Unified Interior Regions

Louisiana

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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Filter Total Items: 125
Date published: April 17, 2020
Status: Active

Critical Coastal Habitats: Sustainability, Restoration and Forecasting

USGS WARC scientists are monitoring both the long- and short-term effects of coastal restoration efforts on ecosystem health in coastal habitats of Louisiana’s Barataria Basin.

Date published: April 13, 2020
Status: Active

Water Quality in Lake Pontchartrain and western Mississippi Sound during openings of Bonnet Carré Spillway

The Bonnet Carré Spillway, located about 28 miles northwest of New Orleans, Louisiana, was constructed in the early 1930s as part of an integrated flood-control structure for the lower Mississippi River Plain. The spillway is designed to divert water from the Mississippi River into Lake Pontchartrain, thus relieving pressure on levees downstream. Opening of the spillway occurs when measured...

Date published: February 26, 2020
Status: Active

Impacts of coastal and watershed changes on upper estuaries: causes and implications of wetland ecosystem transitions along the US Atlantic and Gulf Coasts

Estuaries and their surrounding wetlands are coastal transition zones where freshwater rivers meet tidal seawater.  As sea levels rise, tidal forces move saltier water farther upstream, extending into freshwater wetland areas. Human changes to the surrounding landscape may amplify the effects of this tidal extension, impacting the resiliency and function of the upper estuarine wetlands. One...

Contacts: Ken Krauss, Ph.D., Gregory Noe, Camille LaFosse Stagg, Ph.D., Hongqing Wang, Ph.D., Eric J Ward, Ph.D., Jamie A. Duberstein, William H. Conner, Zhaohua Dai, Thomas L. O'Halloran
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
Date published: August 15, 2019
Status: Active

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Date published: July 25, 2019
Status: Active

Geospatially Enabled, Web-based Habitat Reporting Tool to Support Monitoring and Assessment along the Louisiana Shore

The State of Louisiana's Barrier Island Comprehensive Monitoring (BICM) program has partnered with USGS to developed two habitat classifications schemes for monitoring barrier island habitats and habitats in beach-dune systems along the mainland. These schemes builds upon previous BICM habitat mapping efforts.

Date published: June 27, 2019
Status: Active

Model Improvements for Louisiana’s 2023 Coastal Master Plan

The Louisiana Coastal Protection and Restoration Authority’s Coastal Master Plan is a blueprint for responding to environmental changes. As part of the agency’s continued engagement, USGS supports model developments and improvements for the 2023 Coastal Master Plan.

Filter Total Items: 28
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: 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.

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: November 29, 2016

Louisiana Current Water Conditions

See Current Water Conditions for Louisiana using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality.

Date published: April 20, 2016

Coastal Information Management System (CIMS)

WARC's Advanced Applications Team is responsible for data management and application development to support the biological monitoring components of coastal restoration projects in the Louisiana Coastal Protection and Restoration Authority portfolio. 

Date published: April 20, 2016

Structures Data

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations....

Date published: April 19, 2016

The United States Interagency Elevation Inventory (USIEI)

The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and...

Date published: April 19, 2016

Elevation Data

The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), 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.

Date published: April 18, 2016

Coastal and Marine Geology Video and Photography Portal

This portal contains U.S. Geological Survey (USGS) video and photography of the seafloor off of coastal California and Massachusetts, and aerial imagery of the coastline along segments of the Gulf of Mexico and mid-Atlantic coasts. These data were collected as part of several USGS Coastal and Marine Geology Program Seafloor Mapping projects and Hurricane and Extreme Storm research.

Filter Total Items: 21
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Year Published: 2016

Physiology of the invasive apple snail Pomacea maculata: tolerance to low temperatures

Apple snails of the genus Pomacea native to South America have invaded and become established in Europe, Asia, and the United States. Both the channeled apple snail Pomacea canaliculata and the island apple snail Pomacea maculata have been reported in the United States. The two species are difficult to distinguish using morphological characters,...

Deaton, Lewis E.; Schmidt, William ; Leblanc, Brody ; Carter, Jacoby; Mueck, Kristy ; Merino, Sergio
Deaton, L.E., Schmidt, W., LeBlanc, B., Carter, J., Mueck, K., and Merino, S., 2016, Physiology of the invasive apple snail Pomacea maculata: tolerance to low temperatures: Journal of Shellfish Research, v. 35, no. 1, p. 207-210, http://dx.doi.org/10.2983/035.035.0122.

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Year Published: 2013

Landscape-level estimation of nitrogen removal in coastal Louisiana wetlands: potential sinks under different restoration scenarios

Coastal eutrophication in the northern Gulf of Mexico (GOM) is the primary anthropogenic contributor to the largest zone of hypoxic bottom waters in North America. Although biologically mediated processes such as denitrification (Dn) are known to act as sinks for inorganic nitrogen, it is unknown what contribution denitrification makes to...

Rivera-Monroy, Victor H.; Branoff, Benjamin; Meselhe, Ehab; McCorquodale, Alex; Dortch, Mark; Steyer, Gregory D.; Visser, Jenneke; Wang, Hongqing
Landscape-level estimation of nitrogen removal in coastal Louisiana wetlands: potential sinks under different restoration scenarios; 2013; Article; Journal; Journal of Coastal Research; Rivera-Monroy, Victor H.; Branoff, Benjamin; Meselhe, Ehab; McCorquodale, Alex; Dortch, Mark; Steyer, Gregory D.; Visser, Jenneke; Wang, Hongqing

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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 C.; 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

Estimating occupancy dynamics in an anuran assemblage from Louisiana, USA

Effective monitoring programs are designed to track changes in the distribution, occurrence, and abundance of species. We developed an extension of Royle and Kéry's (2007) single species model to estimate simultaneously temporal changes in probabilities of detection, occupancy, colonization, extinction, and species turnover using data on...

