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: January 30, 2017
Status: Active

Streamflow Alteration Assessments to Support Bay and Estuary Restoration in Gulf States

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-...

Date published: January 26, 2017
Status: Active

Triangle Area, NC, Water Supply Monitoring

The Research Triangle area, located within the upper Cape Fear and Neuse River basins, is one of the most rapidly developing areas in the Nation. Growth has increased demand for water from public suppliers, the majority of which draw water from streams and lakes in the region. Growth also brings the threat of greater loads of contaminants and new contaminant sources that, if not properly...

Contacts: Mary L Giorgino
Date published: January 25, 2017

Turbidity Monitoring in Tennessee

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. 

Contacts: W Scott Gain
Date published: January 25, 2017

Tennessee River (TENN) Basin Study

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.html

Contacts: W Scott Gain
Date published: January 24, 2017
Status: Active

Assessment of Groundwater Availability in Aiken County, South Carolina

The objective of this project is to develop a groundwater-flow model that can be used by Aiken County water managers to manage current and projected reported and unreported demands on groundwater resource and to ensure the highest quality of groundwater.

Project Chief: Bruce Campbell
Cooperator: Aiken County, Gilbert-Summit Rural Water District, City of Aiken, Breezy Hill Water and...

Contacts: Bruce Campbell
Date published: January 20, 2017
Status: Active

Stratification and Water Quality of Jordan Lake, North Carolina

The New Hope arm of Jordan Lake, located in Chatham County, North Carolina, serves as a drinking-water supply for the Towns of Cary, Apex, and Morrisville. The reservoir is listed as impaired due to nutrient over-enrichment and occasionally experiences algal blooms and fish kills.

In order to evaluate effects of installing a vertical-mixing system on the New Hope arm of Jordan Lake, the...

Contacts: Mary L Giorgino
Date published: January 20, 2017
Status: Active

North Carolina Shale Gas Baseline Groundwater Sampling Project

The U.S. Geological Survey (USGS) South Atlantic Water Science Center is conducted an inventory of well records and baseline groundwater-quality sampling to better delineate areas of groundwater use and groundwater-quality characteristics prior to potential shale gas exploration in the Triassic Basins of Lee and Chatham Counties, North Carolina. The compilation of baseline groundwater-quality...

Date published: January 19, 2017
Status: Completed

Roanoke River Water-Quality Monitoring and Modeling, N.C.

The relations among river flow, floodplain water level, and instream dissolved-oxygen (DO) concentrations are important but poorly understood for the Roanoke River. Flooding and floodplain inundation no longer follow a natural seasonal pattern of flooding in the winter and occasionally in the fall, and lower flows throughout the remainder of the year, but are primarily governed by upstream...

Contacts: Sean D Egen
Date published: January 17, 2017
Status: Active

Water Use in North Carolina, 2010

In North Carolina and across the Nation, water is a vital resource and it is used for a variety of purposes. Water use for 2010 was estimated for each county in North Carolina using data obtained from various Federal and State agencies and other sources. Estimates of water use in North Carolina were developed for the categories of public supply, domestic, industrial, mining, aquaculture,...

Contacts: Douglas G Smith
Date published: January 11, 2017

Surface-Water Quality in Agricultural Watersheds of the North Carolina Coastal Plain Associated with Concentrated Animal Feeding Operations

The effects of concentrated animal feeding operations (CAFOs) on water quality were investigated at 54 agricultural stream sites throughout the North Carolina Coastal Plain during 2012 and 2013.

Three general watershed land-use types were examined during the study, including 18 background watersheds with no active CAFOs, 18 watersheds with one or more active swine CAFOs but no poultry...

Date published: January 9, 2017
Status: Active

Water Use in South Carolina, 2010

The future health and welfare of the Nation's population is dependent upon a continuing supply of uncontaminated fresh water. Increasing withdrawals and increasing demands for instream flows are limiting the water available for future use. The USGS compiles water-use data from numerous sources for all parts of the country, and since 1950 has published a series of Circulars on the estimated use...

Date published: December 29, 2016
Status: Active

Low-Flow Frequency and Flow Duration Statistics at Continuous-Record Gages in South Carolina

South Carolina State agencies use low-flow statistics for many applications, including determining waste-load allocations for point sources, development of total maximum daily loads (TMDLs) for streams, determining the quantity of water that can be safely withdrawn from a particular stream, and preparing the State Water Plan. This project will monitor the low-flow frequency and duration...

Contacts: Toby D Feaster
Filter Total Items: 5,256
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Year Published: 2020

Combining physical and species‐based approaches improves refugia identification

Climate‐change refugia – locations likely to facilitate species persistence under climate change – are increasingly important components of conservation planning. Recent approaches for identifying refugia at broad scales include identifying regions that are projected to experience less severe changes (climatic exposure), that contain a diversity...

