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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.

Filter Total Items: 30
Image of the Blue Ridge taken from the top of Stone Mountain
Date Published: September 27, 2018
Status: Active

Piedmont and Blue Ridge Project

The Piedmont and Blue Ridge Project is a geologic mapping project supported by the USGS National Cooperative Geologic Mapping Program. The Piedmont Blue Ridge Project aims to understand the geologic framework and tectonic evolution of terranes and basins in the Appalachian Piedmont and Blue Ridge, and their significance for water, mineral and energy resources, natural hazards, and engineering/...

Lower Mississippi-Gulf WSC Office Locations by State
Date Published: September 20, 2018
Status: Active

Contact Us

LMG Contacts by State:

Photo of Bird Bands in a Variety of Sizes and Types
Date Published: May 1, 2018
Status: Active

Bird Banding Laboratory

The Bird Banding Laboratory (BBL) is an integrated scientific program established in 1920 supporting the collection, archiving, management and dissemination of information from banded and marked birds in North America.  This information is used to monitor the status and trends of resident and migratory bird populations. Because birds are good indicators of the health of the environment, the...

Harvey
Date Published: August 29, 2017

Hydrologist visits 4th-graders at Baton Rouge public school

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
Date Published: June 26, 2017

National Water-Quality Assessment Program (NAWQA) in Tennessee

National Water Quality Assessment Program (NAWQA) in Tennessee

Tennessee FloodWatch Infographic
Date Published: June 26, 2017

Tennessee FloodWatch

Tennessee FloodWatch Information

Contacts: Rodney R Knight
Map of below normal 7-day average streamflow compared to historical streamflow for the day of year (Tennessee)
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...

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

Climatic Conditions in Tennessee

Web sites with climate-condition information

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

Duck River above Milltown Tennessee - Photograph
Date Published: June 26, 2017

TVA Monitoring Stations in Tennessee

Basic hydrologic data collection at selected streams in Tennessee

Contacts: W Scott Gain
Mississippi/Atchafalaya River Basins - SPARROW
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...

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Water
/data-tools/national-water-information-system-web-interface-nwisweb-0

National Water Information System web interface (NWISweb)

Application screenshot thumbnail
September 1, 2017

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

Web Application
/data-tools/national-water-information-system-nwis-mapper-0

National Water Information System (NWIS) Mapper

Screenshot of USGS National Water Information System (NWIS) mapper
August 30, 2017

The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.

Real-time Data
/data-tools/tennessee-current-water-conditions

Tennessee Current Water Conditions

Tennessee Current Water Conditions Image
November 29, 2016

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

Real-time Data
/data-tools/memphis-area-groundwater-level-network

Memphis Area Groundwater-Level Network

Memphis Area Groundwater-Level Network Map
September 26, 2016

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.

GIS Data
/data-tools/structures-data

Structures Data

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

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.

GIS Data
/data-tools/boundaries

Boundaries Data

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

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.

GIS Data
/data-tools/hydrography-data

Hydrography Data

Illustration related to the the river corridor
April 19, 2016

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

GIS Data
/data-tools/united-states-interagency-elevation-inventory-usiei

The United States Interagency Elevation Inventory (USIEI)

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

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.

GIS Data
/data-tools/elevation-data

Elevation Data

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

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.

GIS Data
/data-tools/orthoimagery

Orthoimagery Data

Orthoimagery of Augusta Ga
April 12, 2016

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.

GIS Data
/data-tools/national-map-small-scale-collection

The National Map Small-Scale Collection

Small Scale Collection USA
April 12, 2016

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.

Science Datasets
/data-tools/science-data-integration-and-delivery-0

Science Data Integration and Delivery

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

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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USGS
August 22, 2018

Flynn Creek crater is a 3.8 km diameter, 360-million-year-old impact structure located in north central Tennessee, and is an invaluable terrestrial analog for the study of impact cratering dynamics. The Flynn Creek Crater Sample Collection consists of over two thousand boxes of drill core from 18 drill holes in the crater’s central uplift, floor, and rim. 

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.

Filter Total Items: 31
Year Published: 2017

Continuity of the Reelfoot fault across the Cottonwood Grove and Ridgely faults of the New Madrid Seismic Zone

Previous investigators have argued that the northwest-striking Reelfoot fault of northwest Tennessee and southeastern Missouri is segmented. One segment boundary is at the intersection of the northeast-striking Cottonwood Grove and Ridgely strike-slip faults with the Reelfoot fault. We use seismic reflection and geologic mapping to locate and...

