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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.

News

USGS: Science for a changing world
September 21, 2017

This page contains the weekly highlights from the Lower Mississippi-Gulf Water Science Center for the week of 9/112017 - 9/15/2017! Please take a look and see what we have been up to!

Satellite captured image of the rapidly intensifying storm, Harvey
September 8, 2017

As Harvey’s record breaking rainfall and catastrophic flood waters recede in Texas and western Louisiana, U.S. Geological Survey teams are collecting high water marks, monitoring water levels and coastal change, retrieving storm tide sensors and collecting samples for water quality analysis.

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.

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Harvey
August 29, 2017

Where: Westdale Heights Academic Magnet school, Baton Rouge, LA

Background:  Dennis Demcheck has been volunteering at the public school since 2012, discussing bird identification, migration patterns, and drawing birds. The presentation emphasized scientific observation and the importance of accurate data collection.

Partners/Stakeholders: None. Dennis talked to about 75 students...

Tennessee Water Quality Sampling Photo
June 26, 2017

National Water Quality Assessment Program (NAWQA) in Tennessee

Tennessee FloodWatch Infographic
June 26, 2017

Tennessee FloodWatch Information

Map of below normal 7-day average streamflow compared to historical streamflow for the day of year (Tennessee)
June 26, 2017

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...

Map of below normal 7-day average streamflow compared to historical streamflow for the day of year (Tennessee)
June 26, 2017

Web sites with climate-condition information

Map of below normal 7-day average streamflow compared to historical streamflow for the day of year (Tennessee)
June 26, 2017

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...

Duck River above Milltown Tennessee - Photograph
June 26, 2017

Basic hydrologic data collection at selected streams in Tennessee

Mississippi/Atchafalaya River Basins - SPARROW
June 23, 2017

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...

A feral hog is in a trap in southeastern U.S. awaiting immobilization and GPS collar.
March 3, 2017
Status: Active

The wild hog (Sus scrofa) is an exotic invasive species that significantly impacts native resources and their populations are expanding significantly throughout the United States.  In addition, wild hogs are likely contributing to the spread of disease such as pseudorabies. National Park Service units in the Southeast that have populations of exotic wild hogs include Big South Fork National...

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-...

Caney Fork at State Road 1 - Tennessee - Image
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. 

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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.

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.

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.

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.

Orthoimagery of Augusta Ga
April 12, 2016

Orthoimagery Data

Orthoimagery data typically are high resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a planimetric map. The National Map offers public domain, 1-meter orthoimagery for the conterminous United States with many urban areas and other locations at 2-foot or finer resolution.

Small Scale Collection USA
April 12, 2016

The National Map Small-Scale Collection

The National Map offers a collection of small-scale datasets, most of which are at 1:1,000,000. The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.

Gaging station on the Tanana River at Nenana, Alaska
March 10, 2016

Science Data Integration and Delivery

Consistent synthesis, integration, storage, and availability of fundamental data is critical to meeting the needs of USGS Science. We develop databases for hydrography, topography, invasive species, water resources, and many other datasets utilized by resource managers.

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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.

MAP study area
September 14, 2016

Subsurface geometry of the Mississippi Embayment Regional Aquifer Study (MERAS)

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.

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Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

Year Published: 2016

Growth, survival, longevity, and population size of the Big Mouth Cave salamander (Gyrinophilus palleucus necturoides) from the type locality in Grundy County, Tennessee, USA

Salamander species that live entirely in subterranean habitats have evolved adaptations that allow them to cope with perpetual darkness and limited energy resources. We conducted a 26-month mark–recapture study to better understand the individual growth and demography of a population of the Big Mouth Cave Salamander (Gyrinophilus palleucus...

Niemiller, Matthew L.; Glorioso, Brad M.; Fenolio, Dante B.; Reynolds, R. Graham; Taylor, Steven J.; Miller, Brian T.
Niemiller, M.L., Glorioso, B.M., Fenolio, D.B., Reynolds, R.G., Taylor, S.J., and Miller, B.T., 2016, Growth, survival, longevity, and population size of the Big Mouth Cave salamander (Gyrinophilus palleucus necturoides) from the type locality in Grundy County, Tennessee, USA: Copeia, v. 104, no. 1, p. 35-41, http://www.bioone.org/doi/full/10.1643/OT-14-197.

Year Published: 2001

An evaluation of borehole flowmeters used to measure horizontal ground-water flow in limestones of Indiana, Kentucky, and Tennessee, 1999

Three borehole flowmeters and hydrophysical logging were used to measure ground-water flow in carbonate bedrock at sites in southeastern Indiana and on the westcentral border of Kentucky and Tennessee. The three flowmeters make point measurements of the direction and magnitude of horizontal flow, and hydrophysical logging measures the magnitude of...