Michalak, Julia; Stralberg, Diana; Cartwright, Jennifer M.; Lawler, Joshua J.

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Year Published: 2020

Disturbance refugia within mosaics of forest fire, drought, and insect outbreaks

Disturbance refugia – locations that experience less severe or frequent disturbances than the surrounding landscape – provide a framework to highlight not only where and why these biological legacies persist as adjacent areas change but also the value of those legacies in sustaining biodiversity. Recent studies of disturbance refugia in forest...

Krawchuk, Meg A.; Meigs, Garrett; Cartwright, Jennifer M.; Coop, Jonathan D.; Davis, Raymond J.; Holz, Andres; Kolden, Crystal A.; Meddens, Arjan J.H.

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Year Published: 2020

Scaling responses of leaf nutrient stoichiometry to the lakeshore flooding duration gradient across different organizational levels

Most wetlands have been subject to changes in flooding regimes by climate change and human activities, resulting in widespread alteration of wetland plants at different organizational levels. However, scaling the responses of wetland plants to changes in flooding regimes is still challenging, because flooding could indirectly affect wetland plants...

Chen, Yasong; Stagg, Camille; Cai, Yongjiu; Lü, Xiaotao; Wang, Xiaolong; Shen, Ruichang; Lan, Zhichun

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Year Published: 2020

A tropical cyclone-induced ecological regime shift: Mangrove forest conversion to mudflat in Everglades National Park (Florida, USA)

The ecological effects of tropical cyclones on mangrove forests are diverse and highly location- and cyclone-dependent. Ecological resistance, resilience, and enhancement are terms that describe most mangrove forest responses to tropical cyclones. However, in the most extreme cases, tropical cyclones can trigger abrupt and irreversible ecological...

Osland, Michael; Feher, Laura; Anderson, Gordon; Vervaeke, William; Krauss, Ken; Whelan, Kevin R.T.; Balentine, Karen S.; Tiling-Range, G.; Smith, Thomas J.; Cahoon, Donald

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Year Published: 2020

Estimating the effect of winter cover crops on nitrogen leaching using cost-share enrollment data, satellite remote sensing, and Soil and Water Assessment Tool (SWAT) modeling

This study employed a novel combination of data (winter cover crop cost-share enrollment records, satellite remote sensing of wintertime vegetation, and results of Soil and Water Assessment Tool (SWAT) water quality simulations) to estimate the environmental performance of winter cover crops (WCC) at the watershed scale, from 2008 through 2017,...

Hively, W. Dean; Lee, Sangchul; Sadeghi, Ali M.; McCarty, Gregory W.; Lamb, Brian T.; Soroka, Alexander M.; Keppler, Jason; Yeo, In-Young; Moglen, Glenn E.

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Year Published: 2020

Joint seasonality in geographic and ecological spaces, illustrated with a partially migratory bird

As most species live in seasonal environments, considering varying conditions is essential to understand species dynamics in both geographic and ecological spaces. Both resident and migratory species need to contend with seasonality and balance settling in favorable areas with tracking favorable environmental conditions during the year. We present...

Basille, Mathieu; Watling, James I.; Romanach, Stephanie; Borkhataria, Rena R.

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Year Published: 2020

Aligning climate models with stakeholder needs: Advances in communicating future rainfall uncertainties for south Florida decision makers

Changes in future precipitation are of great importance to climate data users in South Florida. A recent U.S. Geological Survey workshop, “Increasing Confidence in Precipitation Projections for Everglades Restoration,” highlighted a gap between standard climate model outputs and the climate information needs of some key Florida natural resource...

Infanti, Johnna; Kirtman, Ben P.; Aumen, Nicholas; Stamm, John F.; Polsky, Colin

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Year Published: 2020

Louisiana Barrier Island Comprehensive Monitoring Program: Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16

Barrier islands, headlands, and coastal shorelines provide numerous valuable ecosystem goods and services, including storm protection and erosion control for the mainland, habitat for fish and wildlife, salinity regulation in estuaries, carbon sequestration in marshes, and areas for recreation and tourism. These coastal features are dynamic...

Enwright, Nicholas M.; SooHoo, William M.; Dugas, Jason L.; Conzelmann, Craig P.; Laurenzano, Claudia; Lee, Darin M.; Mouton, Kelly; Stelly, Spencer J.
Enwright, N.M., SooHoo, W.M., Dugas, J.L., Conzelmann, C.P., Laurenzano, C., Lee, D.M., Mouton, K., and Stelly, S.J., 2020, Louisiana Barrier Island Comprehensive Monitoring Program—Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16: U.S. Geological Survey Open-File Report 2020–1030, 57 p., https://doi.org/10.3133/ofr20201030.

