Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 239
Date published: February 26, 2019
Status: Completed

August 2016 Louisiana Floods

Learn more about USGS flood activities related to the August 2016 Louisana Floods.

Date published: February 26, 2019
Status: Completed

2016 Southern Spring Floods

Learn more about USGS flood activities related to the 2016 Southern Spring Floods. These floods were caused by significant amounts of tropical moisture that was funneled through a narrow zone across East Texas, Louisiana, Arkansas, and Mississippi, creating severe flood conditions.

Date published: February 26, 2019
Status: Archived

Continuous Water-Quality Monitoring During December 2015-January 2016 Flood Events

During the late December 2015-early January 2016 storm event, two sewage-treatment plants and a drinking-water plant in Missouri were inundated by water and failed, contributing untreated sewage to the floodwaters. The USGS collected water-quality samplesat key locations in the Mississippi and Missouri River Basins and continued to sample the flood surge as it moved down the Mississippi River...

Date published: February 25, 2019
Status: Completed

June 2014 floods in South Dakota, Minnesota, and Iowa

Learn more about USGS flood activities related to the June 2014 Floods in South Dakota, Minnesota, and Iowa.

Date published: February 25, 2019
Status: Completed

May-June 2013 Midwest Floods

Learn more about USGS flood activities related to the May-June 2013 Midwest Floods.

Date published: February 25, 2019
Status: Completed

April-May 2013 Midwest Floods

Learn more about USGS flood activities related to the April-May 2013 Midwest Floods caused by heavy rainfall and late snow-melt in six states.

Date published: February 25, 2019
Status: Completed

Summer 2011 Missouri River Basin flood

Learn more about USGS flood activities related to the 2011 Missouri River Basin Flood resulting from higher-than-average snowmelt runoff combined with heavy spring rains.

Date published: February 25, 2019
Status: Completed

Spring/Summer 2011 Mississippi River Basin Floods

Learn more about USGS flood activities related to the Spring/Summer 2011 floods throughout the Mississippi River Basin.

Date published: February 25, 2019
Status: Completed

May 2011 Louisiana flood

Learn more about USGS flood activities related to the May 2011 flood in Louisiana, including additional real-time monitoring for the Morganza and Bonnet Carre Spillways which were opened to release floodwaters into the Mississippi River.

Date published: February 25, 2019
Status: Completed

April 2011 Arkansas Flood

Learn more about USGS flood activities related to the April 2011 Arkansas Flood.

Date published: February 24, 2019
Status: Active

Urban Waters Federal Partnership—Middle Blue River Basin (Kansas City, Mo.)

Reconnecting people and water is an increasingly important goal in many urban areas. Parks, urban trails, boat ramps, and urban agriculture all are ways that an urban population can interact with nature and improve quality of life.  USGS is participating in gathering the information that will make these projects possible.

Date published: January 29, 2019
Status: Completed

Hurricane Katrina - Documentation of Coastal Change

Aerial video, still photography, and laser altimetry surveys show the nature, magnitude, and spatial variability of coastal changes such as beach erosion, overwash deposition, and island breaching.

Filter Total Items: 72
Date published: February 14, 2018

Key Findings for Scenario-Based Assessment for Hurricanes

Percentage of sandy beaches very likely (probability > 0.9) to experience erosion associated with collision, overwash, and inundation during category 1-5 hurricane landfall.

Date published: January 19, 2018

Oblique Aerial Photography Viewer

Obique photos offer a unique perspective of the coast. Features such as beach erosion or accretion, dune erosion and overwash can all be clearly characterized in this imagery. It also documents coastal infrastructure, as well as the damage that infrastructure may incur as the result of an impacting hurricane. 

Date published: January 1, 2018

Nitrapyrin, 6-CPA, and herbicide concentrations in agricultural soils, subsurface drains, and corresponding streams in the Midwestern US

Nitrapyrin is a nitrification inhibitor that is co-applied with N-fertilizer in agroecosystems. Over the course of one year (March 2016 to June 2017), 192 water samples from seven streams across Iowa and Illinois were analyzed for nitrapyrin, its degradate 6-chloropicolinic acid (6-CPA), and three widely used herbicides acetochlor, atrazine, and metolachlor. Additional environme

Date published: January 1, 2018

Airborne electromagnetic and magnetic survey data and inverted resistivity models, Cedar Rapids, Iowa, May 2017

Airborne electromagnetic (AEM) and magnetic survey data were collected by CGG Canada Services Ltd. in collaboration with the US Geological Survey (USGS) for the City of Cedar Rapids in a 53-square-kilometer area of the Cedar River Basin to the west of Cedar Rapids, Iowa. The survey was flown between May 4 and May 5, 2017 along 347 line kilometers. Electromagnetic data were acquired us

