Unified Interior Regions

Mississippi

We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and landscapes of the Southeastern United States and the Caribbean region.

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We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and landscapes of the Southeastern United States and the Caribbean region.

News

Date published: August 26, 2021

Media Alert: Flights Above the Mississippi Alluvial Plain and Adjacent Areas to Continue Aquifer Mapping

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the U.S. Geological Survey is announcing this low-level airborne project. Your assistance informing the local communities is appreciated.   

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Date published: September 20, 2021
Status: Completed

Biological Objectives for the Gulf Coast: Biological Planning Units & Target Species Population Objectives

The USGS partnered with the U.S. Fish and Wildlife Service and its conservation partners to develop 16 Biological Planning Units (BPU) and six Aquatic Extensions and compile population objectives for 166 species that are representative...

Date published: September 20, 2021
Status: Completed

Strategic Habitat Conservation for Gulf Sturgeon

WARC researchers partnered with Gulf Sturgeon decision makers and biologists to develop a Bayesian network model that uses habitat characteristics to predict the quantity of juvenile winter foraging habitat under alternative river discharge and timing of juvenile arrival scenarios.

Date published: September 17, 2021
Status: Active

Strategic Habitat Conservation for Brown Pelican

WARC researchers partnered with managers and species experts to develop a Bayesian network model and a geospatial habitat characteristics dataset to predict the number of Brown Pelican breeding pairs on islands in the northern Gulf of Mexico.

Date published: September 17, 2021
Status: Active

Strategic Habitat Conservation for Black Skimmer and Gull-billed Tern

WARC researchers partnered with managers and species experts to develop a Bayesian network model and a geospatial habitat characteristics dataset to predict the number of breeding pairs of Black Skimmer and Gull-billed Tern along the northern Gulf of Mexico.

Date published: October 29, 2020
Status: Active

Enhancing Cross-Jurisdictional Adaptive Management in the Gulf of Mexico

Using an iterative qualitative coding process, WARC researchers are identifying objectives, stressors, and management priorities to support the implementation of adaptive management in restoration programs across the Gulf of Mexico.

Date published: July 29, 2020
Status: Active

Using Occupancy Analysis to Understand Ecological and Environmental Stressors that Affect the Range and Abundance of Gulf Coast Waterdogs (Necturus beyeri) in Louisiana Bayous

Sampling for Gulf Coast waterdogs is providing essential information to better understand the factors that impact the species' occupancy across Louisiana.

Date published: April 17, 2020
Status: Active

The Response of Coastal Wetlands to Sea-level Rise: Understanding how Macroscale Drivers Influence Local Processes and Feedbacks

The purpose of this work is to advance our understanding of how coastal wetland responses to sea-level rise (SLR) within the conterminous United States are likely to vary as a function of local, regional, and macroscale drivers, including climate. Based on our interactions with managers and decision makers, as well as our knowledge of the current state of the science, we propose to: (a)...

Date published: January 22, 2020
Status: Active

Using Unmanned Aerial Systems (UAS) Capabilities to Help Identify Giant Salvinia (Salvinia molesta) and the effects of Salvinia weevil (Cyrtogagous salviniae)

USGS is collecting remotely sensed data to classify Salvinia molesta, a non-native aquatic species that reduces light and oxygen levels in water, making it unsuitable for fish and other aquatic plant life.

Date published: September 4, 2019
Status: Active

Real-Time Storm Response

Coastal change forecasts and pre- and post-storm photos documenting coastal change for landfalling storms. Currently responding to Hurricane Dorian.

Contacts: Kara Doran
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Date published: May 10, 2021

Combined results and derivative products of hydrogeologic structure and properties from airborne electromagnetic surveys in the Mississippi Alluvial Plain

Electrical resistivity results from two regional airborne electromagnetic (AEM) surveys (Minsley et al. 2021 and Burton et al. 2021) over the Mississippi Alluvial Plain (MAP) were combined by the U.S. Geological Survey to produce three-dimensional (3D) gridded models and derivative hydrogeologic products.

Date published: February 22, 2021

Verified Irrigated Agricultural Lands for the United States, 2002-17

The spatial extents of verified irrigated lands were compiled from various federal and state sources across the nation and combined into a single Geographic Information System (GIS) geodatabase for the purpose of model training and validation.

Date published: February 19, 2021

Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2018 - February 2019

Airborne electromagnetic (AEM) and magnetic survey data were collected during February 2016 along 300 line kilometers in the western Yukon Flats near Stevens Village, Alaska. Data were acquired with the CGG RESOLVE frequency-domain helicopter-borne electromagnetic systems together with a Scintrex Cesium Vapour CS-3 magnetometer. The AEM average depth of investigation is about 100 m. The survey...

