Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 238
Date published: July 5, 2017

Sparta Aquifer Recovery Project

The Sparta aquifer is Union County's only source of municipal and industrial ground water. Since development began in the early 1920's ground-water levels have declined more than 390 feet in some areas. As a result, Union was among five southern Arkansas counties designated as the state's first "Critical Ground Water Area" in 1996.

Partners include:...

Date published: July 5, 2017

Decision Support System for Sustainable and Adaptive Management of Beaver Lake - Arkansas

Short Title: Beaver Lake 3-D Modelin

Project Chief: Reed Green

Cooperator: Beaver Water District

Project Time Frame: October 2007 - present

Beaver Lake is a large, deep-storage reservoir located in the White River Basin in northwestern Arkansas and is...

Contacts: William R Green
Date published: July 5, 2017

Beaver Lake Water Quantity and Quality - Arkansas

Short Title: Beaver Lake Water Quality

Project Chief: Reed Green

Cooperator: Beaver Water District

Project Time Frame: 2000 - present

Beaver Lake, completed in 1963, is located in northwestern Arkansas and receives a majority of its water from three...

Date published: July 5, 2017
Status: Active

Ground-Water Data Network - Arkansas

Short Title: Ground-Water Data Network

Project Chief: Anna Nottmeier

Cooperators: Arkansas Department of Agriculture-Natural Resources DivisionArkansas Geological...

Date published: July 5, 2017

Hydrologic Monitoring for the City of Hot Springs Early Flood Warning Information System - Arkansas

Short Title: Hot Springs Flood Warning System

Project Chief: Joseph Fleming

Cooperator: City of Hot Springs

Project Time Frame: 2008- present

In May 1990, a series of severe thunderstorms developed in the vicinity of Hot Springs with a total...

Date published: July 3, 2017

Lakes Maumelle and Winona - Arkansas

Short Title: Lakes Maumelle and Winona

Project Chief: William Green

Cooperator: Central Arkansas Water

Project Time Frame: 1989 - present

Lakes Maumelle and Winona are water-supply reservoirs for the Little Rock and North Little Rock metropolitan areas...

Contacts: William R Green
Date published: July 3, 2017

Middle Fork of the Saline River - Arkansas

Short Title: Middle Fork Study

Project Chief: William Baldwin

Cooperators: Hot Springs Village Property Owners Association, Arkansas Department of Environmental Quality, Arkansas Game and Fish Commission,Arkansas Naural Resources Commission, U.S. Bureau of Land Management, and U.S. Fish and Wildlife Service...

Date published: July 3, 2017

Ground-Water Modeling Support - Arkansas

 

Short Title: North Ground-Water Model

Project Chief: Phillip Hays

Cooperators: Arkansas Natural Resources Commission

Project Time Frame: 2005 - present

Several counties in eastern and southern Arkansas have been designated Critical Ground-Water Areas (areas where alluvial aquifer...

Contacts: Phillip D Hays
Date published: June 30, 2017

Ozark Plateaus National Water-Quality Assessment (NAWQA) Program

Short Title: Ozark Plateaus NAWQA

Project Chief: Billy Justus

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

Project Time Frame: 1991 - present

The Ozark Plateaus study unit is one of more than 50 study units that are part...

Contacts: Billy G Justus
Date published: June 30, 2017

Sediment Data Program

Short Title: Sediment Data Program

Project Chief: Dwight Lasker

Cooperator: U.S. Army Corps of Engineers - Memphis District

Project Time Frame: 1997 - present

Sediment concentrations and discharges in rivers and streams must be defined and monitored for effective water resource planning and water-...

Contacts: Alan D Lasker
Date published: June 30, 2017

Sparta Aquifer Recovery Project

Short Title: Sparta Recovery Project

Project Chief: Anna Nottmeier

Cooperators: Union County Water Conservation Board

Project Time Frame: 2002 - present

The Sparta aquifer is a confined aquifer of great regional importance and is a major water resource for municipal, industrial,...

Date published: June 30, 2017

Surface-Water Data Program - Arkansas

 

Short Title: Surface-Water Data Program

Project Chief: William Baldwin

Cooperators: U.S. Army Corps of Engineers - Little Rock District, U.S. Army Corps of Engineers - Memphis District, U.S. Army Corps of Engineers - Vicksburg District, Arkansas Natural Resources Commission, Arkansas Geological...

Filter Total Items: 4,411
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Year Published: 2020

Investigating the gene expression profiles of rehabilitated Florida manatees (Trichechus manatus latirostris) following red tide exposure

To investigate a Florida manatee (Trichechus manatus latirostris) mortality event following a red tide bloom in Southwest Florida, an RNA sequencing experiment was conducted. Gene expression changes in white blood cells were assessed in manatees rescued from a red tide affected area (n = 4) and a control group (n = 7) using RNA sequencing. The...