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Year Published: 2020

Using multiple environmental proxies and hydrodynamic modeling to investigate Late Holocene climate and coastal change within a large Gulf of Mexico estuarine system (Mobile Bay, Alabama, USA)

A high degree of uncertainty exists for understanding and predicting coastal estuarine response to changing climate, land-use, and sea-level conditions, leaving geologic records as a best-proxy for constraining potential outcomes. With the majority of the world's population focused in coastal regions, understanding how local systems respond to...

Smith, Christopher; Jones, Miriam C.; Osterman, Lisa; Passeri, Davina

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Year Published: 2020

Species richness responses to water withdrawal scenarios and minimum flow levels: Evaluating presumptive standards in the Tennessee and Cumberland River basins

Water resource managers are challenged to balance growing water demand with protecting aquatic ecosystems and biodiversity. Management decisions can benefit from improved understanding of water withdrawal impacts on hydrologic regimes and ecological assemblages. This study used Ecological Limit Functions for fish groups within the Tennessee and...

Driver, Lucas; Cartwright, Jennifer M.; Knight, Rodney; Wolfe, William J.

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Year Published: 2020

Microbiology and oxidation-reduction geochemistry of the water-table and Memphis aquifers in the Allen well field, Shelby County, Tennessee

The shallow and Memphis aquifers in Shelby County, Tennessee, are valuable natural resources that are used for domestic, public-supply, and agricultural water use. The Memphis aquifer is the primary source for public supply in West Tennessee and provides 170 to 175 million gallons of water per day for more than 900,000 people (Robinson, 2018). The...

Byl, Thomas D.; Bradley, Michael W.

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Year Published: 2020

Forecasting water demand across a rapidly urbanizing region

Urban growth and climate change together complicate planning efforts meant to adapt to increasingly scarce water supplies. Several studies have independently examined the impacts of urban planning and climate change on water demand, but little attention has been given to their combined impact. Here we forecast urban water demand using a...

Sanchez, Georgina M; Terando, Adam; Smith, Jordan W.; Garcia, Ana M.; Wagner, Chad R.; Meentemeyer, Ross K.

Filter Total Items: 500
A freshwater spring during normal groundwater levels and during a drought, when groundwater levels had fallen
July 19, 2016

Droughts can affect groundwater levels and freshwater springs..

Comparison of water from an underground spring in Georgia  during non-drought and drought periods.
Radium Springs, Albany, Georgia, USA

Freshwater springs on the land's surface are fed by groudwater findings its way to the surface. But, groundwater levels go up and down depending on the supply of water from precipitation and flow through the

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Cyanobacterial blooms in 2016 on Lake Okeechobee, Florida
July 9, 2016

Cyanobacterial blooms in 2016 on Lake Okeechobee, Florida

Cyanobacterial blooms, such as the one shown that occurred in 2016 on Lake Okeechobee, Florida, can release toxins.

June 6, 2016

Wave runup during Tropical Storm Colin at Madeira Beach, Florida

This short video demonstrates wave runup and setup on a beach on a stormy day during Tropical Storm Colin. The camera, positioned in the surf zone, shows a multistory building in the background, while waves run up the shallow beach and wash sand from the eroded dune edge (scarp). The vegetation that normally protects the dune has dangling roots where the sand has been

Fairweather Fault
June 5, 2016

Fairweather Fault

USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.

South Crillon Glacier
June 5, 2016

South Crillon Glacier

Nearly 60 years after a magnitude 7.7 earthquake struck Lituya Bay, Alaska — leading to a tsunami that devastated the area — six U.S. Geological Survey geologists revisited the isolated region of Alaska, to pick up where their scientific predecessors left off. In this photo, members of the USGS research team pause to take in the view of South Crillon Glacier from a study

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Left: Map of Tampa Bay area and Gulf of Mexico. Colored balloons along shore. Right: total-water-level graph (top) and diagram.
June 4, 2016

Total Water Level and Coastal Change Forecast Viewer

Screenshot of Total Water Level and Coastal Change Forecast Viewer on June 4, 2016, two days before Tropical Storm Colin was expected to hit Florida’s Gulf of Mexico coast. This forecast is for Treasure Island (blue balloon on map) on the day of Colin’s arrival (June 6, 2016). Top

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 Beach erosion at Rodanthe, NC, along the coast on August 30, 2011, three days after landfall of Hurricane Irene
April 14, 2016

Beach erosion, North Carolina, 2011, caused by Hurricane Irene.