Date published: February 10, 2021

Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2019 - March 2020

Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2019 to March 2020 along 24,030 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different airborne sensors: the CGG Canada Services, Ltd.

Date published: February 5, 2021

An Unvegetated to Vegetated Ratio (UVVR) for coastal wetlands of the Conterminous United States (2014-2018)

This USGS Data Release represents geospatial data sets which were created to produce an Unvegetated to Vegetated Ratio (UVVR) for coastal wetlands of the conterminous United States (2014-2018).

Date published: April 23, 2020

Domestic Wells in the United States

Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poor-quality groundwater. 

Date published: February 25, 2020

Ground-based electromagnetic survey, Shellmound, Mississippi, October 2018

Shallow soil characteristics were mapped near Shellmound, Mississippi, using the DualEM 421 electromagnetic sensor in October 2018. Data were acquired by towing the DualEM sensor on a wheeled cart behind an all-terrain vehicle (ATV), with the sensor at a height of 0.432 meters (m) above the ground surface. Approximately 175 line-kilometers of data were acquired over an area of nearl

Date published: December 20, 2019

Suspended-sediment concentration data from water samples collected in 2016-17 in Grand Bay, Alabama and Mississippi

In wetlands within and near Grand Bay National Estuarine Research Reserve, parts of the salt marsh are eroding relatively rapidly. To understand the connection between sediment fluxes and these processes, the U.S. Geological Survey made oceanographic and water-quality measurements from August 2, 2016, to January 28, 2017

Date published: August 27, 2019

Airborne electromagnetic, magnetic, and radiometric survey, Shellmound, Mississippi, March 2018

Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired in late February to early March 2018 along 2,364 line-kilometers in the Shellmound, Mississippi study area. Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. RESOLVE frequency-domain AEM instrument that is used to map subsurface

Date published: July 12, 2019

Crustal Architecture Beneath the Southern Midcontinent (USA) -- Data Grids and 3D Geophysical Models

Regional grid files and 3D voxel models were used to study crustal architecture beneath the Southern Midcontinent (USA) by McCafferty and others (2019). The study covered a rectangular, multi-state area of 924 by 924 kilometers centered on Missouri, and a corresponding volume extending from the topographic surface to a depth of 50 kilometers below sea level. The grid files consist of

Date published: July 1, 2019

Ground-based time-domain electromagnetic data and resistivity models for the Mississippi Alluvial Plain Project

The Mississippi Alluvial Plain (MAP) Project contains several geologic units which act as important aquifers. We collected several sets of time-domain electromagnetic (TEM) data consisting of two higher-density surveys and six regional-scale transects. The higher density surveys were collected to compare and contrast to other geophysical data not included in this data release, such as a

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geophysical visualization showing 3 layers of data
May 7, 2021

The USGS Mississippi Alluvial Plain (MAP) Regional Water Availability Study began airborne geophysical mapping to obtain high-resolution information about the hydrogeologic structure and properties of the aquifer. This geonarrative showcases the geophysical data collected in this effort and provides a three-dimensional view into the Mississippi Alluvial Plain subsurface. 

map of study area
November 16, 2020

A high-resolution airborne and ground-based geophysical survey was conducted near Shellmound, Mississippi as part of the Mississippi Alluvial Plain (MAP) Regional Water Availability Study. This geonarrative showcases the geophysical data used in support of this effort, compiles complementary datasets, and provides additional resources to the user.

Black and grey map of the contiguous 48 states shaded by the number of people using domestic wells per square kilometer (2010)
April 23, 2020

Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poor-quality groundwater. 

North Platte, Nebraska US Topo quadrangle: 2014
September 26, 2016

Network wells depicted on the Climate Response Network location map
Note: Color shading in the table below indicates multiple wells that plot as a single point on the state location map above.
Note: BLS = Water Level in Feet Below Land Surface, RVD = Water Level referenced to a vertical datum

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

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

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Year Published: 2021

Oyster model inventory: Identifying critical data and modeling approaches to support restoration of oyster reefs in coastal U.S. Gulf of Mexico waters

Executive SummaryAlong the coast of the U.S. Gulf of Mexico, the eastern oyster (Crassostrea virginica) plays important ecological and economic roles. Commercial landings from this region account for more than 50 percent of all U.S. landings; these oyster reefs also provide varied ecosystem services, including nursery habitat for many fish and...

