Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 238
Date published: February 26, 2019
Status: Completed

September 2016 Northern Plains Floods

Learn more about USGS flood activities related to the September 2016 Northern Plains Floods when more than 12 inches of rain fell in northeast Iowa, southeast Minnesota, and southwest Wisconsin during a 24-hour period on September 22 and 23, 2016.

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 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: 71
Date published: June 21, 2018

Louisiana Fact Sheets by Parish

Fact Sheets for Louisiana by Parish.

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

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: October 4, 2017

Operation Basement: Missouri Precambrian Sample Database

In 1968, the Missouri Geological Survey (MGS) established the Operation Basement program to address three objectives: a) to obtain drill hole and underground mining data relative to the structure and composition of the buried Precambrian basement; b) to expand mapping in the Precambrian outcrop area and conduct research related to Precambrian geology and mineral resources; and c%2

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: 4,441
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Year Published: 2021

Carrying capacity of spatially distributed metapopulations

Carrying capacity is a key concept in ecology. A body of theory, based on the logistic equation, has extended predictions of carrying capacity to spatially distributed, dispersing populations. However, this theory has only recently been tested empirically. The experimental results disagree with some theoretical predictions of when they are...

Zhang, Bo; DeAngelis, Don; Ni, Wei-Ming

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Year Published: 2021

Surface elevation change evaluation in mangrove forests using a low‐cost, rapid‐scan terrestrial laser scanner

Mangrove forests have adapted to sea level rise (SLR) increases by maintaining their forest floor elevation via belowground root growth and surface sediment deposits. Researchers use surface elevation tables (SETs) to monitor surface elevation change (SEC) in mangrove forests, after which this information is used to assess SLR resiliency or to...

Kargar, Ali Rouzbeh; MacKenzie, Richard A.; Fafard, Alexander; Krauss, Ken; van Aardt, Jan

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Year Published: 2021

Resolving species boundaries in the critically imperiled freshwater mussel species, Fusconaia mitchelli (Bivalvia: Unionidae)

Species are a fundamental unit of biology, and defining accurate species boundaries is integral to effective conservation and management of imperiled taxa. Freshwater mussels (Bivalvia: Unionidae) are among the most imperiled groups of organisms in North America, yet species boundaries remain uncertain for many taxa. The False Spike, ...

Smith, Chase H.; Johnson, Nathan; Havlik, Kaitlyn; Doyle, Robert D.; Randklev, Charles R.

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Year Published: 2021

Status of the major aquaculture carps of China in the Laurentian Great Lakes Basin

There is concern of economic and environmental damage occuring if any of the four major aquacultured carp species of China, black carp Mylopharyngodon piceus, bighead carp Hypophthalmichthys nobilis, silver carp H. molitrix, or grass carp Ctenopharyngodon idella, were to establish in the Laurentian Great Lakes. All four are...

Chapman, Duane C.; Benscoter, Allison; Embke, Holly S.; King, Nicole R.; Kocovsky, Patrick; Lewis, Teresa D.; Mandrak, Nicholas E.

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Year Published: 2021

Elemental and radionuclide exposures and uptakes by small rodents, invertebrates, and vegetation at active and post-production uranium mines in the Grand Canyon watershed

The effects of breccia pipe uranium mining in the Grand Canyon watershed (Arizona) on ecological and cultural resources are largely unknown. We characterized the exposure of biota to uranium and co-occurring ore body elements during active ore production and at a site where ore production had recently concluded. Our results indicate that biota...

Cleveland, Danielle; Hinck, Jo Ellen; Lankton, Julia S.

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Year Published: 2021

Movement of synthetic organic compounds in the food web after the introduction of invasive quagga mussels (Dreissena bugensis) in Lake Mead, Nevada and Arizona, USA

Introductions of dreissenid mussels in North America have been a significant concern over the last few decades. This study assessed the distribution of synthetic organic compounds (SOCs) in the food web of Lake Mead, Nevada/Arizona, USA and how this distribution was influenced by the introduction of invasive quagga mussels. A clear spatial...

