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: 371
Date published: June 26, 2017

DroughtWatch: Surface Water Conditions in Tennessee

The U.S. Geological Survey (USGS) has a network of surface-water real-time monitoring stations in Tennessee. The network provides real-time water-stage data along with computed streamflow at many of these locations, and rainfall recorded at some stations. These sites continuously record data on 15-minute intervals and transmit the data via satellite to be incorporated into the USGS National...

Date published: June 26, 2017

Tennessee DroughtWatch

This map (from USGS's National Drought Watch Web site) shows the 7-day average streamflow conditions in hydrologic units. Thus, the map shows conditions adjusted for this time of the year. The colors represent 7-day average streamflow percentiles for the day of the year. USGS sites having at least 30 years of record are used. The data used to produce this map are provisional and have not been...

Date published: June 26, 2017

TVA Monitoring Stations in Tennessee

Basic hydrologic data collection at selected streams in Tennessee

Contacts: W Scott Gain
Date published: June 23, 2017

Mississippi/Atchafalaya River Basins - SPARROW

SPARROW, a modeling tool for the regional interpretation of water-quality monitoring data. The model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and aquatic transport. SPARROW empirically estimates the origin and fate of contaminants in river networks and quantifies...

Date published: June 7, 2017
Status: Active

Georgia Geologic Survey - Joint USGS and GGS Publications

The South Atlantic Water Science Center - Georgia Office cooperates with the Georgia Geologic Survey (GGS) in many hydrologic projects. A number of joint publications have been published over the years.

Contacts: Brian McCallum
Date published: June 4, 2017
Status: Active

South Atlantic Water Science Center Drought Monitoring

When rainfall is less than normal for several weeks, months, or years, the flow of streams and rivers declines, water levels in lakes and reservoirs fall, and the depth to water in wells increases. If dry weather persists and water-supply problems develop, the dry period can become a drought.

 

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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.

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Year Published: 2020

Predicting multi-species foraging hotspots for marine turtles in the Gulf of Mexico

Quantifying the distribution of animals and identifying underlying characteristics that define suitable habitat are essential for effective conservation of free-ranging species. Prioritizing areas for conservation is important in managing a geographic extent that has a high level of disturbance and limited conservation resources. We examined the...

Fujisaki, Ikuko; Hart, Kristen; Bucklin, David N.; Iverson, Autumn R.; Rubio, Cynthia; Lamont, Margaret; Miron, Raul de Jesus G.D.; Burchfield, Patrick M.; Pena, Jaime; Shaver, Donna J.

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Year Published: 2020

Sensitivity of storm response to antecedent topography in the XBeach model

Antecedent topography is an important aspect of coastal morphology when studying and forecasting coastal change hazards. The uncertainty in morphologic response of storm-impact models and their use in short-term hazard forecasting and decadal forecasting is important to account for when considering a coupled model framework. This study provided a...

Mickey, Rangley C.; Dalyander, P. Soupy; McCall, Robert T.; Passeri, Davina

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Year Published: 2020

An interactive data visualization framework for exploring geospatial environmental datasets and model predictions

With the rise of large-scale environmental models comes new challenges for how we best utilize this information in research, management and decision making. Interactive data visualizations can make large and complex datasets easier to access and explore, which can lead to knowledge discovery, hypothesis formation and improved understanding. Here,...

Walker, Jeffrey D; Letcher, Benjamin; Rodgers, Kirk D.; Muhlfeld, Clint C.; D'Angelo, Vincent S.

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Year Published: 2020

Estimated groundwater withdrawals from principal aquifers in the United States, 2015

In 2015, about 84,600 million gallons per day (Mgal/d) of groundwater were withdrawn in the United States for various uses including public supply, self-supplied domestic, industrial, mining, thermoelectric power, aquaculture, livestock, and irrigation. Of this total, about 94 percent (79,200 Mgal/d) was withdrawn from principal aquifers, which...

Lovelace, John K.; Nielsen, Martha G.; Read, Amy L.; Murphy, Chid J.; Maupin, Molly A.
Lovelace, J.K., Nielsen, M.G., Read, A.L., Murphy, C.J., and Maupin, M.A., 2020, Estimated groundwater withdrawals from principal aquifers in the United States, 2015 (ver. 1.2, October 2020): U.S. Geological Survey Circular 1464, 70 p., http://doi.org/10.3133/cir1464.

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Year Published: 2020

Growth rates for immature Kemp’s ridley sea turtles from a foraging area in the northern Gulf of Mexico

Examining vital rates helps clarify how environmental characteristics, biological resources and human activities affect population growth. Carapace lengths were gathered for 241 Kemp’s ridley Lepidochelys kempii sea turtles that were marked and recaptured (n = 23) between 2011 and 2019 at a foraging location in northwest Florida, USA....