Walls, Susan C.; Waddle, J. Hardin; Dorazio, Robert M.

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Year Published: 2007

Characterization of flood sediments from Hurricanes Katrina and Rita and potential implications for human health and the environment

The flooding in the greater New Orleans, La., area that resulted from Hurricanes Katrina and Rita in August and September 2005 left behind accumulations of sediments up to many centimeters thick on streets, lawns, parking lots, and other flat surfaces (fig. 1). During the flood dewatering and subsequent cleanup, there were concerns that these...

Plumlee, Geoffrey S.; Foreman, William T.; Griffin, Dale W.; Lovelace, John K.; Meeker, Gregory P.; Demas, Charles R.
Characterization of flood sediments from Hurricanes Katrina and Rita and potential implications for human health and the environment: Chapter 7I in Science and the storms-the USGS response to the hurricanes of 2005; 2007; CIR; 1306-7I; Science and the storms-the USGS response to the hurricanes of 2005 (Circular 1306); Plumlee, Geoffrey S.; Foreman, William T.; Griffin, Dale W.; Lovelace, John K.; Meeker, Gregory P.; Demas, Charles R.

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Year Published: 2006

USGS environmental characterization of flood sediments left in the New Orleans area after Hurricanes Katrina and Rita, 2005--Progress Report

Introduction: The flooding in the greater New Orleans area that resulted from Hurricanes Katrina and Rita in September, 2005, left behind accumulations of sediments up to many centimeters thick on streets, lawns, parking lots, and other flat surfaces. These flood sediment deposits have been the focus of extensive study by the US Environmental...

Plumlee, Geoffrey S.; Meeker, Gregory P.; Lovelace, John K.; Rosenbauer, Robert J.; Lamothe, Paul J.; Furlong, Edward T.; Demas, Charles R.
USGS environmental characterization of flood sediments left in the New Orleans area after Hurricanes Katrina and Rita, 2005--Progress Report; 2006; OFR; 2006-1023; Plumlee, Geoffrey S.; Meeker, Gregory P.; Lovelace, John K.; Rosenbauer, Robert J.; Lamothe, Paul J.; Furlong, Edward T.; Demas, Charles R.

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Year Published: 1998

Water use and quality of fresh surface-water resources in the Barataria-Terrebonne Basins, Louisiana

Approximately 170 Mgal/d (million gallons per day) of ground- and surface-water was withdrawn from the Barataria-Terrebonne Basins in 1995. Of this amount, surface water accounted for 64 percent ( 110 MgaVd) of the total withdrawal rates in the basins. The largest surface-water withdrawal rates were from Bayou Lafourche ( 40 Mgal/d), Bayou Boeuf...

Johnson-Thibaut, Penny M.; Demcheck, Dennis K.; Swarzenski, Christopher M.; Ensminger, Paul A.
Water use and quality of fresh surface-water resources in the Barataria-Terrebonne Basins, Louisiana; 1998; OFR; 98-632; Johnson-Thibaut, Penny M.; Demcheck, Dennis K.; Swarzenski, Christopher M.; Ensminger, Paul A.

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Year Published: 1990

National water summary 1987: Hydrologic events and water supply and use

Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the...

Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.
National water summary 1987: hydrologic events and water supply and use; 1990; WSP; 2350; Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.

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Year Published: 1987

Pumpage of water in Louisiana, 1985

Lurry, Dee L.
Attribution: Water Resources
Pumpage of water in Louisiana, 1985; 1987; WRI; 87-4059; Lurry, Dee L.

Filter Total Items: 118
Satellite image showing the land mass difference for an island.
December 31, 2017

Global Fiducials East Timbalier Island, LA

Paired images for East Timbalier Island (Louisiana) showing land mass difference over time.

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

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.

Filter Total Items: 144
TNMCorps Mapping Challenge: City/Town Halls in LA, MS & AL
May 21, 2020

This challenge is SO CLOSE  to being finished!  Louisiana and Mississippi are looking nice, but Alabama needs some attention.  See our spatial analysis for tips. 

TNMCorps Mapping Challenge: City/Town Halls in LA, MS & AL
May 14, 2020

This challenge is nearing completion with over 100 edits since last week!  This includes ~60 points new points.  See our spatial analysis for tips on remaining communities. 

TNMCorps Mapping Challenge: City/Town Halls in LA, MS & AL
May 7, 2020

This challenge is moving along nicely with another 100 edits in the last week!  This includes more than 20 new points that were added.  See our spatial overlay analysis for tips on remaining communities. 

 

TNMCorps Mapping Challenge: City/Town Halls in LA, MS & AL
April 30, 2020

These maps are filling in with another 100 points added since last week!

TNMCorps Mapping Challenge: City/Town Halls in LA, MS & AL
April 23, 2020

Almost 250 points have come during the last week! That's IMPRESSIVE!

TNMCorps Mapping Challenge: City/Town Halls in LA, MS & AL
April 14, 2020

TNMCorps Mapping Challenges approach the Gulf of Mexico with a new challenge for city/town halls in Louisiana, Mississippi, and Alabama!

Potential coastal change impacts for Tropical Storm Barry - July 11, 2019
July 11, 2019

To better understand storm impacts on the coast, the USGS National Assessment of Storm-Induced Coastal Change Hazards group is responding to Tropical Storm Barry.

Phylogenetic tree representing bacterial OTUs
March 6, 2019

Astrangia poculata, the northern star coral, is a temperate scleractinian coral that has been documented on the Atlantic Coast of the United States from Maine to Florida, as well as the Gulf Coasts of Florida, Louisiana, and Texas.

CGG RESOLVE in flight
December 13, 2018

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.  

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