Greenwood, M.L.; Woolery, Edward W; Van Arsdale, R. B.; Stephenson, William J.; Patterson, Gary L.
Greenwood, M.L., Woolery, E.W., Van Arsdale, R.B., Stephenson, W.J., and Patterson, G.L., 2016, Continuity of the Reelfoot Fault Across the Cottonwood Grove and Ridgely Faults of the New Madrid Seismic Zone, Bulletin Seismological Society of America, v. 106, n. 6, p. 2674–2685, doi: 10.1785/0120150290.

Year Published: 2016

St. Louis area earthquake hazards mapping project; seismic and liquefaction hazard maps

We present probabilistic and deterministic seismic and liquefaction hazard maps for the densely populated St. Louis metropolitan area that account for the expected effects of surficial geology on earthquake ground shaking. Hazard calculations were based on a map grid of 0.005°, or about every 500 m, and are thus higher in resolution than any...

Cramer, Chris H.; Bauer, Robert A.; Chung, Jae-won; Rogers, David; Pierce, Larry; Voigt, Vicki; Mitchell, Brad; Gaunt, David; Williams, Robert; Hoffman, David; Hempen, Gregory L.; Steckel, Phyllis; Boyd, Oliver S.; Watkins, Connor M.; Tucker, Kathleen; McCallister, Natasha
Cramer C.H., Bauer R.A., Chung J.-W., Rogers J.D., Pierce L., Voigt V., Mitchell B., Gaunt D., Williams R.A., Hoffman D., Hempen G.L., Steckel P.J., Boyd O.S., Watkins C.M., Tucker K., McCallister N.S. St. Louis area earthquake hazards mapping project; seismic and liquefaction hazard maps Seismological Research Letters, January, 2017, Vol. 88, Issue 1, pp. 206-223

Year Published: 2016

Dense lower crust elevates long-term earthquake rates in the New Madrid seismic zone

Knowledge of the local state of stress is critical in appraising intraplate seismic hazard. Inverting earthquake moment tensors, we demonstrate that principal stress directions in the New Madrid seismic zone (NMSZ) differ significantly from those in the surrounding region. Faults in the NMSZ that are incompatible with slip in the regional stress...

Levandowski, William Brower; Boyd, Oliver S.; Ramirez-Guzman, Leonardo
Levandowski, W., O. S. Boyd, and L. Ramirez-Guzmán (2016), Dense lower crust elevates long-term earthquake rates in the New Madrid seismic zone, Geophys. Res. Lett., 43, doi:10.1002/2016GL070175.

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: 2015

Ground motion-simulations of 1811-1812 New Madrid earthquakes, central United States

We performed a suite of numerical simulations based on the 1811–1812 New Madrid seismic zone (NMSZ) earthquakes, which demonstrate the importance of 3D geologic structure and rupture directivity on the ground‐motion response throughout a broad region of the central United States (CUS) for these events. Our simulation set consists of 20...

Ramirez-Guzman, L.; Graves, Robert; Olsen, Kim B.; Boyd, Oliver S.; Cramer, Chris H.; Hartzell, Stephen; Ni, Sidao; Somerville, Paul G.; Williams, Robert; Zhong, Jinquan

Year Published: 2015

Crustal deformation in the New Madrid seismic zone and the role of postseismic processes

Global Navigation Satellite System data across the New Madrid seismic zone (NMSZ) in the central United States over the period from 2000 through 2014 are analyzed and modeled with several deformation mechanisms including the following: (1) creep on subsurface dislocations, (2) postseismic frictional afterslip and viscoelastic relaxation from the...

Boyd, Oliver S.; Robert Smalley, Jr; Zeng, Yuehua
Boyd, O. S., R. Smalley Jr., and Y. Zeng (2015), Crustal deformation in the New Madrid seismic zone and the role of postseismic processes, J. Geophys. Res. Solid Earth, 120, doi:10.1002/2015JB012049.

Year Published: 2014

Why the New Madrid earthquakes are M 7–8 and the Charleston earthquake is ∼M 7

Estimates of magnitudes of large historical earthquakes are an essential input to and can seriously affect seismic‐hazard estimates. The earthquake‐intensity observations, modified Mercalli intensities (MMI), and assigned magnitudes Mof the 1811–1812 New Madrid events have been reinterpreted several times in the last decade and have...

Cramer, Chris H.; Boyd, Oliver S.
Cramer, C. H., and O. S. Boyd (2014), Why the New Madrid Earthquakes are M7–8 and the Charleston Earthquake is ~M7, Bull. Seis. Soc. Am., 104, 2884–2903, doi:10.1785/0120120257.

Year Published: 2013

Workshop on New Madrid geodesy and the challenges of understanding intraplate earthquakes

On March 4, 2011, 26 researchers gathered in Norwood, Massachusetts, for a workshop sponsored by the U.S. Geological Survey and FM Global to discuss geodesy in and around the New Madrid seismic zone (NMSZ) and its relation to earthquake hazard. The group addressed the challenge of reconciling current geodetic measurements, which show low present-...