Lamont, Margaret; Johnson, Darren

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Year Published: 2020

Pesticide mixtures show potential toxicity to aquatic life in U.S. streams, water years 2013-2017

During water years (WY) 2013–2017, the U.S. Geological Survey, National Water-Quality Assessment (NAWQA) Project, sampled the National Water Quality Network – Rivers and Streams (NWQN) year-round and reported on 221 pesticides at 72 sites across the United States in agricultural, developed, and mixed land use watersheds. The Pesticide Toxicity...

Covert, S. Alex.; Shoda, Megan E.; Stackpoole, Sarah M.; Stone, Wesley W.

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Year Published: 2020

Simulating wave runup on an intermediate–reflective beach using a wave-resolving and a wave-averaged version of XBeach

The prediction of wave runup, as well as its components, time-averaged setup and the time-varying swash, is a key element of coastal storm hazard assessments, as wave runup controls the transitions between morphodynamic response types such as dune erosion and overwash, and the potential for flooding by wave overtopping. While theoretically able to...

de beer, A.F.; McCall, R.T.; Long, Joseph W.; Tissier, M.F.S.; Reniers, A.J.H.M.

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Year Published: 2020

The Everglades Depth Estimation Network (EDEN) surface-water interpolation model, version 3

The Everglades Depth Estimation Network (EDEN) is an integrated network of water-level gages, interpolation models that estimate daily water-level data at ungaged locations, and applications that generate derived hydrologic data across the freshwater part of the Greater Everglades landscape. Version 3 (V3) of the EDEN interpolation surface-...

Haider, Saira; Swain, Eric; Beerens, James; Petkewich, Matthew; McCloskey, Bryan; Henkel, Heather
Haider, S., Swain, E., Beerens, J., Petkewich, M., McCloskey, B., and Henkel, H., 2020, The Everglades Depth Estimation Network (EDEN) surface-water interpolation model, version 3: U.S. Geological Survey Scientific Investigations Report 2020–5083, 31 p., https://doi.org/10.3133/sir20205083.

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Year Published: 2020

Potentiometric surfaces, 2011–12, and water-level differences between 1995 and 2011–12, in wells of the “200-foot,” “500-foot,” and “700-foot” sands of the Lake Charles area, southwestern Louisiana

Water levels were determined in 90 wells to prepare 2011–12 potentiometric surfaces focusing primarily on the “200-foot,” 500-foot,” and “700-foot” sands of the Lake Charles area, which are part of the Chicot aquifer system underlying Calcasieu and Cameron Parishes of southwestern Louisiana. These three aquifers provided 34 percent of the total...

White, Vincent E.; Griffith, Jason M.
White, V.E., and Griffith, J.M., 2020, Potentiometric surfaces, 2011–12, and water-level differences between 1995 and 2011–12, in wells of the “200-foot,” “500-foot,” and “700-foot” sands of the Lake Charles area, southwestern Louisiana: U.S. Geological Survey Scientific Investigations Map 3460, 4 sheets, 11-p. pamphlet, http://dx.doi.org/10.3133/sim3460.

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Year Published: 2020

Modeling soil porewater salinity in mangrove forests (Everglades, Florida, USA) impacted by hydrological restoration and a warming climate

Hydrology is a critical driver controlling mangrove wetlands structural and functional attributes at different spatial and temporal scales. Yet, human activities have negatively affected hydrology, causing mangrove diebacks and coverage loss worldwide. In fact, the assessment of mangrove water budgets, impacted by natural and human disturbances,...

Zhao, Xiaochen; Rivera-Monroy, Victor H.; Wang, Hongqing; Xue, Zuo; Tsai, Cheng-Feng; Willson, C. S.; Castañeda-Moya, E.; Twilley, Robert R.

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Year Published: 2020

Observed and modeled mercury and dissolved organic carbon concentrations and loads at control structure S-12D, Florida Everglades, 2013–17

Mercury (Hg) has been a contaminant of concern for several decades in South Florida, particularly in the Florida Everglades. The transport and bioavailability of Hg in aquatic systems is intimately linked to dissolved organic carbon (DOC). In aquatic systems, Hg can be converted to methylmercury (MeHg), which is the form of Hg that bioaccumulates...

Booth, Amanda; Poulin, Brett A.; Krabbenhoft, David P.
Booth, A.C., Poulin, B.A., and Krabbenhoft, D.P., 2020, Observed and modeled mercury and dissolved organic carbon concentrations and loads at control structure S-12D, Florida Everglades, 2013–17: U.S. Geological Survey Open-File Report 2020–1092, 27 p., https://doi.org/10.3133/ofr20201092.

