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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.
Where: Westdale Heights Academic Magnet school, Baton Rouge, LA
Background: Dennis Demcheck has been volunteering at the public school since 2012, discussing bird identification, migration patterns, and drawing birds. The presentation emphasized scientific observation and the importance of accurate data collection.
Partners/Stakeholders: None. Dennis talked to...
The maculata apple snail (Pomacea maculata) has invaded many coastal and some inland areas in south Louisiana. Reports have indicated that the freshwater snails have significantly reduced the amount of submerged aquatic vegetation (SAV) and floating leaved vegetation (FLV) available for waterfowl and other wildlife.
LOWER MISSISSIPPI-GULF WSC - BATON ROUGE SEDIMENT LAB PRICE LIST - 2018 FISCAL YEAR
(Effective date will begin with samples received
by the Laboratory after October 1, 2017)...
The Sparta aquifer is Union County's only source of municipal and industrial ground water. Since development began in the early 1920's ground-water levels have declined more than 390 feet in some areas. As a result, Union was among five southern Arkansas counties designated as the state's first "Critical Ground Water Area" in 1996.
Short Title: Sparta Recovery Project
Project Chief: Anna Nottmeier
Cooperators: Union County Water Conservation Board
Project Time Frame: 2002 - present
The Sparta aquifer is a confined aquifer of great regional importance and is a major water resource for municipal...
Links to Sources of Water Information
The U.S. Geological Survey (USGS) investigates the occurrence, quantity, quality, distribution, and movement of surface and underground waters and disseminates the data to the public, State and local governments, public and private utilities, and other Federal agencies involved with managing water resources
The map to the left allows you to...
To view the interactive map of the Gulf of Mexico Coastal Monitoring Sites click here.
SPARROW, a modeling tool for the regional interpretation of water-quality monitoring data. The model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and aquatic transport. SPARROW empirically estimates the origin and fate of contaminants in river networks and quantifies...
Flooding is a concern for everyone in Louisiana. Floods demand immediate and decisive action by governmental entities, businesses, and individual citizens, all of whom have to make critical decisions that directly impact the extent, duration, and mitigation of losses resulting from flooding. How high will the water get? How long will the flood last? What areas will be affected? What roads will...
1 June 2010
Hurricane season starts today, and the USGS Lower Mississippi Gulf Water Science Center is committed to collecting and providing the most up-to-date information before, during, and after the storms that are sure to come our way. When a hurricane or tropical storm is approaching, accurate and timely storm data are crucial in making good decisions regarding personal safety and...
USGS Information and Links
Hurricane Hazards—A National Threat (fact sheet)
USGS Natural Hazards - Hurricanes
Hurricane Forecast Information
National Hurricane Center—(NWS)
Current Tropical Forecast Information
GOES-8 Atlantic Infrared Imagery
GOES-8 Atlantic Visible Imagery
Earth Scan Laboratory—(LSU)
USGS Louisiana Coastal Sites
Hurricane season starts today, and the USGS Lower Mississippi Gulf Water Science Center is committed to collecting and providing the most up-to-date information before, during, and after the storms that are sure to come our way. When a hurricane or tropical storm is approaching, accurate and timely storm data is crucial in making good decisions regarding...
The National Water Information System (NWIS) web application provides access to surface-water, groundwater, water-quality, and water-use data collected at approximately 1.5 million sites across all 50 states.
The National Water Information System (NWIS) Mapper provides access to water-resources data at over 1.5 million sites across the U.S., including current and historical data. Users can search by site type, data type, site number, or place.
See Current Water Conditions for Louisiana using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality.
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.
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.
Boundaries data or governmental units represent major civil areas including states, counties, Federal, and Native American lands, and incorporated places such as cities and towns.
The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) are used to portray surface water on The National Map.
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 Fall.
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.
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.
Orthoimagery data typically are high resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a planimetric map. The National Map offers public domain, 1-meter orthoimagery for the conterminous United States with many urban areas and other locations at 2-foot or finer resolution.
The National Map offers a collection of small-scale datasets, most of which are at 1:1,000,000. The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.
Shreveport Area—Caddo and Bossier Parishes Flood Map
Amite River Basin
River and Coastal Forecast Information
Lower Mississippi River Forecast Center, Slidell, Louisiana—(NWS)
June 1 marks the beginning of hurricane season. Should storms arrive on the Louisiana coast, the people in coastal communities across the State, along with many Federal, State, and local agencies will need to know how the storms are affecting the coastal and low-lying areas.The USGS maintains an extensive network of coastal gages that provides critical time-sensitive water level.
Subsurface geometry of the Mississippi Embayment Regional Aquifer Study (MERAS)
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.
This portal is a “go to” source for maps related to ocean and coastal mapping. Information is organized by geography or region, by theme, and by the year data was published.
River and Coastal Forecast Information
Mississippi and Ohio River 7-Day Summary and Forecast
The Union County Water Conservation Board with funding from the U.S. Environmental Protection Agency began a study in 2003 with the U.S. Geological Survey, the Union County Conservation District, Burns & McDonnell to monitor the impact of water-level recovery and water-quality characteristics of the Sparta aquifer system in southern Arkansas and northern Louisiana.
