Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 239
Date published: January 28, 2019
Status: Completed

Hurricane Katrina - Before and After Photo Comparisons

Before and after photos from the Chandeleur Islands, Dauphin Island, and Mississippi show coastal change caused by Hurricane Katrina.

Date published: December 7, 2018
Status: Active

Arkoma Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Arkoma Basin Province 5062:

Date published: December 7, 2018
Status: Active

Ozark Uplift Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Ozark Uplift Province (5057):

 

Date published: December 7, 2018
Status: Archived

Forest City Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Forest City Basin Province (5056):

 

Date published: December 7, 2018
Status: Active

Iowa Shelf Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Iowa Shelf Province (5052):

 

Date published: November 30, 2018
Status: Completed

Black Warrior Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Black Warrior Basin Province 5065:

Date published: November 30, 2018
Status: Active

Illinois Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the  Illinois Basin Province 5064:

Date published: November 30, 2018
Status: Active

Cherokee Platform Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Cherokee Platform Province 5060 in Western Oklahoma, Southeast Kandas and Western Missouri:

Date published: November 29, 2018
Status: Active

Gulf Coast Petroleum Systems Project - Research

This site highlights the research on the processes that impact the formation, accumulation, occurrence and alteration of hydrocarbon energy resources of the Gulf Coast of Mexico.  This portion of the project also conducts assessments of undiscovered, technically recoverable hydrocarbon resources (click here for...

Date published: November 28, 2018
Status: Active

Natural Drought and Flood Histories from Lacustrine Archives

Previous work performed as part of the USGS Holocene Synthesis project illuminated complex centennial-scale patterns of drought and wetter-than-average conditions across the North American continent interior during the past two millennia, where paleorecord data coverage is sparse.  In order to explain the patterns of naturally-occurring drought, floods, and storms for the past, identified by...

Date published: November 1, 2018
Status: Active

Using Molecular Tools to Recalibrate Freshwater Mussel Taxonomy with a Focus on Imperiled Species

Freshwater mussels of the family Unionidae, also known as naiads, pearly mussels, freshwater clams, or unionids, are a diverse group of bivalve mollusks that are distributed on every continent except Antarctica. Approximately 300 species are known from the United States, with most of this diversity residing in rivers of the Southeast where many endemic taxa have evolved.

Date published: October 31, 2018
Status: Active

Iowa Flood Information

The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods.  This site provides information about flooding that has occurred in Iowa.

Real-time information on floods in Iowa is available throught the USGS National Water Information System (NWIS)....

Filter Total Items: 72
Date published: August 24, 2017

Coastal Change Hazards Portal

Interactive access to coastal change science and data for our Nation’s coasts. Information and products are organized within three coastal change hazard themes: 1) extreme storms, 2) shoreline change, and 3) sea-level rise. Displays probabilities of coastal erosion.

Date published: July 7, 2017

Real-time Water Use Sites - Arkansas

To view real-time water use sites for Arkansas click here.

Date published: July 7, 2017

Real Time Sediment Concentrations - Arkansas

To view real time sediment concentrations for Arkansas click here.

Date published: July 7, 2017

Real Time Nitrate Readings - Arkansas

To see real time nitrate readings for Arkansas click here.

Date published: July 7, 2017

Arkansas Water Quality Mapper

To view the Arkansas Water Quality Mapper GIS interactive map click here.

Date published: July 7, 2017

Arkansas StreamStats

To see detailed information on Arkansas StreamStats as well as an interactive map click here.

Date published: July 7, 2017

Arkansas Sparta Recovery Groundwater Network

To see site information for the Arkansas Sparta Recovery Groundwater Network click here.

Date published: July 7, 2017

Arkansas Northern Lonoke County Groundwater Network

To see the map and site information for the Arkansas Northern Lonoke County Groundwater Network click here.

Date published: July 7, 2017

Groundwater Watch - Hot Springs National Park - Arkansas

Use this interactive map to see information on the Arkansas Hot Springs National Park Groundwater Network. To see the map click here.

Date published: July 7, 2017

Arkansas Natural Resources Commission Groundwater Network

To see the map of the Arkansas Natural Resources Commission Groundwater Network wells click here.

Date published: July 7, 2017

Groundwater Watch - Arkansas

Use this interactive map to see information for the Arkansas Active Water Level Network. To see the map click here.

