Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 239
Date published: April 7, 2016
Status: Active

Surface Elevation Vulnerability of Coastal Forested Wetlands to Sea-Level Rise

Wetlands vary in their abilities to keep up with sea-level rise; they either adjust vertically and/or move inland. USGS is working with partners around the world to measure rates of surface elevation change relative to local sea-level rise. 

Date published: April 6, 2016

Soil Properties and Geochronology in Barataria Basin, Louisiana

Will wetland vertical accretion rates be enough to keep up with the predicted rates of sea level rise? USGS looks at soil properties and geochronology in Louisiana wetlands. 

Date published: April 6, 2016

Surface Water Hydrology and Nitrate Dynamics in Delta Islands of Prograding Wax Lake Delta, Louisiana

The Wax Lake Delta is an ideal ecosystem to study the effects of a large-scale river diversion on the biogeochemistry of coastal wetlands, and the capacity of these wetlands to assimilate nutrients delivered by these diversions. USGS works to develop a better understanding of surface water hydrology and nitrate dynamics in this area. 

Date published: April 6, 2016

Tracking and Modeling the Population of the Louisiana Black Bear Using “BearTRAK”

"BearTrak" is an app that provides a central repository for Louisiana Black Bear tracking data, allowing managers to access information more quickly and reliably.

Date published: April 6, 2016

Sediment and Nutrient Retention by Wetlands Receiving Inflows from a Mississippi River Diversion: A Mass Balance Approach

Diversions are currently used in the Mississippi River to stimulate delta growth via increased sediment supply. This technique may also help to reduce nutrient loads before its discharged into the ocean. Scientists at USGS assess how wetlands retain the sediment and nutrients that come from these diversions. 

Date published: April 5, 2016
Status: Active

Genetic Analysis of Wild and Captive Black Carp in the Mississippi River Basin

Black carp have likely been present in the Mississippi River since the 1990s, but their current distribution and spread is not well understood. Genetics is helping to shed light on this species, including its diversity, the relatedness of wild and captive fish, and its introduction history. 

Date published: April 5, 2016

Hydrodynamics and Sediment Transport in Deltas and Coastal Wetlands

Diversions are being used to encourage Missippi River delta growth via increased sediment availability to coastal wetlands. USGS studies hydrodynamics and sediment transport in Louisiana to better understand how marshes and deltas respond to these sediment inputs. 

Date published: April 1, 2016
Status: Active

Monitoring Effects of Barrier Island Restoration on Piping Plovers in Louisiana

The federally threatened piping plover relies on sand-beach habitat year-round for nesting, foraging, and roosting, habitat that is particularly vulnerable to loss and degradation from coastal development, recreation activities, erosion, and sea-level rise. 

Date published: March 22, 2016
Status: Active

Mechanisms of Coastal Marsh Elevation Regulation

Sediment deposition serves an important role in the long-term maintenance of coastal marshes. USGS investigates the mechanisms of coastal marsh elevation regulation to help predict marsh sediment requirements under various sea level rise scenarios. 

Date published: March 18, 2016
Status: Active

Green-Tree Reservoir management practices within the U.S. Fish and Wildlife Service National Wildlife Refuge System

Green-Tree Reservoirs are used as a management tool by National Wildlife Refuges throughout the Southeast United States, but data suggests that forest productivity has declined in these areas. USGS investigates the effects of climate and flooding on tree growth and mortality to assist refuge managers adapt management strategies. 

Contacts: Richard Day
Date published: March 18, 2016
Status: Active

Establishing Explicit Biological Objectives to Guide Strategic Habitat Conservation for the Gulf Coast

To inform conservation efforts for the Gulf Coast, USGS is developing a suite of decision support tools to provide explicit population and habitat objectives.

Date published: March 18, 2016
Status: Active

An Inventory and Comparative Study of Bees, A Keystone Ecological Group in the Endangered Coastal Prairie of Louisiana

Much of Louisiana's coastal prairie has been converted to rice and sugarcane cultivation. USGS is inventorying bee populations in these areas to explore how effective restoration efforts have been.

Contacts: Larry Allain
Filter Total Items: 4,315
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Year Published: 2019

The potential resiliency of a created tidal marsh to sea-level rise

The purpose of this study was to determine the elevation dynamics of a created tidal marsh on the North Carolina coast. Deep rod surface elevation tables (RSET) and feldspar marker horizons (MH) were installed in plots to measure net surface elevation changes and to quantify contributing processes. Twelve total plots were placed on four elevation...