Lazensky, Rebecca; Hunter, Margaret; Amador, David M.; Al-Khedery, Basima; Yu, Fahong; Walsh, Cathy; Gitzendanner, Matthew A.; Tripp, Katie; Walsh, Mike; Denslow, Nancy D.

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Year Published: 2020

Mortality and cholinesterase inhibition in butterflies following aerial naled applications for mosquito control on the National Key Deer Refuge

Natural resource managers are concerned about the impacts of aerial ultra-low volume spray (ULV) of insecticides for mosquito control (i.e., mosquito adulticides) and seek science-driven management recommendations that reduce risk but allow vector control for nearby human populations. Managers at the National Key Deer Refuge (Florida Keys, FL) are...

Bargar, Timothy; Anderson, Chad; Sowers, Anthony

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Year Published: 2020

Frequency of extreme freeze events controls the distribution and structure of black mangroves (Avicennia germinans) near their northern range limit in coastal Louisiana

AimClimate change is expected to result in the tropicalization of coastal wetlands in the northern Gulf of Mexico, as warming winters allow tropical mangrove forests to expand their distribution poleward at the expense of temperate salt marshes. Data limitations near mangrove range limits have hindered understanding of the effects of winter...

Osland, Michael; Day, Richard; Michot, Thomas C.

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Year Published: 2020

Near-term spatial hydrologic forecasting in Everglades, USA for landscape planning and ecological forecasting

Operational ecological forecasting is an emerging field that leverages ecological models in a new, cross-disciplinary way – using a real-time or nearly real-time climate forecast to project near-term ecosystem states. These applications give decision-makers lead time to anticipate and manage state changes that degrade ecosystem functions or...

Pearlstine, Leonard G.; Beerens, James M.; Reynolds, Gregg; Haider, Saira; McKelvy, James M.; Suir, Kevin; Romanach, Stephanie; Nestler, Jennifer H.

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Year Published: 2020

Reduction in drinking water arsenic exposure and health risk through arsenic treatment among private well households in Maine and New Jersey, USA

Over 2 million people in the United States (U.S.) drink water from private wells that contain arsenic (As) exceeding the U.S. Environmental Protection Agency (USEPA) Maximum Contaminant Level (MCL) of 10 micrograms per liter (μg/L). While there are a number of commercially available treatment technologies for removing As from drinking water, it is...

Yang, Qiang; Flanagan, Sara V.; Chillrud, Steven; Ross, James; Zeng, Wenke; Culbertson, Charles W.; Spayd, Steve; Backer, Lorraine C.; Smith, Andrew E.; Zheng, Yan

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Year Published: 2020

Small gradients in salinity have large effects on stand water use in freshwater wetland forests

Salinity intrusion is responsible for changes to freshwater wetland watersheds globally, but little is known about how wetland water budgets might be influenced by small increments in salinity. We studied a forested wetland in South Carolina, USA, and installed sap flow probes on 72 trees/shrubs along a salinity gradient. Species investigated...

Duberstein, Jamie A.; Krauss, Ken; Baldwin, M.J.; Allen, Scott T.; Conner, William H.; Salter, John S.; Miloshis, Michael

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Year Published: 2020

Transcriptome analysis of testis reveals the effects of developmental exposure to bisphenol a or 17α-ethinylestradiol in medaka (Oryzias latipes)

Endocrine disrupting chemicals (EDCs) can induce abnormalities in organisms via alteration of molecular pathways and subsequent disruption of endocrine functions. Bisphenol A (BPA) and 17α-ethinylestradiol (EE2) are ubiquitous EDCs in the environment. Many aquatic organisms, including fish, are often exposed to varying concentrations of BPA and...

Bhandari, Ramji K.; Wang, Xuegeng; vom Saal, Frederick S.; Tillitt, Donald E.

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Year Published: 2020

Divergent biotic and abiotic filtering of root endosphere and rhizosphere soil fungal communities along ecological gradients

Plant roots assemble two distinct microbial compartments: the rhizosphere (microbes in soil surrounding roots) and the endosphere (microbes within roots). Our knowledge of fungal community assembly in these compartments is limited, especially in wetlands. We tested the hypothesis that biotic factors would have direct effects on rhizosphere and...