Filter Total Items: 498
In UV light an alga from the desmid family looks like a snowflake chain
February 28, 2017

A snowflake chain? Nope. A one-celled green alga.

The desmid family of single-celled green algae are never found in abundance, says USGS biologist Barry Rosen. They inhabit the soft, slightly acidic water of wetlands that depend on rainwater, like Florida’s Arthur R. Marshall Loxahatchee National Wildlife Refuge. They don’t “bloom” en masse, but their presence is an indicator of good water quality. Rosen’s research is

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Frosted flatwoods salamander
December 31, 2016

Frosted flatwoods salamander

Frosted flatwoods salamander, St. Marks National Wildlife Refuge, Florida

Schematic showing how sediment on the seafloor moves in response to multiple forces
December 31, 2016

Schematic showing how sediment on the seafloor moves

Schematic showing how sediment on the seafloor moves in response to a force created by the combined action of tides, ocean waves, and wind-driven currents. Sediment movement influences habitat for plants and animals, affects construction of facilities for development for offshore energy, causes suspension of contaminants such as oil that adhere to sediment particles, and

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two men standing near a well. Truck-mounted rig and well head visible.
December 31, 2016

Scientist working to retrieve sampling gear from groundwater well.

JJ Thordsen (USGS) and a wireline operator retrieving downhole vacuum sampler from a characterization well near a CO2 injection well at Citronelle oil field, Alabama.

Image shows a sample of rutile against a black background
December 31, 2016

Rutile

This is a sample of rutile, one of the primary mineral sources of titanium. While as a metal, titanium is well known for corrosion resistance and for its high strength-to-weight ratio, approximately 95% of titanium is consumed in the form of titanium dioxide (TiO2), a white pigment used in paints, paper, and plastics. Read more about titanium

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Frosted flatwoods salamander
December 31, 2016

Frosted flatwoods salamander

Frosted flatwoods salamander in St. Marks National Wildlife Refuge, Florida

Using an acoustic monitor (ADCP) to measure a flood on the French Broad River, Blantyre, NC
December 14, 2016

Acoustic Doppler Current Profiler (ADCP) to measure streamflow

The use of acoustic Doppler current profilers (ADCPs) from a moving boat is now a commonly used method for measuring streamflow. The technology and methods for making ADCP-based discharge measurements are different from the technology and methods used to make traditional discharge measurements with mechanical meters.

The ADCP measures water currents with sound,

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Filter Total Items: 399
USGS
November 20, 2013

A newly installed United States Geological Survey streamgage on the Chattahoochee River is providing rafters, flood forecasters and dam operators critical information about the river and its ever changing flow. 

USGS
August 27, 2013

Beaches and dunes on Fire Island, New York, lost more than half of their pre-storm volume during Hurricane Sandy, leaving the area more vulnerable to future storms. 

USGS
July 30, 2013

Newly designed maps covering Indiana, Iowa, North Carolina, Pennsylvania, and Virginia are now available online for free download

USGS
July 15, 2013

Journalists are invited to view the airplane being used by the U.S. Geological Survey to study the magnetic field of the earth, which may help map locate shallow concealed faults associated with the New Madrid Seismic Zone.

USGS
July 9, 2013

Starting around July 10, and continuing for approximately one month, an airplane operating under contract to the U.S. Geological Survey will be making low-level flights over a 1400-square-mile area including Blytheville, Ark., Kennett, Mo., Piggott, Ark., and Qulin, Mo., along with other parts of southeastern Missouri, northeastern Arkansas, and western Tennessee. 

USGS
June 12, 2013

Georgia's groundwater levels showed a general decline between 2010 and 2011 in response to low rainfall and increased pumping, according to a recent USGS publication.

USGS
April 29, 2013

Nesting green sea turtles are benefiting from marine protected areas by using habitats found within their boundaries, according to a U.S. Geological Survey study that is the first to track the federally protected turtles in Dry Tortugas National Park.

USGS
September 19, 2012

With the release of US Topo maps for Florida and Illinois, the continental US is now covered with the new digital quadrangles
 

USGS
September 18, 2012

Davie, FL. -- A new online tool will make data on several of Florida’s threatened and endangered species—including the Florida panther, American crocodile, and Key deer—more readily accessible to resource managers and planners. 

USGS
August 28, 2012

Sandy beaches and barrier islands along the northern Gulf of Mexico are highly vulnerable to beach and dune erosion as Hurricane Isaac makes landfall this week, according to a new U.S. Geological Survey assessment. The projections also show which coastal areas may see storm-surge topping sand dunes and beaches.  

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