Land area change in coastal Louisiana (1932 to 2016)
Coastal Louisiana wetlands are one of the most critically threatened environments in the United States. These wetlands are in peril because Louisiana currently experiences greater coastal wetland loss than all other States in the contiguous United States combined. The analyses of landscape change presented here have utilized historical surveys,...Couvillion, Brady R.; Beck, Holly; Schoolmaster, Donald; Fischer, Michelle
Prevalence of Batrachochytrium dendrobatidis and B. salamandrivorans in the Gulf Coast Waterdog, Necturus beyeri, from Southeast Louisiana, USA
The globally widespread amphibian fungal pathogen Batrachochytrium dendrobatidis (Bd) has been linked to amphibian declines worldwide (Lips et al. 2006; Skerratt et al. 2007). In Louisiana, USA, Bd has been found in several amphibian species (Chatfield et al. 2012; Rothermel et al. 2008), but to our knowledge no population-level die-offs have been...Glorioso, Brad M.; Waddle, Hardin; Richards-Zawacki, Corinne L.
Nocturnal arboreality in snakes in the swamplands of the Atchafalaya Basin of south-central Louisiana and Big Thicket National Preserve of Southeast Texas
The southeastern United States is home to a diverse assemblage of snakes, but only one species, the Rough Greensnake (Opheodrys aestivus), is considered specialized for a predominantly arboreal lifestyle. Other species, such as Ratsnakes (genus Pantherophis) and Ribbonsnakes/Gartersnakes (genus Thamnophis), are widely known to climb into...Glorioso, Brad M.; Waddle, Hardin
Macroclimatic change expected to transform coastal wetland ecosystems this century
Coastal wetlands, existing at the interface between land and sea, are highly vulnerable to climate change. Macroclimate (for example, temperature and precipitation regimes) greatly influences coastal wetland ecosystem structure and function. However, research on climate change impacts in coastal wetlands has concentrated primarily on sea-level...Gabler, Christopher A.; Osland, Michael J.; Grace, James B.; Stagg, Camille L.; Day, Richard H.; Hartley, Stephen B.; Enwright, Nicholas M.; From, Andrew; McCoy, Meagan L.; McLeod, Jennie L.
A modeling study of the impacts of Mississippi River diversion and sea-level rise on water quality of a deltaic estuary
Freshwater and sediment management in estuaries affects water quality, particularly in deltaic estuaries. Furthermore, climate change-induced sea-level rise (SLR) and land subsidence also affect estuarine water quality by changing salinity, circulation, stratification, sedimentation, erosion, residence time, and other physical and ecological...Wang, Hongqing; Chen, Qin; Hu, Kelin; LaPeyre, Megan K.
Determining the spatial variability of wetland soil bulk density, organic matter, and the conversion factor between organic matter and organic carbon across coastal Louisiana, U.S.A.
Soil bulk density (BD), soil organic matter (SOM) content, and a conversion factor between SOM and soil organic carbon (SOC) are often used in estimating SOC sequestration and storage. Spatial variability in BD, SOM, and the SOM–SOC conversion factor affects the ability to accurately estimate SOC sequestration, storage, and the benefits (e.g.,...Wang, Hongqing; Piazza, Sarai C.; Sharp, Leigh A.; Stagg, Camille L.; Couvillion, Brady R.; Steyer, Gregory D.; McGinnis, Thomas E.
Wetland shoreline recession in the Mississippi River Delta from petroleum oiling and cyclonic storms
We evaluate the relative impact of petroleum spill and storm surge on near-shore wetland loss by quantifying the lateral movement of coastal shores in upper Barataria Bay, Louisiana (USA), between June 2009 and October 2012, a study period that extends from the year prior to the Deepwater Horizon spill to 2.5 years following the spill. We document...Rangoonwala, Amina; Jones, Cathleen E.; Ramsey, Elijah W.
Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974
The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...Frank, David G.
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
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
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.
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.
This page contains the weekly highlights from the Lower Mississippi-Gulf Water Science Center for the week of 9/112017 - 9/15/2017! Please take a look and see what we have been up to!
Pre- and post-storm photo comparisons using NOAA imagery
A non-native insect infestation may not be the only factor involved in the ongoing die-back of a marsh grass in the Mississippi River’s “bird foot delta,” the ecologically and economically important part of coastal Louisiana where the river meets the Gulf of Mexico.
A carbonatite here, a glacial moraine there, a zig-zagging fault or two, even a behemoth of a batholith. The geology of the 50 States is an enormous patchwork of varied forms, beautiful in their variance but challenging to present as a single map.
Lack of Major Hurricanes Since 2008 Is Likely the Main Reason
Larger-than-average low and no oxygen area may affect the region’s shrimp fisheries
Decades or longer may be needed to fully assess the effects of unconventional oil and gas production on the quality of groundwater used for drinking water in Arkansas, Louisiana, and Texas
On its 205th anniversary, Louisiana still rocks.
USGS also estimates 4 billion barrels of oil and 2 billion barrels of natural gas liquids in the two formations.
New research shows how river diversions may change water quality in estuaries.
Changes in rainfall and temperature are predicted to transform wetlands in the Gulf of Mexico and around the world within the century, a new study from the USGS and the University of Texas Rio Grande Valley concludes.
A regional assessment of untreated groundwater in the Coastal Lowlands aquifer system in the southeastern United States is now available from the U.S. Geological Survey.