Lumibao, Candice Y; Kimbrough, Elizabeth; Day, Richard; Conner, William H.; Krauss, Ken; Van Bael, Sunshine A

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Year Published: 2020

Hurricane Sandy effects on coastal marsh elevation change

High-magnitude storm events such as Hurricane Sandy are powerful agents of geomorphic change in coastal marshes, potentially altering their surface elevation trajectories. But how do a storm’s impacts vary across a large region spanning a variety of wetland settings and storm exposures and intensities. We determined the short-term impacts of...

Yeates, Alice G.; Grace, James; Olker, Jennifer H.; Guntenspergen, Glenn R.; Cahoon, Donald; Adamowicz, Susan C.; Anisfeld, Shimon C.; Barrett, Nels; Benzecry, Alice; Blum, Linda K.; Christian, Rober T; Grzyb, Joseph; Kracauer Hartig, Ellen; Hines Leo, Kelly; Lerberg, Scott; Lynch, James C.; Maher, Nicole; Megonigal, J Patrick; Reay, William G.; Siok, Drexel; Starke, Adam; Turner, Vincent; Warren, Scott

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Year Published: 2020

Structural impacts, carbon losses, and regeneration in mangrove wetlands after two hurricanes on St. John, U.S. Virgin Islands

Hurricanes Irma and Maria ravaged the mangroves of St. John, U.S. Virgin Islands, in 2017. Basal area losses were large (63–100%) and storm losses of carbon associated with aboveground biomass amounted to 11.9–43.5 Mg C/ha. Carbon biomass of dead standing trees increased 8.1–18.3 Mg C/ha among sites, and carbon in coarse woody debris on the forest...

Krauss, Ken; From, Andrew; Rogers, Caroline; Whelan, Kevin R.T.; Grimes, Kristen W.; Dobbs, Robert C.; Kelley, Thomas

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Year Published: 2020

Comparing trends in modeled and observed streamflows at minimally altered basins in the United States

We compared modeled and observed streamflow trends from 1984–2016 using five statistical transfer models and one deterministic, distributed-parameter, process-based model, for 26 flow metrics at 502 basins in the United States that are minimally influenced by development. We also looked at a measure of overall model fit and average bias. A higher...

Hodgkins, Glenn A.; Dudley, Robert; Russell, Amy M.; LaFontaine, Jacob H.

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Year Published: 2020

Updating data inputs, assessing trends, and evaluating a method to estimate probable high groundwater levels in selected areas of Massachusetts

A method to estimate the probable high groundwater level in Massachusetts, excluding Cape Cod and the islands, was developed in 1981. The method uses a groundwater measurement from a test site, groundwater measurements from an index well, and a distribution of high groundwater levels from wells in similar geologic and topographic settings. The U.S...

Barclay, Janet R.; Mullaney, John R.
Barclay, J.R., and Mullaney, J.R., 2020, Updating data inputs, assessing trends, and evaluating a method to estimate probable high groundwater levels in selected areas of Massachusetts: U.S. Geological Survey Scientific Investigations Report 2020–5036, 45 p., https://doi.org/10.3133/sir20205036.

Filter Total Items: 217
WRP St. Landry Parish, Louisiana
April 26, 2016

WRP St. Landry Parish, Louisiana

Wetlands Reserve Program site in St. Landry Parish, Louisiana.  Changes in a local river resulted in the landowner’s fields flooding on a regular basis. The landowner worked through the USDA Natural Resources Conservation Service to restore his fields to their natural wetland state.

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

DEM in the Atchafalaya Basin, LA

Digital Elevation Model in the Atchafalaya Basin, LA

Image: Southeast Missouri Helicopter Survey
March 14, 2016

Southeast Missouri Helicopter Survey

Residents and visitors should not be alarmed to witness a low-flying helicopter over southeastern Missouri starting in mid to late February, 2014.

U.S. Geological Survey scientists will conduct a comprehensive, high-resolution airborne survey to study the rock layers under parts of Washington, Franklin and Crawford counties. Instruments on the helicopter will

...
Image: WRP Natchitoches Parish, Louisiana
March 14, 2016

WRP Natchitoches Parish, Louisiana

Wetlands Reserve Program site in Natchitoches Parish, Louisiana.  Ten years ago, this landowner worked with the USDA Natural Resources Conservation Service through the Wetlands Reserve Program to design and construct this slough as part of a plan to restore this field’s natural wetland hydrology.

Image: Night Flooding in Natchez
January 12, 2016

Night Flooding in Natchez

Image shows a night-time view of the Natchez-Vidalia Bridge at Natchez, Mississippi.

In late 2015/early 2016 unusually large rainfall in the Upper Mississippi River Valley led to significant flooding in Arkansas, Illinois, Louisiana, Mississippi, Missouri, and Tennessee. USGS crews responded to the flooding by collecting streamflow and water quality information and

...
Image: USGS Streamgage at Baton Rouge
January 8, 2016

USGS Streamgage at Baton Rouge

The USGS Streamgage at Baton Rouge, Louisiana, during the 2015/2016 Mississippi River Valley Flooding.