Boyd, Oliver; Calais, Eric; Langbein, John; Magistrale, Harold; Stein, Seth; Zoback, Mark
Workshop on New Madrid geodesy and the challenges of understanding intraplate earthquakes; 2013; OFR; 2013-1004; Boyd, Oliver ; Calais, Eric ; Langbein, John ; Magistrale, Harold ; Stein, Seth ; Zoback, Mark

Year Published: 2012

Magnitude Estimates of M7.3-7.8 for the 1811-1812 New Madrid and M7.0 for the 1886 Charleston Earthquakes from a Monte Carlo Analysis of Mean MMIs

No abstract available

Cramer, Chris H.; Boyd, Oliver S.
Magnitude Estimates of M7.3-7.8 for the 1811-1812 New Madrid and M7.0 for the 1886 Charleston Earthquakes from a Monte Carlo Analysis of Mean MMIs; 2012; Conference publication; Conference publication; Eastern Section‐SSA 2012 Meeting Report; Cramer, Chris H.; Boyd, Oliver S.

Year Published: 2011

Studying geodesy and earthquake hazard in and around the New Madrid Seismic Zone

Workshop on New Madrid Geodesy and the Challenges of Understanding Intraplate Earthquakes; Norwood, Massachusetts, 4 March 2011 Twenty-six researchers gathered for a workshop sponsored by the U.S. Geological Survey (USGS) and FM Global to discuss geodesy in and around the New Madrid seismic zone (NMSZ) and its relation to earthquake hazards. The...

Boyd, Oliver Salz; Magistrale, Harold
Studying geodesy and earthquake hazard in and around the New Madrid Seismic Zone; 2011; Article; Journal; EOS, Transactions of the American Geophysical Union; Boyd, Oliver Salz; Magistrale, Harold

Year Published: 2011

20 cool facts about the New Madrid Seismic Zone-Commemorating the bicentennial of the New Madrid earthquake sequence, December 1811-February 1812 [poster]

This poster summarizes a few of the more significant facts about the series of large earthquakes that struck the New Madrid seismic zone of southeastern Missouri, northeastern Arkansas, and adjacent parts of Tennessee and Kentucky from December 1811 to February 1812. Three earthquakes in this sequence had a magnitude (M) of 7.0 or greater. The...

Williams, R.A.; McCallister, N.S.; Dart, R.L.
20 cool facts about the New Madrid Seismic Zone-Commemorating the bicentennial of the New Madrid earthquake sequence, December 1811-February 1812 [poster]; 2011; GIP; 134; Williams, R. A.; McCallister, N.S.; Dart, R. L.

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August 7, 2017

Developing Effective Drought Monitoring Tools for Farmers and Ranchers

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

...
View of rapids on the ​Ocoee River in Tennessee with green trees in the background
December 31, 2016

​Ocoee River, Tennessee

Ocoee River, Tennessee

The Chimney Tops 2 fire in Great Smoky Mountains National Park
November 30, 2016

Chimney Tops 2 fire in Great Smoky Mountains National Park

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

Smoky Mountain fires on the night of Nov. 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.

Flowing Water In An Appalachian Mountain Stream in the Spring
December 31, 2012

An Appalachian Mountain Stream in the Spring

An Appalachian Mountain Stream in the Spring. Photographed by Samuel H Austin

Panoramic view of the Blue Ridge (Virginia, North Carolina and Tennessee)
October 3, 2012

Blue Ridge of Virginia, North Carolina and Tennessee

Panoramic view (~270 degrees) looking across the Blue Ridge of Virginia, North Carolina and Tennessee (from left to right).  The Valley and Ridge is in the distance (gap between mountains). 

The Piedmont and Blue Ridge provinces extend from southeastern New York to Alabama and include parts of eleven states in the Eastern U.S. and part of Washington, D.C. Blue Ridge

...
Measuring discharge during May 2011 Memphis, Tennessee flood
May 9, 2011

Measuring discharge during May 2011 Memphis, Tennessee flood

Measuring discharge during May 2011 Memphis, Tennessee flood

USGS boat crew prepares for a discharge measurement during May 2011 Memphis, Tennessee flooding
May 4, 2011

USGS boat crew prepares for a discharge measurement

USGS boat crew prepares for a discharge measurement during May 2011 Memphis, Tennessee flooding

Image: Downtown Nashville
December 31, 2010

Downtown Nashville

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

Tennessee National Wildlife Refuge Visitor's Center Site Dedication

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.

A picture of a cleared lot with construction equipment in TN
July 1, 2003

A cleared lot with construction equipment in TN

A grated lots with construction equiptment. Houses are in the background. The picture was taken in Tennesse as a part of a Land Cover Trends project field trip.

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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
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
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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