Date published: July 7, 2017

Rating Curve Retrieval - Arkansas

To get rating curve retrievals for the state of Arkansas click here.

Filter Total Items: 4,275
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Year Published: 2020

Factors affecting sampling strategies for design of an effects‐directed analysis for endocrine‐active chemicals

Effects‐directed analysis (EDA) is an important tool for identifying unknown bioactive components in a complex mixture. Such an analysis of endocrine‐active chemicals (EACs) from water sources has promising regulatory implications but also unique logistical challenges. We propose a conceptual EDA (framework) based on a critical review of EDA...

Brennan, Jennifer; Gale, Robert W.; Alvarez, David; Berninger, Jason P.; Leet, Jessica Kristin; Li, Yan; Wagner, Tyler; Tillitt, Donald E.

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Year Published: 2020

Green turtle mitochondrial microsatellites indicate finer-scale natal homing to isolated islands than to continental nesting sites

 In highly mobile philopatric species, defining the scale of natal homing is fundamental to characterizing population dynamics and effectively managing distinct populations. Genetic tools have provided evidence of regional natal philopatry in marine turtles, but extensive sharing of maternally inherited mitochondrial control region (CR)...

Shamblin, Brian M.; Hart, Kristen; Martin, Kelly J.; Ceriani, Simona A.; Bagley, Dean A.; Mansfield, Katherine L.; Ehrhart, Llewellyn M.; Nairn, Campbell J.

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Year Published: 2020

Discovery of a reproducing wild population of the swamp eel Amphipnous cuchia (Hamilton, 1822) in North America

We report discovery of an established population of the Asian swamp eel Amphipnous cuchia (Hamilton, 1822) in Bayou St. John, an urban waterway in New Orleans, Louisiana, USA. This fish, commonly referred to as cuchia (kuchia), is a member of the family Synbranchidae and is native to southern and southeastern Asia. Recently-used synonyms...

Jordan, Frank; Nico, Leo; Huggins, Krystal; Martinat, Peter J.; Martinez, Dahlia A.; Rodrigues, Victoria L.

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Year Published: 2020

Magnitude and frequency of floods in Alabama, 2015

To improve flood-frequency estimates at rural streams in Alabama, annual exceedance probability flows at gaged locations and regional regression equations used to estimate annual exceedance probability flows at ungaged locations were developed by using current geospatial data, new analytical methods, and annual peak-flow data through September...

Anderson, Brandon T.
Anderson, B.T., 2020, Magnitude and frequency of floods in Alabama, 2015: U.S. Geological Survey Scientific Investigations Report 2020–5032, 148 p., https://doi.org/10.3133/sir20205032.

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Year Published: 2020

Estimated groundwater withdrawals from principal aquifers in the United States, 2015

In 2015, about 84,600 million gallons per day (Mgal/d) of groundwater were withdrawn in the United States for various uses including public supply, self-supplied domestic, industrial, mining, thermoelectric power, aquaculture, livestock, and irrigation. Of this total, about 94 percent (79,200 Mgal/d) was withdrawn from principal aquifers, which...

Lovelace, John K.; Nielsen, Martha G.; Read, Amy L.; Murphy, Chid J.; Maupin, Molly A.
Lovelace, J.K., Nielsen, M.G., Read, A.L., Murphy, C.J., and Maupin, M.A., 2020, Estimated groundwater withdrawals from principal aquifers in the United States, 2015 (ver. 1.1, June 2020): U.S. Geological Survey Circular 1464, 70 p., https://doi.org/10.3133/cir1464.

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Year Published: 2020

Book review: Proceedings of the First International Snakehead Symposium

Snakehead fishes (family Channidae) are among the most maligned aquatic invasive species in the USA and some other countries where they have been introduced outside of their native range in Asia and Africa. Nevertheless, snakeheads continue to be widely exploited in the live‐food trade in aquaculture and wild‐capture fisheries, are highly sought...

Walsh, Stephen

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Year Published: 2020

The incubation environment of nests deposited by a genetically distinct group of loggerhead sea turtles in Northwest Florida

The warming climate presents a challenge to conservation of all threatened and endangered species but particularly to those that exhibit temperature-dependent sex determination such as sea turtles. Changes in temperature may result in changes in the sex ratio of the population which can directly affect reproductive rate, abundance and population...

