Unified Interior Regions

Region 4: Mississippi Basin

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Filter Total Items: 238
Date published: October 24, 2011

Watershed Restoration & Protection Studies (319 Monitoring) - Mississippi

The USGS-MWSC partners with various federal, state and local cooperating agencies to implement Monitoring Plans for watershed restoration or protection projects. The purpose of monitoring is to measure change in water quality throughout the duration of watershed specific restoration efforts targeted to remediate specific pollutants of concern. The goal is to document, using defensible...

Date published: September 5, 2011
Status: Active

Water Resources of Louisiana’s Parishes

The USGS is summarizing basic information on water resources for each parish in Louisiana and presenting the information in fact-sheet format. Information presented includes groundwater and surface-water availability, quality, development, use, and trends. These brief summaries of water resources will provide parish officials, local officials and concerned citizens with information needed to...

Contacts: Vincent E White
Date published: January 16, 2011

A Method for Identifying Karst Features in the Ozarks and Their Correlation to Ground-Water Quality Impacts

Short Title: Ozark Karst Study

Project Chiefs: Tim Kresse (USGS-Water), Phil Hays (USGS-Water), James Kaufmann (USGS-Geography), Mark Hudson (USGS-Geology), Esther Stroh (USGS-Biology)

Cooperator: U.S. Geological Survey

Project Time Frame: 2007 - 2011

Three major physiographic provinces in the Ozark Plateaus in Arkansas and Missouri include diverse topography and...

Contacts: Phillip D Hays
Date published: June 3, 2010
Status: Active

Assessing the Influence of the Davis Pond Freshwater Diversion on Water-Quality in Waterways and Marshes of Barataria Preserve

In 2002, the Davis Pond Freshwater Diversion began diverting up to 10,000 cfs of Mississippi River water into the waters surrounding the Barataria Preserve of the Jean Lafitte National Historical Park and Preserve. Previously, precipitation, local surface-water runoff, and occasional marine intrusion largely determined quality of surface and marsh porewaters at the Preserve. The new influx of...

Date published: December 11, 2009

Mississippi Hydrologic Unit Code Map

The U.S. Geological Survey, in cooperation with the Mississippi Department of Environmental Quality, U.S. Department of Agriculture-Natural Resources Conservation Service, Mississippi Department of Transportation, U.S. Department of Agriculture-Forest Service, and the Mississippi Automated Resource Information System developed a 1:24,000-scale Watershed Boundary Dataset for Mississippi...

Date published: September 29, 2009
Status: Active

Physical soil properties of wetlands, and the hydrology of tidal swamp, tidal creeks, adjacent rivers, and adjacent marshes along the coastal gradient of palustrine, oligohaline, and mesohaline sites in relation to drought, storm, and tidal events

The LaWSC, in collaboration with researchers from the National Wetlands Research Center (NWRC), the NRP program, Auburn University, and Clemson University, is documenting conditions in tidal swamps in Louisiana, Georgia, and South Carolina as a baseline with which to compare future data to assess the impacts of climate change in such areas. Tidal swamps in these states offer an array of...

Date published: September 29, 2009
Status: Completed

Water quality monitoring in the Mississippi River Gulf Outlet, the Gulf Intracoastal Waterway, Lake Borgne, and adjacent waterways in southeastern Louisiana, 2009 to 2013

In early 2009, the U.S. Army Corps of Engineers (USACE) constructed a rock barrier across the Mississippi River Gulf Outlet (MRGO), a navigation channel between the Port of New Orleans and the Gulf of Mexico. In August 2008, prior to construction of the rock barrier, the LaWSC, in cooperation with the USACE, began monitoring specific conductance, dissolved oxygen, and discharge in the MRGO to...

Date published: September 23, 2009
Status: Active

Assessment of water quality and soil conditions at the Bayou aux Carpes 404(C) property wetlands

Wetlands in the Bayou aux Carpes area, south of New Orleans, La., currently are isolated from direct inflow of storm water runoff by levees and spoil banks. The USACE is considering removal of a spoil bank that would allow storm-water runoff to flow through and across the wetlands. . The wetlands consist of floating marshes, with a predominately organic substrate, and forested wetlands, some...

