Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 210
Province 5060, Cherokee Platform, Oil and Gas Assessments
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:

An image of USGS research drilling rig on side of U.S. Route 90 in Kinney County, Texas.  The sky is streaked with clouds.
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...

Canoe coring platform in Potomac River
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...

WaterWatch Map of flood and high flow conditions in Iowa
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)....

slide showing overwash and/or breaching processes in sediment cores
Date Published: October 29, 2018
Status: Completed

Barrier Island Evolution - Geologic Analysis

Quantifying changes in morphology and sediment distribution over short time scales will demonstrate how geologic variability influences medium-term barrier island response and near-term barrier island trajectories and help to refine sedimentological boundary conditions for morphologic evolution models.

Long-term trends in forest regeneration
Date Published: October 16, 2018
Status: Active

Long-term trends in forest regeneration across drought and salinity gradients in the northern Gulf Coast- Beth Middleton

Relict forests are becoming more common as as climates become hotter, drier and more saline. The first sign of threat to these forests is a chronic lack of seedling and sapling recruitment. This project will help pinpoint forests at risk to help in future management.

Flood 08
Date Published: October 4, 2018
Status: Active

Flood Information at Selected Bridge and Culvert Sites

The USGS systematically collects all types of water data to better manage the water resources in each state.

Photo of Hydrologist Dan Christiansen
Date Published: September 5, 2018
Status: Active

Research and Investigations

The USGS Central Midwest Water Science Center (CMWSC) is comprised of water science offices in Illinois, Iowa, and Missouri.

The MOWSC conducts research and monitoring on a wide variety of hydrologicial issues affecting steams, rivers, lakes, and groundwater in our three states and across the Nation.

Molecular Devices ImageXpress† High-Content Imaging System
Date Published: August 30, 2018
Status: Active

High-Content Screening Laboratory — Columbia, Missouri

About the Laboratory

Toxicologists at the High-Content Screening Laboratory develop alternative toxicity testing to efficiently provide specific toxicity data to managers and regulators and prioritize compounds for further testing. Our high-content imaging capability provides a highly adaptable platform for early life stage fish toxicity testing at stages considered an...

Microscopic video imaging is used for computerized analysis of sperm motility parameters
Date Published: August 29, 2018
Status: Active

Photomicroscopy and Flow Cytometry Laboratory — Lafayette, Louisiana

About the Laboratory

Microbiologists at the Photomicroscopy and Flow Cytometry Laboratory develop and apply biomarkers to evaluate the potential impacts of environmental contaminants at the cellular and molecular levels. Because molecular and biochemical responses of cells are preceded by chemical changes in nuclei, cytoplasm, membranes, and extracellular fluids, these...

Samplers used for sampling hydrophilic organic chemicals from water
Date Published: August 29, 2018
Status: Active

Passive Sampling Research — Columbia, Missouri

About the Laboratory

The scientists at the Environmental Chemistry Laboratory at the Columbia Environmental Research Center (CERC), Missouri, are pioneers in the development and application of passive sampling techniques for environmental monitoring. The goal of passive sampling is to provide a link between chemical occurrence and biological exposure.

A customized extraction system used for the collection and extraction of large volumes of water in the Chesapeake Bay watershed
Date Published: August 29, 2018
Status: Active

Environmental Chemistry Laboratory — Columbia, Missouri

About the Laboratory

The Environmental Chemistry Laboratory at the Columbia Environmental Research Center, Missouri, develops and applies innovative methods of sampling and analysis to answer critical questions about the occurrence, distribution, fate and transport, and biological exposure of chemical in all environmental matrices (water, air, tissues, sediments, and...

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Coastal Change Hazards Portal Interactive Mapper screen grab
August 24, 2017

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.

Sediment Sampling - Mississippi River - Arkansas photograph
July 7, 2017

To view real time sediment concentrations for Arkansas click here.