Goodbred, Steven L.; Rosen, Michael R.; Patino, Reynaldo; Alvarez, David; Echols, Kathy R.; King, Kerensa; Umek, John

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Year Published: 2021

Scientific contributions of the Mangrove Macrobenthos and Management (MMM) conference series, 2000-2019

The conservation of mangrove forests has become an important international policy priority in recent decades, and is mirrored by a large increase in research interest. Multiple disciplines now use mangroves as a study system, from molecular biology to social science. The variety of research conducted in mangroves is exemplified by the Mangrove...

Friess, Daniel A.; Dahdouh-Guebas, Farid; Satyanarayana, Behara; Cannicci, Stefano; Vannini, Marco; Chua, Siew Chin; Duke, Norman; Feller, Ilka C.; Jaafer, Zeehan; Jayatissa, L.P.; Koedam, Nico; Krauss, Ken; Lee, Shing Yip; Mancera Pineda, Jose Ernesto; Ruwa, Renison; Yando, Erik S.

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Year Published: 2020

2020 drought in New England

Below average and infrequent rainfall from May through September 2020 led to an extreme hydrologic drought across much of New England, with some areas experiencing a flash drought, reflecting its quick onset. The U.S. Geological Survey (USGS) recorded record-low streamflow and groundwater levels throughout the region. In September, the U.S....

Lombard, Pamela J.; Barclay, Janet R.; McCarthy, Dee-Ann E.
Lombard, P.J., Barclay, J.R., and McCarthy, D.E., 2020, 2020 drought in New England (ver. 1.1, February 2021): U.S. Geological Survey Open-File Report 2020–1148, 12 p., https://doi.org/10.3133/ofr20201148.

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Year Published: 2020

Mapping Phragmites australis live fractional cover in the lower Mississippi River Delta, Louisiana

In response to a co-occurring non-native scale infestation and Phragmites australis dieback in southeast Louisiana, normalized difference vegetation index (NDVI) satellite mapping was implemented to track P. australis condition in the lower Mississippi River Delta. While the NDVI mapping successfully documented relative condition changes,...

Rangoonwala, Amina; Howard, Rebecca J.; Ramsey III, Elijah W.
Rangoonwala, A., Howard, R.J., and Ramsey, E.W., III, 2020, Mapping Phragmites australis live fractional cover in the lower Mississippi River Delta, Louisiana (ver. 1.1, January 2021): U.S. Geological Survey Open-File Report 2020–1131, 24 p., https://doi.org/10.3133/ofr20201131.

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Year Published: 2020

Procedures and best practices for trigonometric leveling in the U.S. Geological Survey

With the advent of highly precise total stations and modern surveying instrumentation, trigonometric leveling has become a compelling alternative to conventional leveling methods for establishing vertical-control networks and for perpetuating a datum to field sites. Previous studies of trigonometric-leveling measurement uncertainty proclaim that...

Noll, Michael L.; Rydlund, Jr., Paul H.
Noll, M.L., and Rydlund, P.H., 2020, Procedures and best practices for trigonometric leveling in the U.S. Geological Survey: U.S. Geological Survey Techniques and Methods, book 11, chap. D3, 94 p., https://doi.org/10.3133/tm11D3.

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Year Published: 2020

Water resources of Red River Parish, Louisiana

Information concerning the availability, use, and quality of water in Red River 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 5.76 million gallons per...

Robinson, Angela L.; White, Vincent E.
Robinson, A.L., and White, V.E., 2020, Water resources of Red River Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3053, 6 p., https://doi.org/10.3133/fs20203053.

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Year Published: 2020

Water resources of Bienville Parish, Louisiana

Information concerning the availability, use, and quality of water in Bienville 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 13.03 million gallons per...

Robinson, Angela L.; White, Vincent E.
Robinson, A.L., and White, V.E., 2020, Water resources of Bienville Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3052, 6 p., https://doi.org/10.3133/fs20203052.

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.

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

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.

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

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

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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.

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Image of a red dye study conducted in the Brandon Road Lock on the Des Plaines River near Joliet, Illinois, in 2015.
June 6, 2017

U.S. Geological Survey scientists will inject a harmless, bright red fluorescent dye into the auxiliary lock at Locks and Dam 14 on the Mississippi River near Pleasant Valley, Iowa, Tuesday, June 13, 2017, weather permitting. If needed, a backup date is scheduled for June 27, 2017.  

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.

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