Date published: September 1, 2009

Principal Aquifer Susceptibility Study

Short Title: Principal Aquifers

Project Chief: Brian Clark

Cooperator: U.S. Geological Survey National Water-Quality Assessment Program

Project Time Frame: May 2008 - Sept 2009

The principal aquifer study will use regional ground-water MODFLOW models and...

Contacts: Brian R Clark
Date published: September 1, 2009

Mississippi Embayment Regional Aquifer Study (MERAS)

Short Title: MERAS Model

Project Chief: Brian Clark

Cooperator: U.S. Geological Survey Office of Ground-Water Resources Program

Project Time Frame: January 2006 - 2009

Fresh ground-water in the Mississippi embayment can be found in alternating formations of...

Contacts: Brian R Clark
Date published: July 14, 2009

Quality of Shallow Groundwater and Drinking Water in the Mississippi Embayment-Texas Coastal Uplands Aquifer System and the Mississippi River Valley Alluvial Aquifer, South-Central United States, 1994–2004

The Mississippi embayment-Texas coastal uplands aquifer system is an important source of drinking water, providing about 724 million gallons per day to about 8.9 million people in Texas, Louisiana, Mississippi, Arkansas, Missouri, Tennessee, Kentucky, Illinois, and Alabama. The Mississippi River Valley alluvial aquifer ranks third in the Nation for total withdrawals of which more than 98...

Date published: April 18, 2009
Status: Active

Simulation of Groundwater Flow in the "1,500-Foot" and "2,000-Foot" Sands and Movement of Saltwater in the “2000-Foot” Sand of the Baton Rouge Area, Louisiana

Saltwater encroachment has been detected in six aquifers, including the "1,500-foot" and "2,000-foot" sands, north of the Baton Rouge fault in East Baton Rouge Parish. The encroachment is in response to ground-water withdrawals, primarily for public supply and industrial uses, in Baton Rouge. Additional information is needed for water planners and managers in the Baton Rouge area to make...

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Year Published: 2019

Groundwater availability in the Ozark Plateaus aquifer system

Executive SummaryThe study described in this report, initiated by the U.S. Geological Survey in 2014, was designed to evaluate fresh groundwater resources within the Ozark Plateaus, central United States, as an area within a broader national assessment of groundwater availability. The goals of the Ozark study were to evaluate historical effects of...

Clark, Brian R.; Duncan, Leslie L.; Knierim, Katherine J.
Clark, B.R., Duncan, L.L., and Knierim, K.J., 2019, Groundwater availability in the Ozark Plateaus aquifer system: U.S. Geological Survey Professional Paper 1854, 82 p., https://doi.org/10.3133/pp1854.

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Year Published: 2019

Tropical cyclones and the organization of mangrove forests: A review

Background Many mangrove ecosystems are periodically exposed to high velocity winds and surge from tropical cyclones and often recover with time and continue to provide numerous societal benefits in the wake of storm events. Scope This review focuses on the drivers and disturbance mechanisms (visible and functional) that tropical cyclones of...

Krauss, Ken; Osland, Michael

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Year Published: 2019

Catalog of microscopic organisms of the Everglades, part 2—The desmids of the Arthur R. Marshall Loxahatchee National Wildlife Refuge

The Arthur R. Marshall Loxahatchee National Wildlife Refuge (refuge), Boynton Beach, Florida, contains approximately 147,000 acres southeast of Lake Okeechobee. Water quality in the interior portion of the refuge is strongly influenced by rainfall, resulting in slightly acidic waters with low dissolved ions. Desmids, a unique, ornate group of...

Rosen, Barry H.; Stahlhut, Katherine N.; Hall, John D.
Rosen, B.H., Stahlhut, K.N., and Hall, J.D., 2019, Catalog of microscopic organisms of the Everglades, part 2—The desmids of the Arthur R. Marshall Loxahatchee National Wildlife Refuge: U.S. Geological Survey Scientific Investigations Report 2019–5074, 277 p., https://doi.org/10.3133/sir20195074.

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Year Published: 2019

Withdrawal and consumption of water by thermoelectric power plants in the United States, 2015

The U.S. Geological Survey has developed models to estimate thermoelectric water use based on linked heat and water budgets. The models produced plant-level withdrawal and consumption estimates using consistent methods for 1,122 water-using, utility-scale thermoelectric power plants in the United States for 2015. Total estimated withdrawal for...