Arkansas Water Quality Mapper GIS Image
July 7, 2017

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

Arkansas StreamStats Interactive Map
July 7, 2017

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

Arkansas Sparta Recovery Groundwater Network Map
July 7, 2017

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

Arkansas Northern Lonoke County Groundwater Network Map
July 7, 2017

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

Hot Springs National Park Groundwater Network - Arkansas Map
July 7, 2017

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

Arkansas Natural Resources Commission Groundwater Network Map
July 7, 2017

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

Groundwater Watch - Arkansas Map
July 7, 2017

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

USGS: Science for a changing world
July 7, 2017

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

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Year Published: 2019

Scientist’s guide to developing explanatory statistical models using causal analysis principles

Recent discussions of model selection and multimodel inference highlight a general challenge for researchers, which is how to clearly convey the explanatory content of a hypothesized model or set of competing models. The advice from statisticians for scientists employing multimodel inference is to develop a well‐thought‐out set of candidate models...

Grace, James; Irvine, Kathryn

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Year Published: 2019

Simulation of groundwater flow and chloride transport in the “1,500-foot” sand, “2,400-foot” sand, and “2,800-foot” sand of the Baton Rouge area, Louisiana

Groundwater withdrawals since the 1940s have lowered water levels, altered groundwater-flow directions, and caused saltwater to intrude within some freshwater-containing sands of the fluvial-deltaic Southern Hills regional aquifer system beneath Baton Rouge, Louisiana. New interpretations of stratigraphic correlations amongst geophysical well logs...

Heywood, Charles E.; Lindaman, Maxwell; Lovelace, John K.
Heywood, C.E., Lindaman, M., and Lovelace, J.K., 2019, Simulation of groundwater flow and chloride transport in the “1,500-foot” sand, “2,400-foot” sand, and “2,800-foot” sand of the Baton Rouge area, Louisiana: U.S. Geological Survey Scientific Investigations Report 2019–5102, 49 p., https://doi.org/10.3133/sir20195102.

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Year Published: 2019

Plot Locator: An app for locating plots in the field

PREMISE: One of the challenges in field biology is locating previously sampled plots. The Plot Locator app was developed to assist field biologists with plot identification and location, with or without GPS or online connectivity. METHODS AND RESULTS: The Plot Locator Android app helps users locate field plots by creating a searchable database...

Boudell, Jere ; Middleton, Beth

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Year Published: 2019

Using maintenance records from a long-term sensor monitoring network to evaluate the relationship between maintenance schedule and data quality

Sensor-based environmental monitoring networks are beginning to provide the large-scale, long-term data required to address important fundamental and applied questions in ecology. However, the data quality from deployed sensors can be difficult and costly to ensure. In this study, we use maintenance records from the 12-year history of Louisiana’s...

Schoolmaster, Donald; Piazza, Sarai

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Year Published: 2019

Simulation of post-hurricane impact on invasive species with biological control management

Understanding the effects of hurricanes and other large storms on ecological communities and the post-event recovery in these communities can guide management and ecosystem restoration. This is particularly important for communities impacted by invasive species, as the hurricane may affect control efforts. Here we consider the effect of a...

Xu, Linhao; Zdechlik, Marya Claire; Smith, Melissa C.; Rayamajhi, Min B.; DeAngelis, Don; Zhang, Bo

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Year Published: 2019

Simulated water-table and pond-level responses to proposed public water-supply withdrawals in the Hyannis Ponds Wildlife Management Area, Barnstable, Massachusetts

The glacial kettle ponds in the Hyannis Ponds Wildlife Management Area in Barnstable, Massachusetts, support a community of rare and endangered plants. The ponds are hydraulically connected to the unconfined aquifer that underlies Cape Cod. The plants are adapted to the rise and fall of water levels in the ponds as the water table fluctuates in...

LeBlanc, Denis R.; McCobb, Timothy D.; Barbaro, Jeffrey R.
LeBlanc, D.R., McCobb, T.D., and Barbaro, J.R., 2019, Simulated water-table and pond-level responses to proposed public water-supply withdrawals in the Hyannis Ponds Wildlife Management Area, Barnstable, Massachusetts: U.S. Geological Survey Scientific Investigations Report 2019–5121, 32 p., https://doi.org/10.3133/sir20195121.

