Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 239
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...

Date published: March 1, 2009

Characterization of Macroinvertebrate and Fish Assemblages at 35 Streams in Southwestern Louisiana and an Assessment of Their Relations to Water-Quality and Physical Habitat

Short Title: Biological Characterization of Louisiana Streams

Project Chief: Billy Justus

Cooperator: U.S. Environmental Protection Agency

Project Time Frame: 2007 - 2009

Information is needed to support water-resources management...

Contacts: Billy G Justus
Date published: February 9, 2009

Preliminary Characterization of Thermal Waters East of Hot Springs National Park - Arkansas

Short Title: Hot Springs Thermal Study

Project Chief: Tim Kresse

Cooperators: Arkansas State Highway and Transportation Department

Project Time Frame: 2007 - 2009

Established in 1832 to preserve 47 hot springs flowing from of Hot Springs Mountain, Hot Springs National Park (HSNP) is the oldest National Park in the...

Contacts: Phillip D Hays
Date published: January 21, 2009

Digital Hydrogeologic Surface and Thickness of the Mississippi Embayment Regional Aquifer Study (MERAS)

Short Title: MERAS Framework

Project Chief: Rheannon Hart

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

Project Time Frame: January 2006 - 2009

A hydrogeologic framework for a ground-water flow model is under development as part...

Contacts: Rheannon M Hart
Date published: January 1, 2009

Lower Mississippi River National Rivers and Streams Assessment

Short Title: Mississippi River NRSA

Project Chief: Billy Justus

Cooperator: U.S. Environmental Protection Agency

Project Time Frame: 2008 - 2009

The USGS Arkansas and Missouri Water Science Centers (WSC) are conducting a study for the U.S. Environmental...

Contacts: Billy G Justus
Date published: September 1, 2008

Analysis of Chloride Data in the Alluvial Aquifer of Southeastern Arkansas

Short Title: Southeastern Arkansas Chloride Study
Project Chief: Brian Clark
Cooperator: Boeuf-Tensas Regional Irrigation Water Distribution District
Project Time Frame: July 2007 - September 2008

The Mississippi River Valley alluvial aquifer is one of the highest use aquifer systems...

Contacts: Brian R Clark
Date published: January 1, 2008

Water Quality of Potential Reference Lakes in Two Level-Three Ecoregions of Arkansas

Short Title: Reference Lakes

Project Chief: Billy Justus

Cooperators: Arkansas Department of Environmental Quality and U. S. Environmental Protection Agency

Project Time Frame: 2007 - 2008

The Arkansas Department of Environmental Quality has classified all lakes within Arkansas into five classifications...

Contacts: Billy G Justus
Date published: January 1, 2001
Status: Active

Water Use in Louisiana

The U.S. Geological Survey (USGS), in cooperation with the Louisiana Department of Transportation and Development (DOTD), has collected and published information on water withdrawals and use on a 5-year basis since 1960. The reports present information on withdrawals from ground- and surface-water sources for use in water supply, industry, power generation, rural domestic, livestock,...

Date published: September 15, 2000

East Baton Rouge Parish Hurricane Response Map

In the event of a hurricane, the appropriate response could save your life. This “East Baton Rouge Parish Hurricane Response Map” is a tool that can be useful in making decisions pertaining to evacuation and safety. IF LOCAL AUTHORITIES RECOMMEND EVACUATION, YOU SHOULD LEAVE--via major evacuation routes shown in red. Louisiana State Police Troop (A) headquarters can assist you in the most...

Date published: January 1, 1999

Mississippi Delta Management Systems Evaluation Areas (MDMSEA)

The Mississippi Delta Management Systems Evaluation Areas (MDMSEA) Project began in 1995 with two purposes: 1) to assess how agricultural activities affect water quality; and 2) to evaluate Best Management Practices (BMPs) that mitigate agricultural nonpoint source pollution. The project is located in the northwestern portion of Mississippi, an area of intense agriculture referred to as the...

Date published: September 1, 1977
Status: Active

Arkansas Water Use Program

In 1977, the Congress of the United States recognized the need for uniform, current, and reliable information on water use and directed the U.S. Geological Survey to establish a National Water-Use Information Program (NWUIP) to complement the Survey's data on the availability and quality of the Nations water resources. Since 1985 site-specific water-use data for several categories have been...