Date published: January 1, 2018

Concentrations of Major and Trace Elements in Streambed and Floodplain Sediment along the Middle Big River and Tributaries in the Southeast Missouri Barite District and in Quality-Assurance Samples, 2012-15

This U.S. Geological Survey (USGS) Data Release contains locations and concentrations of metals in various size fractions in floodplain-core, streambed-sediment samples, and sediment deposited on the flood plain from the December 2015 flood and underlying soils collected from along the Middle Big River and tributaries in the Southeast Missouri Barite District from 2012 to 2015. All sample

Date published: December 11, 2017

Gulf of Mexico Dashboard

The USGS Southeast Regional Office has funded a cross-center collaboration between the Wetland and Aquatic Research Center and the Texas Water Science Center for the development of the Gulf of Mexico Water Dashboard. 

Date published: October 31, 2017

Guide to the Plants of Louisiana

This guide to the vascular plants of Louisiana includes a database of plant characters, a search engine and plant images. Photographs include images of leaves, fruit, flower, stem, bark and other key identification features. Information about plants can be accessed by searching plant lists either by scientific name or common name.

Date published: October 31, 2017

Current Conditions for Arkansas - Streamflow

To view current streamflow conditions for Arkansas click here

Date published: October 31, 2017

Current Conditions for Arkansas: Water Quality

To view current conditions for Arkansas Water Quality click here.

Date published: October 31, 2017

Arkansas Groundwater-Quality Network

To see information on the Arkansas Groundwater-Quality Network click here.

Date published: September 1, 2017

National Water Information System web interface (NWISweb)

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.

Filter Total Items: 4,275
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Year Published: 2020

Combining physical and species‐based approaches improves refugia identification

Climate‐change refugia – locations likely to facilitate species persistence under climate change – are increasingly important components of conservation planning. Recent approaches for identifying refugia at broad scales include identifying regions that are projected to experience less severe changes (climatic exposure), that contain a diversity...

Michalak, Julia; Stralberg, Diana; Cartwright, Jennifer M.; Lawler, Joshua J.

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Year Published: 2020

Disturbance refugia within mosaics of forest fire, drought, and insect outbreaks

Disturbance refugia – locations that experience less severe or frequent disturbances than the surrounding landscape – provide a framework to highlight not only where and why these biological legacies persist as adjacent areas change but also the value of those legacies in sustaining biodiversity. Recent studies of disturbance refugia in forest...

Krawchuk, Meg A.; Meigs, Garrett; Cartwright, Jennifer M.; Coop, Jonathan D.; Davis, Raymond J.; Holz, Andres; Kolden, Crystal A.; Meddens, Arjan J.H.

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Year Published: 2020

Methods of collection and quality assessment of arsenic data in well-water supplies in Maine, 2001–2 and 2006–7

The U.S. Geological Survey, in cooperation with the U.S. Centers for Disease Control and Prevention and the Maine Center for Disease Control and Prevention, assessed the chemical characteristics and the occurrence, distribution, and oxidation state of inorganic arsenic in drinking water from selected domestic well-water supplies in Maine in 2001–2...

Culbertson, Charles W.; Caldwell, James M.; Schalk, Luther F.; Manassaram, Deana; Backer, Lorraine C.; Smith, Andrew E.
Culbertson, C.W., Caldwell, J.M., Schalk, L.F., Manassaram, D., Backer, L.C., and Smith, A.E., 2020, Methods of collection and quality assessment of arsenic data in well-water supplies in Maine, 2001–2 and 2006–7: U.S. Geological Survey Data Series 1125, 11 p., https://doi.org/10.3133/ds1125.

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Year Published: 2020

A tropical cyclone-induced ecological regime shift: Mangrove forest conversion to mudflat in Everglades National Park (Florida, USA)

The ecological effects of tropical cyclones on mangrove forests are diverse and highly location- and cyclone-dependent. Ecological resistance, resilience, and enhancement are terms that describe most mangrove forest responses to tropical cyclones. However, in the most extreme cases, tropical cyclones can trigger abrupt and irreversible ecological...

Osland, Michael; Feher, Laura; Anderson, Gordon; Vervaeke, William; Krauss, Ken; Whelan, Kevin R.T.; Balentine, Karen S.; Tiling-Range, G.; Smith, Thomas J.; Cahoon, Donald

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Year Published: 2020

Developmental ecomorphology of the epibranchial organ of the silver carp, Hypophthalmichthys molitrix

Silver carp regularly consume and digest particles of food as small as 5 m. This ability drives their efficient consumption of phytoplankton and because they feed low on the food chain they have an important place in aquaculture worldwide. In North America, where they are considered invasive, silver carp deplete food resources for native species...