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Year Published: 2019

Influence of turbulence and in-stream structures on the transport and survival of grass carp eggs and larvae at various developmental stages

Understanding the response of grass carp to flow and turbulence regimes during early life stages is fundamental to monitoring and controlling their spread. A comprehensive set of hydrodynamic experiments was conducted with live grass carp eggs and larvae, to better understand their drifting and swimming patterns with 3 different in-stream...

Prada, Andres F.; George, Amy E.; Stahlschmidt, Benjamin H.; Jackson, P. Ryan; Chapman, Duane C.; Tinoco, Rafael O.

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Year Published: 2019

Phosphorus runoff risk assessment in karstic regions of the U.S.

The Phosphorus (P) Index risk assessment tool has been widely adopted across the U.S. to identify and rank site vulnerability to P runoff as part of the Natural Resources Conservation Service (NRCS) nutrient management planning (NMP) process. However, limited success has been achieved in addressing the risk of P loss by subsurface flow pathways,...

Sharpley, Andrew N.; Hays, Phillip D.; Daniels, Michael B.; VanDevender, Karl W.

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Year Published: 2019

Response of tidal marsh vegetation to pulsed increases in flooding and nitrogen

Worldwide, human activities have modified hydrology and nutrient loading regimes in coastal wetlands. Understanding the interplay between these drivers and subsequent response of wetland plant communities is essential to informing wetland management and restoration efforts. Recent restoration strategies in Louisiana proposes to use sediment...

McCoy, Meagan M; Sloey, Taylor M; Howard, Rebecca J.; Hester, Mark W.

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Year Published: 2019

A comparison of the Trojan Y Chromosome strategy to harvesting models for eradication of nonnative species

The Trojan Y Chromosome strategy (TYC) is a promising eradication method for biological control of nonnative species. The strategy works by manipulating the sex ratio of a population through the introduction of supermales that guarantee male offspring. In the current study, we compare the TYC method with a pure harvesting strategy. We...

Lyu, Jingjing; Schofield, Pamela J.; Reaver, Kristen; Beauregard, Matthew; Parshad, Rana D.

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Year Published: 2019

A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013

Executive SummaryThe New York-Pennsylvania area has a long history of hydrocarbon extraction, and the addition of shale gas extraction methods contributes to landscape disturbance borne by previously developed oil and non-shale gas resources. The main unconventional extraction method used to extract shale gas from the Marcellus Shale located in...

Roig-Silva, Coral M.; Milheim, Lesley E.; Slonecker, E. Terrence; Kalaly, Siddiq; Chestnut, Joseph
Roig-Silva, C.M., Milheim, L.E., Slonecker, E.T., Kalaly, S., and Chestnut, J., 2019, A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013: U.S. Geological Survey Scientific Investigations Report 2019–5096, 23 p., https://doi.org/10.3133/sir20195096.

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Year Published: 2019

Flood-frequency comparison from 1995 to 2016 and trends in peak streamflow in Arkansas, water years 1930–2016

In 2016, the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers and the Federal Emergency Management Agency, began a study in Arkansas to investigate possible increasing trends in annual peak streamflow data and the possible resulting increase in the annual exceedance probability flood (AEPF) predictions. Temporal trends...

Ensminger, Paul A.; Breaker, Brian K.
Ensminger, P.A., and Breaker, B.K., 2019, Flood-frequency comparison from 1995 to 2016 and trends in peak streamflow in Arkansas, water years 1930–2016: U.S. Geological Survey Scientific Investigations Report 2019–5131, 20 p., https://doi.org/10.3133/sir20195131.

Filter Total Items: 226
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

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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,

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...

Catawba rhododendron blooming at Round Bald, NC
August 11, 2016

“From the mountains to the coast, the southeastern U.S. contains ecosystems that harbor incredible biodiversity. Many of those ecosystems are already highly at risk from urbanization and other human land-use change. Identifying the ecosystems at risk from climate change will help inform conservation and management to ensure we don’t lose that biodiversity.” (Jennifer Constanza, report author)

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