Filter Total Items: 4,622
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Year Published: 2020

Repurposing a hindcast simulation of the 1926 Great Miami Hurricane, south Florida

Hydrodynamic model hindcasts of the surface water and groundwater of the Everglades and the greater Miami, Florida, area were used to simulate hydrology using estimated storm surge height, wind field, and rainfall for the Great Miami Hurricane (GMH), which struck on September 18, 1926. Ranked estimates of losses from hurricanes in inflation-...

Krohn, M. Dennis; Swain, Eric D.; Langtimm, Catherine A.; Obeysekera, Jayantha
Krohn, M.D., Swain, E.D., Langtimm, C.A., and Obeysekera, J., 2020, Repurposing a hindcast simulation of the 1926 Great Miami Hurricane, south Florida: U.S. Geological Survey Open-File Report 2020–1010, 9 p., https://doi.org/10.3133/ofr20201010.

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Year Published: 2020

Distribution of deep-water scleractinian and stylasterid corals across abiotic environmental gradients on three seamounts in the Anegada Passage

In the Caribbean Basin the distribution and diversity patterns of deep-sea scleractinian corals and stylasterid hydrocorals are poorly known compared to their shallow-water relatives. In this study, we examined species distribution and community assembly patterns of scleractinian and stylasterid corals on three high-profile seamounts within the...

Auscavitch, Steven R.; Lunden, Jay J.; Barkman, Alexandria; Quattrini, Andrea; Demopoulos, Amanda; Cordes, Erik E.

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Year Published: 2020

The importance of the Northeastern Gulf of Mexico to foraging loggerhead sea turtles

Identification of high-use foraging sites where imperiled sea turtles are resident remains a globally-recognized conservation priority. In the biodiverse Gulf of Mexico (GoM), recent telemetry studies highlighted post-nesting foraging sites for federally threatened loggerhead turtles (Caretta caretta). Our aim here was to discern loggerhead use of...

Hart, Kristen M.; Lamont, Margaret M.; Iverson, Autumn; Smith, Brian

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Year Published: 2020

Evaluation of acute and chronic toxicity of nickel and zinc to 2 sensitive freshwater benthic invertebrates using refined testing methods

The US Environmental Protection Agency (USEPA) is reviewing the protectiveness of the national ambient water quality criteria (WQC) for nickel (Ni) and zinc (Zn) and compiling toxicity databases to update the WQC. An amphipod (Hyalella azteca) and a unionid mussel (Lampsilis siliquoidea) have shown high sensitivity to Ni and Zn in previous studies...

Wang, Ning; Kunz, James L.; Cleveland, Danielle; Steevens, Jeffery; Hammer, Edward J.; Van Genderen, Eric; Ryan, Adam C.; Schlekat, Christian E.

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Year Published: 2020

Water resources of Evangeline Parish, Louisiana

Information concerning the availability, use, and quality of water in Evangeline Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 282.66 million gallons...

Murphy, Chid J.; White, Vincent E.
Murphy, C.J., and White, V.E., 2020, Water resources of Evangeline Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3020, 6 p., https://doi.org/10.3133/fs20203020.

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Year Published: 2020

Water resources of Avoyelles Parish, Louisiana

Information concerning the availability, use, and quality of water in Avoyelles Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 70 million gallons per...

White, Vincent E.
White, V.E., 2020, Water resources of Avoyelles Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3011, 6 p., https://doi.org/10.3133/fs20203011.

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Year Published: 2020

A trapping survey targeting head-started alligator snapping turtles in southwest Louisiana

The alligator snapping turtle Macrochelys temminckii is the largest freshwater turtle in North America and is sought after as a food source, primarily in Louisiana. Decades of intensive commercial harvest of alligator snapping turtles has been implicated in population declines. The Louisiana Department of Wildlife and Fisheries initiated a head-...

Glorioso, Brad; Muse, Lindy J.; Hillard, Cory J; Maldonado, Brittany R.; Streeter, Jared; Battaglia, Charles D; Waddle, J. Hardin

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Year Published: 2020

Low oxygen: A (tough) way of life for Okavango fishes

Botswana’s Okavango Delta is a World Heritage Site and biodiverse wilderness. In 2016–2018, following arrival of the annual flood of rainwater from Angola’s highlands, and using continuous oxygen logging, we documented profound aquatic hypoxia that persisted for 3.5 to 5 months in the river channel. Within these periods, dissolved oxygen rarely...