Wilson, John T.; Mandell, Wayne A.; Paillet, Frederick L.; Bayless, E. Randall; Hanson, Randall T.; Kearl, Peter M.; Kerfoot, William B.; Newhouse, Mark W.; Pedler, William H.
An evaluation of borehole flowmeters used to measure horizontal ground-water flow in limestones of Indiana, Kentucky, and Tennessee, 1999; 2001; WRI; 2001-4139; Wilson, John T.; Mandell, Wayne A.; Paillet, Frederick L.; Bayless, E. Randall; Hanson, Randall T.; Kearl, Peter M.; Kerfoot, William B.; Newhouse, Mark W.; Pedler, William H.

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August 7, 2017
This webinar was conducted on August 7, 2017 as part of the USGS National Climate Change and Wildlife Science Center’s Climate Change Science and Management Webinar Series, held in partnership with the USFWS National Conservation Training Center. Webinar Summary: The South Central U.S. is one of the main agricultural regions in North America: annual agricultural production is valued at more than...
The Chimney Tops 2 fire in Great Smoky Mountains National Park
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.
Image: Downtown Nashville
2010 (approx.)
Rivers in middle Tennessee crested May 2-3,2010, breaking records at many USGS-operated streamgages.The flood peak on the Cumberland River in downtown Nashville ranks as the highest observed during the past 73 years. Flooding on the Cumberland River damaged the Grand Ole Opry House, Bridgestone Arena, and other landmarks with several feet of water.
video thumbnail: Tennessee National Wildlife Refuge Visitor's Center Site Dedication
November 8, 2009
Dedication ceremony for the construction of the new Tennessee National Wildlife Refuge Visitor's Center by U.S. Fish and Wildife Director Same Hamilton, and refuge manage John Taylor.
September 2009 Flooding Chattahoochee River near Whitesburg (02338000)
September 14, 2009
Epic September 2009 Flooding Chattahoochee River near Whitesburg (02338000)
Image: Mississippi River near Tennessee, Kentucky, Missouri, Arkansas
The 2006 image (left) show the river in a more normal state, while the 2011 image (right) shows the massive flooding. The dark blue tones represent water or flooded areas, the light green is cleared fields, and light tones are clouds. Recent Landsat satellite data captured by the U.S. Geological Survey and NASA on May 10 show the major flooding of the Mississippi River along the state borders of...
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USGS: Science for a changing world
September 21, 2017

This page contains the weekly highlights from the Lower Mississippi-Gulf Water Science Center for the week of 9/112017 - 9/15/2017! Please take a look and see what we have been up to!

Satellite captured image of the rapidly intensifying storm, Harvey
September 8, 2017

As Harvey’s record breaking rainfall and catastrophic flood waters recede in Texas and western Louisiana, U.S. Geological Survey teams are collecting high water marks, monitoring water levels and coastal change, retrieving storm tide sensors and collecting samples for water quality analysis.

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.

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.

Map of the 48 contiguous states showing Microcystin concentrations
May 31, 2016

First-of-its-kind survey shows that algal toxins are found nationwide

USGS logo
December 1, 2015

A newly published, three-volume “Remote Sensing Handbook” is a comprehensive coverage of all remote sensing topics written by over 300 leading global experts.

Graph: Peak ground-motion variability for a magnitude 7.7 earthquake
July 30, 2015

Computer simulations of earthquake shaking, replicating the quakes that occurred in 1811-1812 in the New Madrid seismic zone (NMSZ), indicate that future large earthquakes there would produce major, prolonged ground shaking.

Crowdsourced Earthquake Warnings illustration
April 10, 2015

MENLO PARK, Calif.— Smartphones and other personal electronic devices could, in regions where they are in widespread use, function as early warning systems for large earthquakes according to newly reported research.

Crowdsourced Earthquake Warnings illustration
April 10, 2015

MENLO PARK, California — Los teléfonos móviles y otros dispositivos electrónicos personales podrían ayudar en las regiones donde se encuentran en uso generalizado, y pueden funcionar como sistemas de alerta para terremotos mayor según la nueva investigación científica recien publicada.

USGS logo
December 18, 2014

Secretary of the Interior Sally Jewell announced today that Interior’s Southeast Climate Science Center is awarding nearly $150,000 to its host university and other partners for research to guide managers of parks, refuges and other cultural and natural resources in planning how to help species and ecosystems adapt to climate change.

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