Lamont, Margaret; Johnson, Darren; Carthy, Raymond

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Year Published: 2020

Modelling grass carp egg transport using a 3-D hydrodynamic river model: The role of egg retention in dead zones on spawning success

Invasive grass carp (Ctenopharyngodon idella) are known to spawn in the Sandusky River, Ohio, USA, within the Great Lakes Basin, and are threatening to expand throughout the Great Lakes. Successful spawning is thought to require that eggs remain in suspension until hatching, which depends on river hydrodynamics and temperature-dependent egg...

Heer, Tej; Wells, Mathew G.; Jackson, P. Ryan; Mandrak, Nicholas E.

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Year Published: 2020

A graphical causal model for resolving species identity effects and biodiversity–ecosystem function correlations

Identifying and clearly communicating the drivers of ecosystem function is a crucially important goal for both basic and applied ecology. This has proven difficult because the putative causes (e.g., environment, species identity, biodiversity, and functional traits) are numerous and correlated. The problem is exacerbated by a lack of a formal...

Schoolmaster, Donald R.; Zirbel, Chad R; Cronin, James P.

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Year Published: 2020

Migration corridors and threats in the Gulf of Mexico and Florida Straits for loggerhead sea turtles

Along migration corridors, animals can face natural and anthropogenic threats that differ from those in breeding and non-breeding residence areas. Satellite telemetry can aid in describing the timing and location of these migrations. We use this tool with switching state-space modeling and line kernel density estimates to identify migration...

Iverson, Autumn; Benscoter, Allison; Fujisaki, Ikuko; Lamont, Margaret; Hart, Kristen

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Year Published: 2020

Groundwater chloride concentrations in domestic wells and proximity to roadways in Vermont, 2011–2018

The Vermont Department of Health and the U.S. Geological Survey analyzed the concentrations of chloride in groundwater samples collected from 4,319 domestic wells across Vermont between 2011 and 2018. Ninety of these wells were sampled twice and the remaining 4,229 were sampled once. This sample size represents approximately 4 percent of all wells...

Levitt, Joseph P.; Larsen, Sille L.
Levitt, J.P., and Larsen, S.L., 2020, Groundwater chloride concentrations in domestic wells and proximity to roadways in Vermont, 2011–2018: U.S. Geological Survey Open-File Report 2019–1148, 12 p., https://doi.org/10.3133/ofr20191148.

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Year Published: 2020

Hydrogeologic framework and simulation of predevelopment groundwater flow, eastern Abu Dhabi Emirate, United Arab Emirates

Groundwater in eastern Abu Dhabi in the United Arab Emirates is an important resource that is widely used for irrigation and domestic supplies in rural areas. The U.S. Geological Survey and the Environment Agency—Abu Dhabi cooperated on an investigation to integrate existing hydrogeologic information and to answer questions about regional...

Eggleston, Jack R.; Mack, Thomas J.; Imes, Jeffrey L.; Kress, Wade; Woodward, Dennis W.; Bright, Daniel J.
Eggleston, J.R., Mack, T.J., Imes, J.L., Kress, W., Woodward, D.W., and Bright, D.J., 2020, Hydrogeologic framework and simulation of predevelopment groundwater flow, eastern Abu Dhabi Emirate, United Arab Emirates: U.S. Geological Survey Scientific Investigations Report 2018–5158, 48 p., https://doi.org/10.3133/sir20185158.

Filter Total Items: 217
Cedar Rapids
December 31, 2017

Helicopter Lifting Off to Start a Data Collection Run for EM Data

Helicopter lifting off to start a data collection run.

A Cuban treefrog on a green leaf
November 13, 2017

Cuban treefrogs have leaped into Louisiana

Non-native Cuban treefrogs have established a breeding population in New Orleans, Louisiana, the first such population on the U.S. mainland outside Florida. The treefrogs were discovered at the Audubon Zoo shortly after a shipment of palm trees from Florida were planted in the zoo's elephant enclosure in 2016. USGS scientist Brad Glorioso confirmed the presence of a

...
November 9, 2017

Image of the Week - Isle de Jean Charles, Louisiana

Off the coast of Louisiana, the small Isle de Jean Charles has nearly been swallowed by the ocean. Only about 2% of the land mass remains compared to it's size in the 1950s.
 