La Peyre, Megan K.; Marshall, Danielle A.; Sable, Shaye E.
La Peyre, M.K., Marshall, D.A., and Sable, S.E., 2021, Oyster model inventory: Identifying critical data and modeling approaches to support restoration of oyster reefs in coastal U.S. Gulf of Mexico waters: U.S. Geological Survey Open-File Report 2021–1063, 40 p., https://doi.org/10.3133/ofr20211063.

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Year Published: 2021

Sediment dynamics of a divergent bay–marsh complex

Bay–marsh systems, composed of an embayment surrounded by fringing marsh incised by tidal channels, are widely distributed coastal environments. External sediment availability, marsh-edge erosion, and sea-level rise acting on such bay–marsh complexes may drive diverse sediment-flux regimes. These factors reinforce the ephemeral and dynamic nature...

Nowacki, Daniel J. ; Ganju, Neil Kamal

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Year Published: 2020

The relation of geogenic contaminants to groundwater age, aquifer hydrologic position, water type, and redox conditions in Atlantic and Gulf Coastal Plain aquifers, eastern and south-central USA

Groundwater age distributions developed from carbon-14 (14C), tritium (3H), and helium-4 (4He) concentrations, along with aquifer hydrologic position, water type, and redox conditions, were compared to geogenic contaminants of concern (GCOC) from 252 public-supply wells in six Atlantic and Gulf Coastal Plain unconsolidated-sediment aquifers....

Degnan, James R.; Lindsey, Bruce D.; Levitt, Joseph Patrick; Szabo, Zoltan

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Year Published: 2019

Understanding tidal marsh trajectories: Evaluation of multiple indicators of marsh persistence

Robust assessments of ecosystem stability are critical for informing conservation and management decisions. Tidal marsh ecosystems provide vital services, yet are globally threatened by anthropogenic alterations to physical and biological processes. A variety of monitoring and modeling approaches have been undertaken to determine which tidal...

Wasson, Kerstin; Ganju, Neil Kamal; Defne, Zafer; Endris, Charlie; Elsey-Quirk, Tracy; Thorne, Karen M.; Freeman, Chase M.; Guntenspergen, Glenn R.; Nowacki, Daniel J. ; Raposa, Kenneth B.

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Year Published: 2019

Simple metrics predict salt-marsh sediment fluxes

The growth (or decay) of salt marshes depends on suspended-sediment flux into and out of the marsh. Suspended-sediment concentration (SSC) is a key element of the flux, and SSC-based metrics reflect the long-term sediment-flux trajectories of a variety of salt marshes. One metric, the flood–ebb SSC differential, correlates with area-normalized...

Nowacki, Daniel J. ; Ganju, Neil Kamal

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Year Published: 2018

State transportation agencies partner to deploy and enhance ShakeCast

The California Department of Transportation (Caltrans) is organizing and leading a three-year Transportation Pooled Fund (TPF) project, Connecting the Dots: Implementing ShakeCast Across Multiple State Departments of Transportation for Rapid Post-Earthquake Response. Ten state Departments of Transportation (DOT)—CA, ID, MO, MS, OK, OR, SC, TX, UT...

Turner, L.; Wald, David J.; Lin, Kuo-wan; Chiou, Brian; Slosky, Daniel

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Year Published: 2018

Using mercury injection pressure analyses to estimate sealing capacity of the Tuscaloosa marine shale in Mississippi, USA: Implications for carbon dioxide sequestration

This work used mercury injection capillary pressure (MICP) analyses of the Tuscaloosa Group in Mississippi, including the Tuscaloosa marine shale (TMS), to assess their efficacy and sealing capacity for geologic carbon dioxide (CO2) sequestration. Tuscaloosa Group porosity and permeability from MICP were evaluated to calculate CO2 column...

Lohr, Celeste D.; Hackley, Paul C.
Lohr, C.D. and Hackley, P.C., 2018, Using mercury injection pressure analyses to estimate sealing capacity of the Tuscaloosa marine shale in Mississippi, USA: Implications for carbon dioxide sequestration: International Journal of Greenhouse Gas Control, v. 78, p. 375-387, https://doi.org/10.1016/j.ijggc.2018.09.006.

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Year Published: 2018

Bat community response to silvicultural treatments in bottomland hardwood forests managed for wildlife in the Mississippi Alluvial Valley

Silvicultural treatments (e.g., selective timber harvests) that are prescribed to promote wildlife habitat are intended to alter the physical structure of forests to achieve conditions deemed beneficial for wildlife. Such treatments have been advocated for management of bottomland hardwood forests on public conservation lands in the Mississippi...

