's surge at a ramp in St. Augustine, Florida
Satellite image showing the damage from Irma on the Florida Keys.
September 14, 2017
Hurricane Irma crossed the Florida Keys the morning of September 10, 2017, as a Category 4 hurricane with winds of 130 miles per hour. Besides damage done to structures on the islands, the storm also stirred the waters. A natural color Landsat image acquired four days after the storm contrasts with an image acquired in March. The murky green-blue color is near-surface sediment churned up by...
Hurricane Irma satellite image
September 5, 2017
Satellite Image of Hurricane Irma on September 5, 2017. Photo by NASA/NOAA GOES Project
Distant view of sandy beach stretching from bottom left to upper right of photo.
June 20, 2017
Time-averaged image, or “timex,” created by averaging the intensity of light recorded at each spot, or “pixel,” during a 17-minute video taken at Madeira Beach, Florida, on June 20, 2017. Blurred white bands show where waves are breaking. Offshore band shows location of a sand bar. Line between wet and dry sand shows the maximum height on the beach reached by the waves (“runup”). Researchers at...
Distant view of sandy beach stretching from bottom left to upper right of photo
June 20, 2017
Snapshot, or first frame of from a 17-minute video shot on June 20, 2017, in Madeira Beach, Florida. Researchers at the USGS are using these and other video images to improve understanding and computer modeling of beach processes, especially those that change the coast. See also, a time-averaged image derived from the same video .
Image in mostly black and gray tones showing distant view of beach stretching from bottom left to upper right of photo.
June 20, 2017
“Variance” image produced from video shot at Madeira Beach, Florida, on June 20, 2017. The more the light intensity changes at a given spot, or “pixel,” during the video, the brighter the value assigned to that pixel. Motion tends to produce changes in light intensity. Note bright bands parallel to shore where waves were breaking. Researchers are using these and other video images to improve...
Piles of seaweed fragments on sand beach. Low sand cliff on left with broken walkway. Multistory buildings, clouds in distance.
June 7, 2017
Photograph taken June 7, 2016, one day after Tropical Storm Colin, on Sunset Beach in the town of St. Pete Beach, Florida. Storm waves eroded the beach and dune, producing a cliff-like feature called a beach scarp.
Sandy beach with white foamy water on right, low grassy dunes on left. Multistory building in distance. Dark-gray cloudy sky.
June 6, 2017
Photograph taken during Tropical Storm Colin, June 6, 2016, on Sunset Beach in the town of St. Pete Beach, Florida.
April 19, 2017
See the actual drone footage at: https://www.usgs.gov/media/videos/prescribed-burn-tall-timbers-research-... Footage of drone during a prescribed fire at Tall Timbers Research Station, Tallahassee, Florida (April 19, 2017).
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Distant view of sandy yellow beach stretching from bottom left to upper right of photo.
November 8, 2017

Coastal communities count on beaches for recreation and for protection from large waves, but beaches are vulnerable to threats such as erosion by storms and flooding. Whether beaches grow, shrink, or even disappear depends in part on what happens just offshore. How do features like shifting sandbars affect waves, currents, and the movement of sand from the beach to offshore and back?

This green disc identifies a USGS High-Water Mark, which was found south of Jacksonville, Florida, September 27, on a canal.
September 28, 2017

Reporters: Do you want to accompany a USGS field crew as they work in the field to document how high the flood waters and storm surge from Hurricane Irma reached around the Jacksonville, Tampa and Fort Myers Areas?

If so, please contact Jeanne Robbins, jrobbins@usgs.gov, 919-571-4017.  

Boat thrown onto land from Hurricane Irma's surge at a ramp in St. Augustine, Florida
September 19, 2017

Editor’s note: this news release will be updated online with more information on the streamgage records being set in Florida as it becomes available

Preparing to measure Irma's storm surge in Puerto Rico
September 6, 2017

 To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Irma, visit the USGS Hurricane Irma page.

Sensor deployment
September 6, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Irma, visit the USGS Hurricane Irma page.

Image shows a geologic map of the Lower 48
August 21, 2017

A carbonatite here, a glacial moraine there, a zig-zagging fault or two, even a behemoth of a batholith. The geology of the 50 States is an enormous patchwork of varied forms, beautiful in their variance but challenging to present as a single map.

A submarine-ground-water-discharge site at Florida State University's Marine Lab at just after sunset
June 20, 2017

Larger-than-average low and no oxygen area may affect the region’s shrimp fisheries

Microscope image of Dolichospermum circinale, a cyanobacteria found in last year's Florida harmful algal bloom.
May 31, 2017

A new U.S. Geological Survey study that looked at the extensive harmful algal bloom that plagued Florida last year found far more types of cyanobacteria present than previously known.

Prescribed Burn at Tall Timbers Research Station
May 24, 2017

U.S. Geological Survey scientists and partners are taking technology to the next level, using unmanned aircraft systems (UAS), commonly called drones, to acquire both fire intensity and emissions data during prescribed burns.

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.