Edwards, Thea Margaret; Mosie, Ineelo J.; Moore, Brandon C.; Lobjoit, Guy; Schiavone, Kelsie; Bachman, Robert E.; Murray-Hudson, Mike

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Year Published: 2020

Legacy effects of hydrologic alteration in playa wetland responses to droughts

Wetland conservation increasingly must account for climate change and legacies of previous land-use practices. Playa wetlands provide critical wildlife habitat, but may be impacted by intensifying droughts and previous hydrologic modifications. To inform playa restoration planning, we asked: (1) what are the trends in playa inundation? (2) what...

Russell, Micah T.; Cartwright, Jennifer M.; Collins, Gail H.; Long, Ryan A.; Eitel, Jan H.

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Year Published: 2020

A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest

This guidebook provides user-friendly overviews of a variety of spatial datasets relevant to conservation and management of natural resources in the face of climate change in the Pacific Northwest, United States. Each guidebook chapter was created using a standardized template to summarize a spatial dataset or a group of closely related datasets....

Cartwright, Jennifer M.; Cartwright, Jennifer M.; Belote, Travis; Blasch, Kyle W.; Campbell, Steve; Chambers, Jeanne C.; Davis, Raymond J.; Dobrowski, Solomon; Dunham, Jason B.; Gergel, Diana; Isaak, Daniel; Jaeger, Kristin; Krosby, Meade; Langdon, Jesse; Lawler, Joshua J.; Littlefield, Caitlin E; Luce, Charles H; Maestas, Jeremy D; Martinez, Anthony; Meddens, Arjan J.H.; Michalak, Julia; Parks, Sean A.; Peterman, Wendy; Popper, Ken; Ringo, Chris; Sando, Roy; Schindel, Michael; Stralberg, Diana; Theobald, David M.; Walker, Nathan; Wilsey, Chad; Yang, Zhiqiang; Yost, Andrew

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Year Published: 2020

Thiamine concentrations in lake trout and Atlantic salmon eggs during 14 years following the invasion of alewife in Lake Champlain

Thiamine (vitamin B1) deficiency in Great Lakes salmonines has been linked to consumption of alewife Alosa pseudoharengus. Thiamine deficiency has been recognized as a possible impediment to lake trout Salvelinus namaycush recruitment in the Great Lakes and Atlantic salmon Salmo salar recruitment in the Finger Lakes and...

Ladago, Bret J.; Futia, Matthew H.; Ardren, William R.; Honeyfield, Dale C.; Kelsey, Kevin P.; Kozel, Carrie L.; Riley, Stephen; Rinchard, Jacques; Tillitt, Donald E.; Zajicek, James L.; Marsden, J. Ellen

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Year Published: 2020

Influence of soil microbiota on Taxodium distichum seedling performance during extreme flooding events

Plant associations with soil microbiota can modulate tree seedling growth and survival via mutualistic or antagonistic interactions. It is uncertain, however, whether soil microbiota influence seedling growth of coastal trees when exposed to extreme flooding regimes. We evaluated the role of soil microbes in promoting baldcypress (Taxodium...

Torres-Martínez, Lorena; Sánchez-Julia, Mareli; Kimbrough, Elizabeth; Hendrix, Trey; Hendrix, Miranda; Day, Richard H.; Krauss, Ken W.; Van Bael, Sunshine A

Filter Total Items: 255
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.

USGS
October 8, 2001

Scientists from the U.S. Geological Survey (USGS) in Madison, Wisc., confirmed today that five dead crows found in the St. Louis, Mo., area tested positive for the West Nile Virus. On Thursday, USGS biologists announced that a dead blue jay, found near El Dorado, Ark., also tested positive for the virus. 

USGS
September 5, 2001

Scientists from the U.S. Geological Survey (USGS) in Madison, Wisc., said today that two dead crows, found in the Chicago area tested positive for the West Nile Virus. Last week, dead crows found near Milwaukee also tested positive for the virus. So far this year, West Nile Virus has been identified in 20 states, the District of Columbia and in southern Ontario.

USGS
June 27, 2000

A minor earthquake, preliminary magnitude 3.9 according to the U.S. Geological Survey (USGS), occurred in the northern part of Arkansas at 9:29 p.m.