Kamrath, Brock J. W.; Burchell, Michael R.; Cormier, Nicole; Krauss, Ken W.; Johnson, Darren

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Year Published: 2019

Genetic Characterization of Non-Native African Jewelfish, Hemichromis letourneuxi Sauvage 1880, in Florida

The African Jewelfish, Hemichromis letourneuxi, is an invasive, predatory cichlid fish introduced at least once to Florida. Its native range is in northern Africa. First encountered in Miami in the 1960s, it has since been found west and north within the State of Florida. It thrives in a wide range of aquatic habitats, including shallow,...

Belfiore, Natalia M.; Schofield, Pamela J.

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Year Published: 2019

Columbia Environmental Research Center

The U.S. Geological Survey Columbia Environmental Research Center performs research to solve challenging environmental problems related to contaminants and habitat alterations in aquatic and terrestrial ecosystems. The research is interdisciplinary and pursued through partnerships within the U.S. Geological Survey and with national, international...

U.S. Geological Survey, 2019, Columbia Environmental Research Center: U.S. Geological Survey Fact Sheet 2019–3040, 2 p., https://doi.org/10.3133/fs20193040.

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Year Published: 2019

Riverscape correlates for distribution of threatened spotfin chub Erimonax monachus in the Tennessee River Basin, USA

Globally, aquatic biodiversity is imperiled at an increasing rate, especially in diversity hotspots such as the southeastern USA. The spotfin chub Erimonax monachus is a federally threatened minnow with a disjunct distribution resulting from numerous impoundments on the Tennessee River and its tributaries in the heart of the southeastern...

Perkin, Joshuah S.; Gibbs, W. Keith; Ridgway, Josey Lee; Cook, S. Bradford

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Year Published: 2019

Targeting wildlife crime interventions through geographic profiling

Seeing an animal hanging lifelessly from a snare is a heart-wrenching experience. Knowing that most animals caught in snares are left to rot without being used for meat or any other purpose might be worse. Over an eight-year period, 2001–2009, we recorded 10,231 incidents of illegal hunting in a wildlife conservation area in southeastern Zimbabwe...

Romanach, Stephanie; Faulkner, Sally C.; Stevens, Michael C.A.; Lindsey, Peter A.; Le Comber, Steven C.

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Year Published: 2019

Climatic controls on the distribution of foundation plant species in coastal wetlands of the conterminous United States: Knowledge gaps and emerging research needs

Foundation plant species play a critical role in coastal wetlands, often modifying abiotic conditions that are too stressful for most organisms and providing the primary habitat features that support entire ecological communities. Here, we consider the influence of climatic drivers on the distribution of foundation plant species within coastal...

Osland, Michael; Grace, James; Guntenspergen, Glenn; Thorne, Karen; Carr, Joel; Feher, Laura

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Year Published: 2019

Fire disturbance influences endangered Cape Sable Seaside Sparrow (Ammopiza maritima mirabilis) relative bird count

Periodicity of fire disturbance is a known driver of ecosystem function and is reported as important in both promoting and maintaining viable breeding habitat for the endangered Cape Sable Seaside Sparrow (Ammospiza maritima mirabilis; CSSS). In south Florida, the CSSS serves as a fine‐scale indicator of the marl and mixed‐marl prairie communities...

Benscoter, Allison; Beerens, James (Contractor); Pearlstine, Leonard G.; Romanach, Stephanie

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Year Published: 2019

Groundwater availability in the Ozark Plateaus aquifer system

Executive SummaryThe study described in this report, initiated by the U.S. Geological Survey in 2014, was designed to evaluate fresh groundwater resources within the Ozark Plateaus, central United States, as an area within a broader national assessment of groundwater availability. The goals of the Ozark study were to evaluate historical effects of...

Clark, Brian R.; Duncan, Leslie L.; Knierim, Katherine J.
Clark, B.R., Duncan, L.L., and Knierim, K.J., 2019, Groundwater availability in the Ozark Plateaus aquifer system: U.S. Geological Survey Professional Paper 1854, 82 p., https://doi.org/10.3133/pp1854.

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Year Published: 2019

Tropical cyclones and the organization of mangrove forests: A review

Background Many mangrove ecosystems are periodically exposed to high velocity winds and surge from tropical cyclones and often recover with time and continue to provide numerous societal benefits in the wake of storm events. Scope This review focuses on the drivers and disturbance mechanisms (visible and functional) that tropical cyclones of...