Ketzler, Loraine P.; Comer, Christopher E.; Twedt, Daniel J.
Ketzler, L. P., Comer, C. E., and Twedt, D. J., 2018, Bat community response to silvicultural treatments in bottomland hardwood forests managed for wildlife in the Mississippi Alluvial Valley: Forest Ecology and Management, v. 417, p. 40-48. https://doi.org/10.1016/j.foreco.2018.02.047

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Year Published: 2016

St. Louis area earthquake hazards mapping project; seismic and liquefaction hazard maps

We present probabilistic and deterministic seismic and liquefaction hazard maps for the densely populated St. Louis metropolitan area that account for the expected effects of surficial geology on earthquake ground shaking. Hazard calculations were based on a map grid of 0.005°, or about every 500 m, and are thus higher in resolution than any...

Cramer, Chris H.; Bauer, Robert A.; Chung, Jae-won; Rogers, David; Pierce, Larry; Voigt, Vicki; Mitchell, Brad; Gaunt, David; Williams, Robert; Hoffman, David; Hempen, Gregory L.; Steckel, Phyllis; Boyd, Oliver S.; Watkins, Connor M.; Tucker, Kathleen; McCallister, Natasha
Cramer C.H., Bauer R.A., Chung J.-W., Rogers J.D., Pierce L., Voigt V., Mitchell B., Gaunt D., Williams R.A., Hoffman D., Hempen G.L., Steckel P.J., Boyd O.S., Watkins C.M., Tucker K., McCallister N.S. St. Louis area earthquake hazards mapping project; seismic and liquefaction hazard maps Seismological Research Letters, January, 2017, Vol. 88, Issue 1, pp. 206-223

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Year Published: 2013

Economic vulnerability to sea-level rise along the northern U.S. Gulf Coast

The northern Gulf of Mexico coast of the United States has been identified as highly vulnerable to sea-level rise, based on a combination of physical and societal factors. Vulnerability of human populations and infrastructure to projected increases in sea level is a critical area of uncertainty for communities in the extremely low-lying and flat...

Thatcher, Cindy A.; Brock, John; Pendleton, Elizabeth A.
Economic vulnerability to sea-level rise along the northern U.S. Gulf Coast; 2013; Article; Journal; Journal of Coastal Research; Thatcher, Cindy A.; Brock, John C.; Pendleton, Elizabeth A.

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Year Published: 2011

Earthquakes in Mississippi and vicinity 1811-2010

This map summarizes two centuries of earthquake activity in Mississippi. Work on the Mississippi map was done in collaboration with the Mississippi Department of Environmental Quality, Office of Geology. The earthquake data plotted on the map are from several sources: the Mississippi Department of Environmental Quality, the Center for Earthquake...

Dart, Richard L.; Bograd, Michael B.E.
Earthquakes in Mississippi and vicinity 1811-2010; 2011; OFR; 2011-1117; Dart, Richard L.; Bograd, Michael B. E.

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Year Published: 1994

Estimated water withdrawals in Mississippi during 1990

Johnson, Penny M.
Estimated water withdrawals in Mississippi during 1990; 1994; FS; 060-94; Johnson, Penny M.

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April 22, 2021

We are the Coastal and Marine Hazards and Resources Program (AD)

We are the USGS Coastal and Marine Hazards and Resources Program. Our mission is to provide science for sustainable stewardship of Earth’s precious resources. We conduct research, quantify resources, work to understand ecosystems, and develop tools to ensure our Nation has the best information to manage resources and prepare for

April 22, 2021

We are the Coastal and Marine Hazards and Resources Program

We are the USGS Coastal and Marine Hazards and Resources Program. Our mission is to provide science for sustainable stewardship of Earth’s precious resources. We conduct research, quantify resources, work to understand ecosystems, and develop tools to ensure our Nation has the best information to manage resources and prepare for

A scientist sits on a personal watercraft near a vegetated, marsh shoreline.
March 5, 2021

Using personal watercraft to collect nearshore bathymetry data

A USGS scientist sits on a personal watercraft (PWC) equipped with scientific equipment to collect bathymetry data - or the depth of the water - at locations of interest in Point Aux Chenes Bay, Mississippi. 

hurricanes and tropical storms in 9.15.2020 NOAA satellite image
September 15, 2020

USGS Scientists Work on Four Tropical Cyclones at Once

In this NOAA satellite image from Sept. 15, 2020, Hurricane Sally approaches the U.S. Gulf Coast, Hurricane Paulettte creates storm waves far out in the Atlantic, and Tropical Storms Teddy and Vicky lie near the coast of Africa. Two tropical depressions are also developing; one of them is not visible in this image.

