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Featured Science

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Hardened Gages—Built to Survive

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 property...
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Hardened Gages—Built to Survive

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 property...
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USGS Hurricane-related Publications for Louisiana

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) GOES-8 Atlantic Infrared Imagery GOES-8 Atlantic Visible Imagery GOES-8 Atlantic Color Infrared...
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USGS Hurricane-related Publications for Louisiana

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) GOES-8 Atlantic Infrared Imagery GOES-8 Atlantic Visible Imagery GOES-8 Atlantic Color Infrared...
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Forecast Information and Imagery

River and Coastal Forecasts The USGS is not a forecasting agency, but the National Weather Service (NWS) is, and they make extensive use of the data we collect in their effort to provide you with the most accurate and up-to-date forecasts of many Louisiana rivers and streams, and weather along the coast. The links below will provide you with direct access to the NWS forecasts for different areas...
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Forecast Information and Imagery

River and Coastal Forecasts The USGS is not a forecasting agency, but the National Weather Service (NWS) is, and they make extensive use of the data we collect in their effort to provide you with the most accurate and up-to-date forecasts of many Louisiana rivers and streams, and weather along the coast. The links below will provide you with direct access to the NWS forecasts for different areas...
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Streamflow Alteration Assessments to Support Bay and Estuary Restoration in Gulf States

Human alteration of waterways has impacted the minimum and maximum streamflows in more than 86% of monitored streams nationally and may be the primary cause for ecological impairment in river and stream ecosystems. Restoration of freshwater inflows can positively affect shellfish, fisheries, habitat, and water quality in streams, rivers, and estuaries. Increasingly, state and local decision-makers...
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Streamflow Alteration Assessments to Support Bay and Estuary Restoration in Gulf States

Human alteration of waterways has impacted the minimum and maximum streamflows in more than 86% of monitored streams nationally and may be the primary cause for ecological impairment in river and stream ecosystems. Restoration of freshwater inflows can positively affect shellfish, fisheries, habitat, and water quality in streams, rivers, and estuaries. Increasingly, state and local decision-makers...
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Mississippi Alluvial Plain (MAP): Water Availability Study

The Mississippi Alluvial Plain is one of the most productive agricultural regions in the Nation and depends on groundwater for irrigation. The MAP area constitutes the third largest area of irrigated cropland in the United States. The area is approximately 29,000 square miles (19 million acres) and includes parts of the States of Missouri, Tennessee, Arkansas, Mississippi, and Louisiana. The U.S...
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Mississippi Alluvial Plain (MAP): Water Availability Study

The Mississippi Alluvial Plain is one of the most productive agricultural regions in the Nation and depends on groundwater for irrigation. The MAP area constitutes the third largest area of irrigated cropland in the United States. The area is approximately 29,000 square miles (19 million acres) and includes parts of the States of Missouri, Tennessee, Arkansas, Mississippi, and Louisiana. The U.S...
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Water Use Trends in Alabama

Since 1950 when the U.S. Geological Survey (USGS) first conducted water-use compilations, important changes in water use have occurred in Alabama. The early part of the history (1950 to 1980) showed a steady increase in water use. During this time, the expectation was that, as the population increased, so would water use. Contrary to this expectation, reported water withdrawals declined in 1985...
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Water Use Trends in Alabama

Since 1950 when the U.S. Geological Survey (USGS) first conducted water-use compilations, important changes in water use have occurred in Alabama. The early part of the history (1950 to 1980) showed a steady increase in water use. During this time, the expectation was that, as the population increased, so would water use. Contrary to this expectation, reported water withdrawals declined in 1985...
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Lower Tennessee River (LTEN) Basin Study

Welcome....the Lower Tennessee River Basin in Tennessee, Alabama, Georgia, Kentucky, and Mississippi is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program.The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources...
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Lower Tennessee River (LTEN) Basin Study

Welcome....the Lower Tennessee River Basin in Tennessee, Alabama, Georgia, Kentucky, and Mississippi is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program.The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources...
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Ozark Groundwater Availability Study

The U.S. Geological Survey's Groundwater Resources Program (GWRP) is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in water use and climate may affect those resources. Assessments will be completed for the Nation's principal aquifer systems to help characterize how...
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Ozark Groundwater Availability Study

The U.S. Geological Survey's Groundwater Resources Program (GWRP) is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in water use and climate may affect those resources. Assessments will be completed for the Nation's principal aquifer systems to help characterize how...
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Mobile River Basin Study Design

The Mobile River Basin study is one of several NAWQA studies that began in Federal fiscal year 1997 (October 1996). Study planning and design, and analysis of existing data will be done during the first 2 years, which is consistent with all NAWQA studies. After the 2-year planning period, surface- and ground-water and biological data will be collected intensively for 3 years during a high...
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Mobile River Basin Study Design

The Mobile River Basin study is one of several NAWQA studies that began in Federal fiscal year 1997 (October 1996). Study planning and design, and analysis of existing data will be done during the first 2 years, which is consistent with all NAWQA studies. After the 2-year planning period, surface- and ground-water and biological data will be collected intensively for 3 years during a high...
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Updating Low-Flow Statistics at USGS Streamgages and Regionalization of Selected Low-Flow Characteristics for Alabama Streams

As part of their mission to protect public health and aquatic ecosystems, Alabama state agencies need accurate and representative streamflow statistics to establish realistic and applicable criteria for both water quality and water quantity (fig. 1). Historically, low-flow statistics, such as the annual minimum 7-day average flow that likely will occur, on average, once every 10 years (7Q10), have...
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Updating Low-Flow Statistics at USGS Streamgages and Regionalization of Selected Low-Flow Characteristics for Alabama Streams

As part of their mission to protect public health and aquatic ecosystems, Alabama state agencies need accurate and representative streamflow statistics to establish realistic and applicable criteria for both water quality and water quantity (fig. 1). Historically, low-flow statistics, such as the annual minimum 7-day average flow that likely will occur, on average, once every 10 years (7Q10), have...
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Ecological limit functions relating fish community response to hydrologic departures of the ecological flow regime in the Tennessee River basin, United States

Ecological limit functions relating streamflow and aquatic ecosystems remain elusive despite decades of research. We investigated functional relationships between species richness and changes in streamflow characteristics at 662 fish sampling sites in the Tennessee River basin. To learn more visit: http://onlinelibrary.wiley.com/doi/10.1002/eco.1460/pdf
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Ecological limit functions relating fish community response to hydrologic departures of the ecological flow regime in the Tennessee River basin, United States

Ecological limit functions relating streamflow and aquatic ecosystems remain elusive despite decades of research. We investigated functional relationships between species richness and changes in streamflow characteristics at 662 fish sampling sites in the Tennessee River basin. To learn more visit: http://onlinelibrary.wiley.com/doi/10.1002/eco.1460/pdf
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Modeling - The Ninth Art - Video

The art and science of SPARROW modeling. The steps of developing the SPARROW model. The other eight arts are: Architecture, Sculpture, Painting, Music, Poetry, Dance, Theater and Cinema. To view the video click here .
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Modeling - The Ninth Art - Video

The art and science of SPARROW modeling. The steps of developing the SPARROW model. The other eight arts are: Architecture, Sculpture, Painting, Music, Poetry, Dance, Theater and Cinema. To view the video click here .
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