Krauss, Ken; Osland, Michael

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Year Published: 2019

Catalog of microscopic organisms of the Everglades, part 2—The desmids of the Arthur R. Marshall Loxahatchee National Wildlife Refuge

The Arthur R. Marshall Loxahatchee National Wildlife Refuge (refuge), Boynton Beach, Florida, contains approximately 147,000 acres southeast of Lake Okeechobee. Water quality in the interior portion of the refuge is strongly influenced by rainfall, resulting in slightly acidic waters with low dissolved ions. Desmids, a unique, ornate group of...

Rosen, Barry H.; Stahlhut, Katherine N.; Hall, John D.
Rosen, B.H., Stahlhut, K.N., and Hall, J.D., 2019, Catalog of microscopic organisms of the Everglades, part 2—The desmids of the Arthur R. Marshall Loxahatchee National Wildlife Refuge: U.S. Geological Survey Scientific Investigations Report 2019–5074, 277 p., https://doi.org/10.3133/sir20195074.

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Year Published: 2019

Withdrawal and consumption of water by thermoelectric power plants in the United States, 2015

The U.S. Geological Survey has developed models to estimate thermoelectric water use based on linked heat and water budgets. The models produced plant-level withdrawal and consumption estimates using consistent methods for 1,122 water-using, utility-scale thermoelectric power plants in the United States for 2015. Total estimated withdrawal for...

Harris, Melissa A.; Diehl, Timothy H.
Harris, M.A., and Diehl, T.H., 2019, Withdrawal and consumption of water by thermoelectric power plants in the United States, 2015: U.S. Geological Survey Scientific Investigations Report 2019–5103, 15 p., https://doi.org/10.3133/sir20195103.

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Year Published: 2019

Water for Long Island: Now and for the future

Do you ever wonder where your water comes from? If you live in Nassau or Suffolk County, the answer is, groundwater. Groundwater is water that started out as precipitation (rain and snow melt) and seeped into the ground. This seepage recharges the freshwater stored underground, in the spaces between the grains of sand and gravel in what are...

Masterson, John; Breault, Robert
Masterson, J.P., and Breault, R., 2019, Water for Long Island—Now and for the future: U.S. Geological Survey Fact Sheet 2019–3052, 2 p., https://doi.org/10.3133/fs20193052.

Filter Total Items: 216
Before and after photos showing destroyed pier house and antebellum home
December 31, 2005

Before and after photos showing destroyed pier house and classic home

In the top image, taken in 1998, notice the pier, pier house, and the antebellum house. The bottom image shows the same location on August 31, 2005, two days after Hurricane Katrina made landfall. This photo shows the complete destruction of these landmarks.

Photo sets of Waveland, Mississippi, pre- and post-Katrina
December 31, 2005

Photo sets of Waveland, Mississippi, pre- and post-Katrina

The top image was taken off the coast of Bay St. Louis, Mississippi, in July 1998 by researchers at the University of New Orleans. In this image, notice the large multi-story houses, some of which are built on stilts to protect the homes from flooding. The bottom image shows the same location on August 31, 2005, two days after landfall of Hurricane Katrina. The storm surge

...
Photo sets of Waveland, Mississippi, pre- and post-Katrina
December 31, 2005

Photo sets of Waveland, Mississippi, pre- and post-Katrina

The top image, taken off the coast of Waveland, Mississippi, in July 1998, shows several large oceanfront homes, and thick wooded vegetation bordering the sandy beach. The bottom image shows the same location on August 31, 2005, two days after landfall of Hurricane Katrina. All of the houses have been destroyed, and the tennis court behind the house on the far right is no

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Image: Decorah, Iowa
September 20, 2005

Decorah, Iowa

Views, looking west, to downtown Decorah, Iowa, from a city park bluff on east side of town.  Downtown courthouse tower and church spires are prominent.

Image: Decorah, Iowa
September 20, 2005

Decorah, Iowa

Views, looking west, to downtown Decorah, Iowa, from a city park bluff on east side of town.  Downtown courthouse tower and church spires are prominent.  

 

Image: Decorah, Iowa
September 20, 2005

Decorah, Iowa

Views, looking west, to downtown Decorah, Iowa, from a city park bluff on east side of town.  Downtown courthouse tower and church spires are prominent.  