Harris, Melissa A.; Diehl, Timothy H.
Harris, M.A., and Diehl, T.H., 2019, Withdrawal and consumption of water by thermoelectric power plants in the United States, 2015: U.S. Geological Survey Scientific Investigations Report 2019–5103, 15 p., https://doi.org/10.3133/sir20195103.

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Year Published: 2019

Water for Long Island: Now and for the future

Do you ever wonder where your water comes from? If you live in Nassau or Suffolk County, the answer is, groundwater. Groundwater is water that started out as precipitation (rain and snow melt) and seeped into the ground. This seepage recharges the freshwater stored underground, in the spaces between the grains of sand and gravel in what are...

Masterson, John; Breault, Robert
Masterson, J.P., and Breault, R., 2019, Water for Long Island—Now and for the future: U.S. Geological Survey Fact Sheet 2019–3052, 2 p., https://doi.org/10.3133/fs20193052.

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Year Published: 2019

Standardizing a non-lethal method for characterizing the reproductive status and larval development of freshwater mussels (Bivalvia: Unionoida)

Actively monitoring the timing, development, and reproductive patterns of endangered species is critical when managing for population recovery. Freshwater mussels are among the most imperiled organisms in the world, but information about early larval (glochidial) development and brooding periods is still lacking for many species. Previous studies...

Beaver, Caitlin; Geda, Susan; Johnson, Nathan

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Year Published: 2019

Reaffirmed occurrence of two vulnerable caddisfly species of conservation concern

Maramec Spring is home to two Ozark endemic caddisfly Species of Conservation Concern (SOCC). The Missouri Glyphospsyche Caddisfly, Glyphospsyche missouri, (Critically Imperiled; State Rank-S1; Global Rank-G1) is known from Maramec Spring and the receiving spring branch and nowhere else in the world. Similarly, the Artesian Agapetus Caddisfly,...

Mabee, William; Schuhmann, Andrea; Poulton, Barry C.; Girondo, Jennifer; Swee, Wes; Buckley, Tealetha; Bowles, David; Bowles, Beth; Rhodes, Russell

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Year Published: 2019

Prediction and inference of flow-duration curves using multi-output neural networks

We develop multi-output neural network models (MNNs) to predict flow-duration curves (FDCs) in 9,203 ungaged locations in the Southeastern United States for six decades between 1950-2009. The model architecture contains multiple response variables in the output layer that correspond to individual quantiles along the FDC. During training,...

Worland, Scott C.; Steinschneider, Scott; Asquith, William H.; Knight, Rodney; Wieczorek, Michael E.

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Year Published: 2019

Applying the ecology of aquatic–terrestrial linkages to freshwater and riparian management

Global stressors such as climate change, invasive species, urbanization, agricultural practices, and pollution can alter aquatic resource subsidies to terrestrial consumers. The effects of these stressors on timing, quality, and quantity of aquatic subsidies, such as adult aquatic insects, to birds, herpetofauna, and mammals, have large...

Kraus, Johanna M.

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Year Published: 2019

Wetland biomass and productivity in Coastal Louisiana: Base line data (1976-2015) and knowledge gaps for the development of spatially explicit models for ecosystem restoration and rehabilitation initiatives

Coastal Louisiana host 37% of the coastal wetland area in the conterminous US, including one of the deltaic coastal regions more susceptible to the synergy of human and natural impacts causing wetland loss. As a result of the construction of flood protection infrastructure, dredging of channels across wetlands for oil/gas exploration and maritime...

Rivera-Monroy, Victor H.; Elliton, Courtney; Narra, Siddhartha; Meselhe, Ehab; Zhao, Xiaochen; White, Eric; Sasser, Charles E.; Visser, Jenneke M.; Meng, X.; Wang, Hongqing; Xue, Zuo; Jaramillo, Fernando

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Year Published: 2019

Environmental DNA (eDNA) detection of nonnative bullseye snakehead in southern Florida

Bullseye Snakehead Channa marulius (Hamilton 1822) was first detected in the southern Florida town of Tamarac in 2000 and has been expanding its geographic range since. Environmental DNA (eDNA) analysis is a newly-developed technique used to noninvasively detect cryptic or low-density species or those that are logistically difficult-to-study....