Cohen, Karly E.; George, Amy E.; Chapman, Duane C.; Chick, John H.; Hernandez, L. Patricia

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Year Published: 2020

Estimating the effect of winter cover crops on nitrogen leaching using cost-share enrollment data, satellite remote sensing, and Soil and Water Assessment Tool (SWAT) modeling

This study employed a novel combination of data (winter cover crop cost-share enrollment records, satellite remote sensing of wintertime vegetation, and results of Soil and Water Assessment Tool (SWAT) water quality simulations) to estimate the environmental performance of winter cover crops (WCC) at the watershed scale, from 2008 through 2017,...

Hively, W. Dean; Lee, Sangchul; Sadeghi, Ali M.; McCarty, Gregory W.; Lamb, Brian T.; Soroka, Alexander M.; Keppler, Jason; Yeo, In-Young; Moglen, Glenn E.

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Year Published: 2020

Joint seasonality in geographic and ecological spaces, illustrated with a partially migratory bird

As most species live in seasonal environments, considering varying conditions is essential to understand species dynamics in both geographic and ecological spaces. Both resident and migratory species need to contend with seasonality and balance settling in favorable areas with tracking favorable environmental conditions during the year. We present...

Basille, Mathieu; Watling, James I.; Romanach, Stephanie; Borkhataria, Rena R.

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Year Published: 2020

Louisiana Barrier Island Comprehensive Monitoring Program: Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16

Barrier islands, headlands, and coastal shorelines provide numerous valuable ecosystem goods and services, including storm protection and erosion control for the mainland, habitat for fish and wildlife, salinity regulation in estuaries, carbon sequestration in marshes, and areas for recreation and tourism. These coastal features are dynamic...

Enwright, Nicholas M.; SooHoo, William M.; Dugas, Jason L.; Conzelmann, Craig P.; Laurenzano, Claudia; Lee, Darin M.; Mouton, Kelly; Stelly, Spencer J.
Enwright, N.M., SooHoo, W.M., Dugas, J.L., Conzelmann, C.P., Laurenzano, C., Lee, D.M., Mouton, K., and Stelly, S.J., 2020, Louisiana Barrier Island Comprehensive Monitoring Program—Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16: U.S. Geological Survey Open-File Report 2020–1030, 57 p., https://doi.org/10.3133/ofr20201030.

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Year Published: 2020

Evaluating the potential role of bioactive chemicals on the distribution of invasive Asian carp upstream and downstream from river mile 278 in the Illinois waterway

Two non-native carp species have invaded the Illinois Waterway and are a threat to Great Lakes ecosystems. Poor water quality in the upper Illinois Waterway, may be a factor contributing to the stalling of the carp population front near river mile 278. In 2015, the U.S. Geological Survey collected 4 sets of water samples from two sites upstream...

Battaglin, William A.; Duncker, James J.; Terrio, Paul J.; Bradley, Paul; Barber, Larry; DeCicco, Laura A.

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Year Published: 2020

A multi-model approach toward understanding iron fouling at rock-fill drainage sites along roadways in New Hampshire, USA

Factors affecting iron fouling in wet areas adjacent to roadways were investigated by collecting field rock cut and aqueous physicochemical data; developing exploratory predictive models; and developing geochemical models. Basic data included the identification of iron fouling from aerial imagery and field visits at 374 New Hampshire rock cut...

Lombard, Melissa; Lombard, Pamela J.; Brown, Craig J.; Degnan, James

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Year Published: 2020

Fluoride occurrence in United States groundwater

Data from 38,105 wells were used to characterize fluoride (F) occurrence in untreated United States (U.S.) groundwater. For domestic wells (n = 11,032), water from which is generally not purposely fluoridated or monitored for quality, 10.9% of the samples have F concentrations >0.7 mg/L (U.S. Public Health Service recommended optimal F...

McMahon, Peter B.; Brown, Craig J.; Johnson, Tyler D.; Belitz, Kenneth; Lindsey, Bruce D.

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Year Published: 2020

Species richness responses to water withdrawal scenarios and minimum flow levels: Evaluating presumptive standards in the Tennessee and Cumberland River basins

Water resource managers are challenged to balance growing water demand with protecting aquatic ecosystems and biodiversity. Management decisions can benefit from improved understanding of water withdrawal impacts on hydrologic regimes and ecological assemblages. This study used Ecological Limit Functions for fish groups within the Tennessee and...

Driver, Lucas; Cartwright, Jennifer M.; Knight, Rodney; Wolfe, William J.

Filter Total Items: 217
Swimming paths of control (left) and copper (right) exposed fish demonstrate changes in swimming behavior
April 16, 2018

Swimming paths of control (left) and copper (right) exposed fish

Behavioral Toxicology Laboratory — Columbia, Missouri. Swimming paths of control (left) and copper (right) exposed fish demonstrate changes in swimming behavior detected following exposure to metals. Such changes can impact ability of fish to survive.