In late 2015/early 2016, unusually large rainfall in the Upper Mississippi River Valley led to flooding throughout Arkansas, Illinois, Louisiana, Mississippi, Missouri, and Tennessee. USGS water science centers responded to the flooding by measuring the streamflow

...
Image shows sand in a hand
December 31, 2015

Frac Sands in Hand

Frac sands used in unconventional oil and gas development.

Strong River at D'Lo Mississippi
December 31, 2015

Strong River at D'Lo Mississippi

This image was taken at the Strong River at D'Lo, Mississippi by Shane Stocks who is a Hydrologic Technician out of the Jackson, MS office. Shane used an infared camera to take this long exposure shot of the river. 

Photo of Flooding on Mississippi River in December 2015
December 31, 2015

Flooding on Mississippi River in December 2015

USGS crews had two research vessels out measuring streamflow on the Mississippi River at St. Louis on New Years Eve, 2015. 

Photo of Flooding on Mississippi River in December 2015
December 31, 2015

Flooding on Mississippi River in December 2015

USGS scientist Chris Rowden drives a research vessel measuring streamflow alongside another field crew on the Mississippi River at St. Louis.

Photo of Flooding on Mississippi River in December 2015
December 31, 2015

Flooding on Mississippi River in December 2015

USGS crews had two research vessels out measuring streamflow on the Mississippi River at St. Louis on New Years Eve, 2015. USGS scientists Eric Looper and Jason Carron are one of many USGS field crews out in the floodwaters over the holiday.

Photo of Flooding on Mississippi River in December 2015
December 31, 2015

Flooding on Mississippi River in December 2015

USGS scientists Chris Rowden, Larry Buschmann and Bob Holmes were on the Mississippi River at St. Louis taking streamflow measurements on New Years Eve, 2015. This information is critical to the National Weather Service, the U.S. Army Corps of Engineers and emergency managers in making flood predictions and response.

Filter Total Items: 248
USGS
July 28, 2014

Streamflow in the eastern portions of the Missouri River watershed has increased over the past 52 years, whereas other parts have seen downward trends. 

USGS
June 25, 2014

On the one-year anniversary of President Obama’s Climate Action Plan, Secretary of the Interior Sally Jewell today released a new report showing that forests, wetlands and farms in the eastern United States naturally store 300 million tons of carbon a year (1,100 million tons of CO2 equivalent).

USGS science for a changing world logo
June 19, 2014

U.S. Geological Survey field crews are measuring flooding on the Big Sioux River and its tributaries in South Dakota.

USGS
May 22, 2014

Scientists have extracted DNA from fish eggs found in northern sections of the Upper Mississippi River and have determined that the eggs and larvae are not from Asian carp.

Lidar image showing the upper parts of the landslide that occurred in northwest Washington on March 22, 2014.
May 14, 2014

Want to know how elevation will benefit your state? The USGS National Geospatial Program is advancing the 3D Elevation Program, known as 3DEP, in response to the growing need for high-quality three-dimensional representations of the Nation’s natural and constructed features.

Map of the Illinois River in northwest Arkansas shows the 18 sites at which this study was conducted.
March 12, 2014

The biology of small streams in the Illinois River Basin has been disturbed by a mix of factors, according to a new U.S. Geological Survey report.

USGS science for a changing world logo
February 6, 2014

A newly developed computer model holds the promise of helping scientists track and predict where oil will go after a spill, sometimes years later.

Image: Southeast Missouri Helicopter Survey
February 5, 2014

U.S. Geological Survey scientists will conduct a comprehensive, high-resolution airborne survey to study the rock layers under parts of Washington, Franklin and Crawford counties. Instruments on the helicopter will collect information about the underground geology and mineral deposits of the region.

Map showing recent earthquakes in the New Madrid Seismic Zone
January 23, 2014

Earthquake activity in the New Madrid Seismic Zone in the central United States does not seem to be slowing down.  In a new study published in the journal "Science," seismologists Morgan Page and Susan Hough of the U.S. Geological Survey investigate whether current quakes in the region could be aftershocks of large earthquakes that occurred 200 years earlier.

USGS
December 19, 2013

Secretary of the Interior Sally Jewell announced today that Interior's North Central Climate Science Center is awarding slightly more than one million dollars to universities 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.

USGS
November 14, 2013

New hydrological details of the 2010 flood that killed 20 people in and near the Albert Pike Recreation Area were released today in two U.S. Geological Survey reports.