Hunter, Margaret; Schofield, Pam; Meigs-Friend, Gaia; Brown, Mary; Ferrante, Jason

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Year Published: 2019

Benefits and limitations of installing driving surface aggregate at two federal lands sites

The worldwide network of unpaved roads is estimated to include at least 14 million km (8.7 million miles; 1). Although they are vital for local communities, these roads are expensive to maintain and may cause environmental damage through sediment and dust pollution (e.g., 2). Among aggregate-surfaced roads, locally available materials are often...

Kunz, Bethany K.; Chase, Eric H.; Bloser, Steve M.; Kestler, Maureen A.; Jutz, Brandon

Filter Total Items: 248
USGS science for a changing world logo
September 16, 2004

Scientists at the U.S. Geological Survey (USGS) are closely watching the Gulf of Mexico shoreline to understand the impact of Hurricane Ivan. The shoreline in the Gulf is particularly vulnerable to storm surge and coastal change during hurricanes because of the low elevation, shoreline retreat and subsidence in the Mississippi Delta regions.

USGS
September 16, 2004

Scientists at the U.S. Geological Survey (USGS) are closely watching the Gulf of Mexico shoreline to understand the impact of Hurricane Ivan. The shoreline in the Gulf is particularly vulnerable to storm surge and coastal change during hurricanes because of the low elevation, shoreline retreat and subsidence in the Mississippi Delta regions.

USGS science for a changing world logo
June 30, 2004

Today, June 30, 2004, the U.S. Geological Survey (USGS) announces the recipients of the first year of the Mineral Resources External Research Program, a grant and/or cooperative agreement opportunity designed to support minerals research. The grant award is split among six topics that will enhance ongoing research in the USGS and deliver products within one year.

USGS
June 7, 2004

A new assessment of shoreline change on the Gulf of Mexico, released today by the U.S. Geological Survey, shows that 61 percent of the Gulf Coast shoreline is eroding. Some areas are losing sand more rapidly than others and some areas are actually gaining sand.

USGS science for a changing world logo
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS science for a changing world logo
April 1, 2004

A new map from the U.S. Geological Survey and the Central United States Earthquake Consortium shows that Central States, including Arkansas, Tennessee, Missouri, Kentucky and Indiana are among the most seismically active states east of the Rocky Mountains. More than 800 earthquakes are cataloged on the map that depicts the locations of earthquakes large enough to be felt, since 1699.

USGS
April 1, 2004

A new map from the U.S. Geological Survey and the Central United States Earthquake Consortium shows that Central States, including Arkansas, Tennessee, Missouri, Kentucky and Indiana are among the most seismically active states east of the Rocky Mountains. More than 800 earthquakes are cataloged on the map that depicts the locations of earthquakes large enough to be felt, since 1699.

USGS science for a changing world logo
October 8, 2003

Included this month:

Hurricane Isabel Makes Her Mark on the North Carolina Coast

Mayans in the Everglades?

Submerged Ice Bridge Reveals Ancient Secrets About Alaska

America’s Deepest Coral Reef

Young Tortises on Mojave’s Menu

Measuring Floods From A Distance

Is the World’s Fuel Tank on Empty?

USGS
October 7, 2003

U.S. Geological Survey (USGS) researchers investigating 51 streams in nine Midwestern States found low levels of the herbicide glyphosate in 36 percent of the samples tested, and found its degradation product in 69 percent of the samples tested. Antibiotics were found in few samples.

USGS
December 20, 2001

The U.S. Geological Survey has named Dr. Michael J. Mac as the new Director of the Columbia Environmental Research Center (CERC) in Columbia, Mo.

USGS science for a changing world logo
October 18, 2001

The U.S. Geological Survey (USGS) is participating in nine of the 14 public workshops scheduled by the U.S. Army Corps of Engineers (COE) this fall. The Corps of Engineers is conducting the workshops and a series of hearings to receive public comment on their recently released Revised Draft Environmental Impact Statement to the Master Water Control Manual for the Missouri River system.