Molecular Devices ImageXpress† High-Content Imaging System
April 13, 2018

Molecular Devices ImageXpress† High-Content Imaging System

High-Content Screening Laboratory — Columbia, Missouri. Molecular Devices ImageXpress High-Content Imaging System

The zebrafish developmental cardiovascular toxicity high-content screening assay uses a 384-well plate format
April 13, 2018

TZebrafish developmental cardiovascular toxicity high-content screen

The zebrafish developmental cardiovascular toxicity high-content screening assay uses a 384-well plate format to maximize number of treatments and replicates possible on each plate.

Ozark Spring - a perennial spring in Phelps County, MO
February 25, 2018

Ozark Spring - a perennial spring in Phelps County, Missouri

Ozark Spring is a perennial spring in northern Phelps County, Missouri. It generates a rill that flows into Spring Creek which flows into the Gasconade River. It provides year-round water to livestock in the area.

Asian carp removal in Missouri
February 23, 2018

Asian Carp Removal in Missouri

In 2018, USGS and partners completed an incredible feat against a harmful aquatic invasive species when over 240,000 pounds of invasive Silver Carp and Bighead Carp were removed from Creve Coeur Lake in Maryland Heights, Missouri.

Samplers used for sampling hydrophilic organic chemicals from water
December 31, 2017

Samplers used for sampling hydrophilic organic chemicals from water

Passive Sampling Research—Columbia, Missouri. The polar organic chemical integrative sampler (POCIS - on the left) and semipermeable membrane devices (SPMDs - on the right) samplers are used for sampling hydrophilic organic chemicals from water. The SPMDs sampler can also be deployed for air sampling.

Graph of the rate of change in Lousiana coastal wetlands from the 1930s to the present
December 31, 2017

Louisiana coastal wetland change rates over time

Graph of land area change rate in coastal Louisiana from 1932–2016.  The red line approximates the long-term land area change rate. 95 out of 100 statistical analyses would produce a very similar trend (dotted blue lines). Credit: USGS

A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f
December 31, 2017

Petis Bois model

A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor features and the subsurface. The barrier islands rest on the island plaftorm. Petis Bois Pass and offshore shoals are clearly visible from the acoustic surveys. The bathymetry, sidescan sonar, and sediment cores provide information about the extent

...
December 31, 2017

Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010

Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010” is a short video showing modeled groundwater withdrawal rates from the Ozark Plateaus aquifer system (Ozark system) in the central United States. The Ozark Plateaus Groundwater Availability Study aims to quantify current groundwater resources in the Ozark system, evaluate how these resources have changed

Cedar Rapids
December 31, 2017

Greg Delzer Talking with the Local Press Regarding the AEM Flight Plan

USGS Scientist, Greg Delzer, talking with the local press regarding the AEM flight plan and details on what USGS and others will be collecting and analyzing.

Cedar Rapids
December 31, 2017

RESOLVE bird used to collect airborne electromagnetic data

USGS team of scientists were on site before the survey to help answer questions and go over last minute flight and data collection details. (Photo includes individuals from USGS: Iowa/Illinois Water Science Center, Dakota Water Science Center, Denver Crustal Geophysics Group, Office of Communication, and Branch of Geophysics)

Cedar Rapids
December 31, 2017

Pilot and Crew Discussing Flight Plan for collecting AEM Data

Helicopter pilot and crew discussing flight plan and data collection before lifting off.

Filter Total Items: 244
Two men collecting groundwater samples at a public well in the middle of a grassy field in Texas
May 31, 2017

Decades or longer may be needed to fully assess the effects of unconventional oil and gas production on the quality of groundwater used for drinking water in Arkansas, Louisiana, and Texas

Measuring Streamflow
May 11, 2017

Gary Moore spent the last three days of 2015 stacking hefty bags of sand in front of a fellow church member’s brick home. With only 1,000 feet between the house and the swelling Mississippi and Meramec Rivers, Moore and other volunteers worked quickly, in frigid temperatures, to assemble a 10-foot high, 1,000-foot-long sandbag wall to ward off floodwaters.

USGS hydrologic technician Christopher Rowden verifies the accuracy of streamgage information at the Jacks Fork River.
April 30, 2017

Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista.

Low-flying helicopter survey
April 27, 2017

Starting on May 2 and lasting for about two days, a helicopter towing a large, cylindrical sensor will make low-level flights over parts of Cedar Rapids as part of a groundwater 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 Coastal Lowlands aquifer system in the southeastern United States 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 Southeastern Coastal Plain aquifer system is now available from the U.S. Geological Survey.

This picture was taken June 23, 2010 along the Louisiana shoreline in Barataria Bay and shows oil spilled from Deepwater Horizon
November 17, 2016

A new USGS-NASA study found widespread shoreline loss along heavily oiled areas of Louisiana's coast after the 2010 BP Deepwater Horizon oil spill and compared the erosion from the spill with coastal changes Hurricane Isaac caused in 2012.

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