September 30, 2017

USGS Hurricane Preparedness

Before a hurricane, USGS Scientists undertake a data collection effort of a grand scale. They install a temporary mobile network of sensors along the coasts to collect additional data on the intensity of storm surge, one of the most dangerous elements of a hurricane. This effort provides critical information that allows various USGS partners and emergency responders to

Microscopic video imaging is used for computerized analysis of sperm motility parameters
September 20, 2017

Microscopic video imaging is used for computerized analysis of sperm m

Photomicroscopy and Flow Cytometry Laboratory — Lafayette, Louisiana. Microscopic video imaging is used for computerized analysis of sperm motility parameters

August 31, 2017

Image of the Week: Hurricane Harvey Inundates Gulf Coast

Hurricane Harvey made landfall on August 25th. Over the next few days, record rain totals had devastated the area.

At the USGS EROS Center, we study land change, operate the Landsat satellites, and maintain the longest, continuously acquired collection of images of the Earth's land surface.

USGS EROS Center (

Satellite picture of Hurricane Harvey
August 26, 2017

Hurricane Harvey Inundates Gulf Coast

Hurricane Harvey made landfall on the Gulf Coast of Texas as a Category 4 hurricane on the night of August 25, 2017. It then stalled over southeastern Texas as a tropical storm and continued to creep northeast over Louisiana.

August 7, 2017

Developing Effective Drought Monitoring Tools for Farmers and Ranchers

This webinar was conducted on August 7, 2017 as part of the USGS National Climate Change and Wildlife Science Center’s Climate Change Science and Management Webinar Series, held in partnership with the USFWS National Conservation Training Center. 

Webinar Summary: The South Central U.S. is one of the main agricultural regions in North America: annual agricultural

chart of vegetation change in the bird's foot delta
July 31, 2017

Changing vegetation in the Delta 2016-2017

Chart showing changes in vegetation density in the Mississippi River delta in Louisiana, May 2015-May 2016. From a USGS Open File Report published in July 2017 by co-authors Elijah Ramsey III and Amina Rangoonwala,

Map shows early wetland losses in red, recent losses in purple
July 10, 2017

Map shows early wetland losses in red, recent losses in purple

This map shows the historic trend in wetland losses, with early losses in red and the most recent ones in purple.

Aerial view of southeast Louisiana coastal marshes
July 10, 2017

Louisiana's Coastal Wetland Loss Rate Continues to Slow

An aerial view of southeast Louisiana coastal marshes. 

Satellite images of the same marsh in 2008 and 2016
July 10, 2017

Restoration projects help some Louisiana coastal wetlands rebuild

Satellite images of the same wetland taken in 2008 and 2016 show a wetland restoration project has produced some gains in marsh area.

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Photo of Flooding on Mississippi River in December 2015
October 13, 2016

An assessment of the flooding that occurred in the Meramec River Basin from December 2015–January 2016 is available in a new report from the U.S. Geological Survey. The report includes peak stages and streamflows, historical comparisons and flood-frequency statistics from the record flood.

USGS: Science for a changing world
September 26, 2016

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jason McVay at 319-430-6962.

Iowa
September 23, 2016

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jason McVay at 319-430-6962.

CERC ecological research on Missouri River
September 12, 2016

Representatives from the offices of Senator Roy Blunt, Senator Claire McCaskill and Congresswoman Vicky Hartzler will join leaders from the U.S. Geological Survey, federal and state partners and city officials for a special 50th anniversary event at the USGS Columbia Environmental Research Center in Columbia, Missouri, this Thursday, September 15.

Iowa
August 24, 2016

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jason McVay at 319-430-6962.

Image shows aerial imagery of flooding in Louisiana, courtesy of the National Geodetic Survey
August 22, 2016

The USGS response to the Louisiana floods is part of the larger USGS flood science mission...

Image shows a flooded street with a USGS truck nearby
August 19, 2016

All affected USGS scientists are alive and well, and our flood work continues...

Image shows aerial imagery of flooding in Louisiana, courtesy of the National Geodetic Survey
August 18, 2016

Six streamgages Set peaks of record and 50 stations were overtopped by floodwaters.

Filter Total Items: 50