 

Satellite image showing damage from Katrina.
September 5, 2005

Hurricane Katrina - Before and After in New Orleans

These Landsat images show the damage that New Orleans, Louisiana, received as a result of Hurricane Katrina.

Picture of a road with setting sun
July 1, 2002

Road shot with setting sun in Iowa

A road shot with the setting sun in the background. The photograph was taken on a Land Cover Trends field trip in Iowa.

A picture of a future development billboard
July 1, 2002

A future development billboard in an abandoned agriculture field

A future development billboard showing plots available. In the background there is an abandoned agriculture field. The picture was taken in Iowa during a Land Cover Trends field trip.

A customized extraction system used for the collection and extraction of large volumes of water in the Chesapeake Bay watershed
January 1, 0000

A customized extraction system used for collection and extraction

Environmental Chemistry Laboratory — Columbia, Missouri. Customized extraction system

Flooding and Train Derailment in Northwest Iowa

The Rock River flooded parts of northwest Iowa after several days of heavy rainfall in June 2018. A train carrying crude oil derailed over a flooded bridge south of Doon on June 22, prompting evacuations of nearby homes. Landsat 8 images from June 1 and June 24 show the extent of the flooding.

Filter Total Items: 246
USGS
June 1, 2006

As another potentially busy hurricane season approaches, U.S. Geological Survey (USGS) scientists are sharing data and photos with the public to stress the importance of evacuation and storm preparedness.

USGS
November 9, 2005

In response to public concern for the water quality of Lake Pontchartrain following Hurricane Katrina, the U.S. Geological Survey (USGS), in collaboration with the Louisiana Department of Environmental Quality (DEQ), U.S. Environmental Protection Agency (EPA)...

USGS science for a changing world logo
November 9, 2005

In response to public concern for the water quality of Lake Pontchartrain following Hurricane Katrina, the U.S. Geological Survey (USGS), in collaboration with the Louisiana Department of Environmental Quality (DEQ), U.S. Environmental Protection Agency (EPA), National Oceanic and Atmospheric Administration (NOAA), and the Food and Drug Administration (FDA), is conducting intensive studies.

USGS
November 1, 2005

Hurricanes Katrina and Rita transformed some 100 square miles of marsh to open water in southeastern Louisiana, according to preliminary estimates by U.S. Geological Survey (USGS) based on an analysis of Landsat satellite data from September and October.

USGS science for a changing world logo
November 1, 2005

Hurricanes Katrina and Rita transformed some 100 square miles of marsh to open water in southeastern Louisiana, according to preliminary estimates by U.S. Geological Survey (USGS) based on an analysis of Landsat satellite data from September and October.

USGS
September 24, 2005

The U.S. Geological Survey today is alerting state and federal agencies to the increased potential for landslides on September 24-28 in the Ozark-Ouachita mountainous regions of Arkansas, Oklahoma and Missouri due to anticipated heavy rainfall from Hurricane Rita.

USGS science for a changing world logo
September 24, 2005

The U.S. Geological Survey today is alerting state and federal agencies to the increased potential for landslides on September 24-28 in the Ozark-Ouachita mountainous regions of Arkansas, Oklahoma and Missouri due to anticipated heavy rainfall from Hurricane Rita.

USGS science for a changing world logo
September 20, 2005

In a cooperative research program, the USGS, NASA and the U.S. Army Corps of Engineers (USACE) are using airborne laser mapping systems to quantify coastal change along the entire coastline affected by Hurricane Katrina (http://coastal.er.usgs.gov/hurricanes/katrina/).

USGS
September 15, 2005

The USGS announced today (Sept. 15, 2005) that the National Geospatial Technical Operations Center (NGTOC) will be located in the city of Denver. The NGTOC will consolidate the functions and operations currently performed in four USGS mapping centers (Menlo Park, Calif.; Rolla, Mo.; Denver, Colo.; and Reston, Va.) and other distributed sites to one location.

USGS
September 14, 2005

U.S. Geological Survey scientists report that preliminary analysis of satellite data indicate Hurricane Katrina caused substantial marsh loss in St. Bernard and Plaquemines parishes.

USGS science for a changing world logo
September 14, 2005

U.S. Geological Survey scientists report that preliminary analysis of satellite data indicate Hurricane Katrina caused substantial marsh loss in St. Bernard and Plaquemines parishes.

USGS science for a changing world logo
September 6, 2005

The USGS is releasing today a 25-minute videotape of footage showing coastal impacts resulting from Hurricane Katrina along the coastline of the northern Gulf of Mexico.