Oblique aerial photograph near Rodanthe, NC, along the coast on August 30, 2011, three days after landfall of Hurricane Irene. A breach was carved through the barrier island, severing NC Highway 12. The storm surge was approximately 2 m high on the sound-side and was less on the ocean-side. Flow from the sound to the ocean may have played a role in cutting

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A colony of the soft coral known as the "bent sea rod" stands bleached on a reef off of Islamorada, Florida.
April 12, 2016

Bent Sea Rod Bleaching

A colony of the soft coral known as the "bent sea rod" stands bleached on a reef off of Islamorada, Florida. Hard and soft corals are presently bleaching- losing their symbiotic algae – all over the coral reefs of the Florida Keys due to unusually warm ocean temperatures this summer. Months with waters warmer than 85 F have become more frequent in the last several decades

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Water evaporating from a power-plant cooling tower.
April 9, 2016

Power-generating plants use evaporation to cool their hot water.

Cooling towers at a power-production facility

Power-generation plants, including Plant Bowen in Georgia, produce power by using heat (in this case, from burning coal) to convert water into steam. The steam, very hot and under a great deal of pressure, is pumped through pipes to turn the blades of a turbine, which is connected by a shaft to a

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Filter Total Items: 393
USGS science for a changing world logo
July 18, 2011

 Streamflow and groundwater conditions in southwestern Georgia and adjacent parts of Florida and Alabama continued to worsen during July. Waterways in many of the regions rivers are setting new record lows with gauges on the Flint, Suwannee, Ochlocknee, Alapaha, and Apalachicola rivers recording the lowest water levels in their history due to lower than normal rainfall.

USGS science for a changing world logo
July 15, 2011

A manatee spotted this week in Calvert County, Maryland is the same one that first made waves 17 years ago when he appeared in Chesapeake Bay just before the onset of winter and later had to be rescued.

USGS science for a changing world logo
July 15, 2011

Harvesting the bountiful and renewable energy of the Florida sun, a new solar heating system that will reduce carbon dioxide emissions and save on energy costs is being installed at the U.S. Geological Survey facility in St. Petersburg, Fla.  Evacuated-tube solar collectors will supplement the current natural-gas boiler to provide heat in the winter and reheat conditioned air in the summer.

USGS science for a changing world logo
June 24, 2011

Waterways in south Georgia's rivers are setting new record lows with gauges on the Flint, Suwannee, Ochlocknee, Alapaha and Altamaha rivers recording the lowest water levels in their history due to lower than normal rainfall.

USGS science for a changing world logo
June 7, 2011

The Tallapoosa River has new eyes.  A webcam recently installed at the site of the historic May 2003 flood near Wadley, Ala., by the U.S Geological Survey’s Alabama Water Science Center is capturing live streaming video, enabling scientists, emergency managers and the public to visually monitor the Tallapoosa River’s water levels in real time.

USGS science for a changing world logo
May 16, 2011

U.S. Geological Survey crews are measuring flooding along the Atchafalaya and Mississippi Rivers, including the Morganza and Bonnet Carre Spillways.

Several USGS streamgages located on the Mississippi and Atchafalaya Rivers are expected to reach the highest levels recorded since 1927.

USGS science for a changing world logo
May 13, 2011

Recent Landsat satellite data captured by the U.S. Geological Survey and NASA on May 10 show the major flooding of the Mississippi River around Memphis, Tenn. and along the state borders of Tennessee, Kentucky, Missouri, and Arkansas as seen from 438 miles above the Earth.

USGS science for a changing world logo
April 26, 2011

The National Earthquake Prediction Evaluation Council has issued a new report in which independent experts conclude that current USGS estimates for significant earthquake hazards in the New Madrid Seismic Zone—affecting eight central and eastern U.S states—are based on sound science.

USGS
December 1, 2010

Chattahoochee River Stakeholders are celebrating the 10th Anniversary of the BacteriALERT Monitoring Program. Scientists taking weekly water samples are a common sight within the Chattahoochee River National Recreation Area (CRNRA).

USGS
November 17, 2010

Approximately 13 million metric tons of rare earth elements (REE) exist within known deposits in the United States, according to the first-ever nationwide estimate of these elements by the U.S. Geological Survey.

USGS
November 16, 2010

The report, “Groundwater Availability of the Atlantic Coastal Plain of North and South Carolina,” is available online.

Large volumes of high quality groundwater fill aquifers along the Atlantic Coastal Plain (ACP) in North and South Carolina. Groundwater levels in much of the region remain relatively unchanged from predevelopment days, despite declines in some locations from large-scale pumping.

USGS
October 22, 2010

A new online and interactive flood preparedness tool is now available for the Flint River. Scientists from the U.S Geological Survey (USGS) and the National Weather Service (NWS) developed the new Flood Inundation Map to improve flood warnings and emergency management along the Flint River in Albany, Ga.

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