A screenshot of the Coastal Change Hazards Portal for Hurricane Laura showing red lines on gulf coast where change is likely.
August 26, 2020

Coastal Change Hazards Portal for Hurricane Laura

This Coastal Change Storm Hazard Team forecast was made at 4 AM CDT August 26, 2020 and shows forecast beach erosion at the base of the dunes (the strip of colored bars closest to the coast), overwash (middle strip) and inundation (outer strip) from Hurricane Laura.  The model accounts for sandy beaches and barrier islands and does not include marshes, forested or sea

...
December 31, 2019

Wonderful Watery Wetlands - Part 2 (AD)

Scientists at the U.S. Geological Survey Wetland and Aquatic Research Center (www.usgs.gov/warc) study important aspects of wetlands, such as the flow and quality of water, the chemistry of soil, and the plants and animals which call this ecosystem home. In this video, we learn about the variety of ways water can be studied, and how

December 31, 2019

Wonderful Watery Wetlands - Part 2

Scientists at the U.S. Geological Survey Wetland and Aquatic Research Center (www.usgs.gov/warc) study important aspects of wetlands, such as the flow and quality of water, the chemistry of soil, and the plants and animals which call this ecosystem home. In this video, we learn about the variety of ways water can be studied, and how

December 31, 2019

Digging into the soil of wetlands (AD)

Scientists at the U.S. Geological Survey Wetland and Aquatic Research Center study important aspects of wetlands, such as the flow and quality of water, the chemistry of soil, and the plants and animals which call this ecosystem home. In this video, we explore the world beneath our feet by taking a close look at the anaerobic soils

December 31, 2019

Digging into the soil of wetlands

Scientists at the U.S. Geological Survey Wetland and Aquatic Research Center (www.usgs.gov/warc) study important aspects of wetlands, such as the flow and quality of water, the chemistry of soil, and the plants and animals which call this ecosystem home. In this video, we explore the world beneath our feet by taking a close look at

December 31, 2019

The Power of Wetland Plants

Scientists at the U.S. Geological Survey Wetland and Aquatic Research Center study important aspects of wetlands, such as the flow and quality of water, the chemistry of soil, and the plants and animals which call this ecosystem home. The plants found in wetlands are known as hydrophytic vegetation and they play a crucial role in

December 31, 2019

Why do wetlands matter?

Scientists at the U.S. Geological Survey Wetland and Aquatic Research Center (www.usgs.gov/warc) study important aspects of wetlands, such as the flow and quality of water, the chemistry of soil, and the plants and animals which call this ecosystem home. In this video, we learn about a handful of ways healthy wetland habitats benefit

December 31, 2019

What makes a wetland a wetland? (AD - Part 1)

Scientists at the U.S. Geological Survey Wetland and Aquatic Research Center study important aspects of wetlands, such as the flow and quality of water, the chemistry of soil, and the plants and animals which call this ecosystem home. In this video, we learn about three characteristics you can use to identify a wetland near you. 

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Rice fields on the Mississippi Alluvial Plain
August 26, 2021

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the U.S. Geological Survey is announcing this low-level airborne project. Your assistance informing the local communities is appreciated.   

THUMBNAIL: Timelapse of Fire Stations in MS
August 3, 2021

Summary statistics are now available for this challenge. Thanks again to everyone who contributed!

TNMCorps Mapping Challenge: Fire Stations in MS FINISHED
July 29, 2021

This challenge is now complete! Thank you to everyone who contributed!

TNMCorps Mapping Challenge: Fire Stations in MS
July 22, 2021

This challenge is nearing completion with over 100 edits since last week - SUPERB!  

TNMCorps Mapping Challenge: Fire Stations in MS
July 15, 2021

Another 100 points came in for this challenge since last week - NICE WORK!!  

TNMCorps Mapping Challenge: Fire Stations in MS
July 8, 2021

Volunteers contributed almost 150 edits since last week - MARVELOUS!    

TNMCorps Mapping Challenge: Fire Stations in MS
July 1, 2021

Volunteers are diving in feet first with over 100 edits contributed since this challenge was launched last week - EXCELLENT! 

TNMCorps Mapping Challenge: Fire Stations in MS NEW
June 23, 2021

TNMCorps mapping challenges transition to the Gulf Coast with another challenge for fire stations in Mississippi! This is an excellent challenge for new volunteers or Standard Editors with many unedited (i.e., red) points that need to be confirmed.

CGG RESOLVE in flight
May 20, 2021

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project.  Your assistance informing the local communities is appreciated.  

Haploid specimen
April 7, 2021

This scientific advancement can lead to the development of new genetic markers that will help scientists distinguish between pallid sturgeon and the shovelnose sturgeon, another sturgeon species that looks similar but is more common.

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