Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands

This map layer contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands, portrayed as polygons. The map layer was developed as part of the effort to produce the maps published at 1:2,500,000 in the printed series "Ground Water Atlas of the United States". The published maps contain base and cultural features not included in these data. This is a replacement for the July 1998 map layer called Principal Aquifers of the 48 Conterminous United States.

Categories: Web Site; Tags: Louisiana, Iowa, Ohio, Utah, Hydrogeology, All tags... Idaho, Maine, Texas, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Aquifer, Arizona, Pennsylvania, Groundwater, New York, U.S. Virgin Islands, Geoscientific information, California, New Jersey, New Mexico, Georgia, Virginia, South Carolina, Wisconsin, Vermont, Hawaii, Kansas, United States, Nevada, Oregon, Geohydrology, West Virginia, Michigan, Puerto Rico, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

Income and Employment in the United States, 1993-2001

This map layer portrays 1993 to 2001 estimates for total personal income, per capita personal income, annual number of full-time and part- time jobs, average wage per job in dollars, population, and per capita number of jobs, for counties in the United States. Total personal income is all the income that is received by, or on behalf of, the residents of a particular area. It is calculated as the sum of wage and salary disbursements, other labor income, proprietors' income with inventory valuation and capital consumption adjustments, rental income of persons with capital consumption adjustment, personal dividend income, personal interest income, and transfer payments to persons, minus personal contributions for social...

Categories: Web Site; Tags: Economy, Louisiana, Population, Jobs, Iowa, All tags... Ohio, Utah, USA, Idaho, Maine, Wages, Texas, Kentucky, Maryland, Washington, Wage and salary employment, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, Average wage, New York, California, New Jersey, New Mexico, Georgia, Virginia, Disbursements, South Carolina, Per capita number of jobs, Wisconsin, Alaska, Vermont, Hawaii, Employment, Income, Kansas, United States, Nevada, Oregon, West Virginia, Michigan, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Personal income, Missouri, Mississippi, Full-time jobs, Part-time jobs, Connecticut, Wyoming, New Hampshire, Per capita income, Indiana, Colorado, Rhode Island, Oklahoma, Society, North Carolina, Massachusetts, Fewer tags

Agriculture Census of the United States - 2007

This map layer portrays a selected set of information that was collected for the 2007 Census of Agriculture by the National Agricultural Statistics Service, U.S. Department of Agriculture. There are 25 categories of data which include information about farms, crops, livestock, values of products, and farm operator characteristics. The data is for the United States and is presented by county. This is a replacement for the June 2005 Agriculture Census of the United States – 2002 map layer.

Categories: Web Site; Tags: Hawaii, Kansas, United States, Nevada, Oregon, All tags... West Virginia, Michigan, Farm production, Arkansas, Montana, Market value, Illinois, Minnesota, Livestock, District of Columbia, Missouri, Mississippi, farming, Croplands, Connecticut, Wyoming, New Hampshire, Indiana, Farm operator, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Louisiana, Agricultural census, Agriculture, Iowa, Corn, Ohio, Utah, USA, Crops, Idaho, Farms, Maine, Wheat, Texas, Vegetables, Cattle and calves, Kentucky, Maryland, Washington, Broilers, Tennessee, Family farm, Production expenses, Farm machinery, North Dakota, South Dakota, Alabama, Irrigated land, Nebraska, Delaware, Florida, Arizona, Nursery crops, Pennsylvania, Milk cows, Orchards, Poultry, Tractors, New York, California, New Jersey, New Mexico, Georgia, Virginia, Chickens, South Carolina, Wisconsin, Soybeans, Alaska, Cattle, Vermont, Census, Cotton, Fewer tags

Congressional Districts of the United States - 108th Congress

This map layer portrays the Congressional Districts of the United States for the 108th Congress. Lines coincident with Congressional District boundaries were extracted from the existing National Atlas County Boundaries layer. In areas lacking coincident geometry, lines from State data sets or from an Election Data Services data set were integrated into the file. This is an update of the March 2003 map layer.

Categories: Web Site; Tags: Louisiana, Iowa, Ohio, Utah, USA, All tags... Idaho, Maine, Texas, Kentucky, Maryland, Washington, Tennessee, Congressional Districts, North Dakota, Boundaries, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Delegate Districts, Congressional District boundaries, Pennsylvania, New York, U.S. Virgin Islands, California, New Jersey, New Mexico, Georgia, Virginia, South Carolina, Wisconsin, Alaska, Vermont, Hawaii, Kansas, United States, Nevada, Oregon, States, West Virginia, Michigan, Puerto Rico, Arkansas, Montana, Illinois, Minnesota, boundaries, District of Columbia, Missouri, Mississippi, House of Representatives, Connecticut, Wyoming, New Hampshire, Indiana, State boundaries, Colorado, Congress, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

Topographic and Bathymetric Shaded Relief of North America

The Topographic and Bathymetric Shaded Relief of North America map layer shows depth and elevation ranges using colors, with relief enhanced by shading. The image was derived from two pre-existing map layers; the Bathymetric Shaded Relief of North America, derived from ETOPO2 data, and the Color North America Shaded Relief, derived from GTOPO30 data.

Categories: Web Site; Tags: Digital Elevation Model, Greenland, Louisiana, Iowa, Ohio, All tags... Utah, DEM, Idaho, Maine, Texas, Kentucky, Maryland, Washington, Bathymetric, Atlantic, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Pacific, Delaware, Florida, Arizona, Pennsylvania, GTOPO30, New York, U.S. Virgin Islands, California, New Jersey, New Mexico, Georgia, Virginia, North America, South Carolina, Wisconsin, Caribbean, Alaska, Elevation, Canada, Vermont, ETOPO2, Hawaii, Kansas, United States, Mexico, Topography, Nevada, Oceans, Bathymetry, Shaded Relief, Oregon, West Virginia, Michigan, Puerto Rico, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Imagery/Base Maps/Earth Cover, Missouri, Mississippi, Topographic, Iceland, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

Average Vegetation Growth 2001

This map layer is a grid map of 2001 average vegetation growth for Alaska and the conterminous United States. The nominal spatial resolution is 1 kilometer and the map layer is based on 1-kilometer AVHRR data. The data were compiled by staff at the USGS Center for Earth Resources Observation and Science.

Categories: Web Site; Tags: Greenness, Louisiana, Iowa, Ohio, NDVI, All tags... Utah, USA, Idaho, Maine, Texas, biota, Vegetation, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, New York, California, New Jersey, New Mexico, Georgia, Virginia, South Carolina, Wisconsin, Alaska, Vermont, Kansas, United States, Nevada, Oregon, West Virginia, Michigan, imageryBaseMapsEarthCover, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

2004 Presidential General Election, County Results

This data set portrays election results, by counties for 49 States and by election districts for Alaska, for the 2004 Presidential general election. Reported for each county are the popular vote count for the Democratic Party candidate, the Republican Party candidate, and all other votes. Also reported are the percentage of the vote cast for each party’s candidate, based on the total number of valid votes cast. Over votes (ballots which contained votes for more than one candidate) and under votes (ballots which contained votes for no candidate) are not included in the total number of votes reported. For details particular to each State, see the Process Steps.

Categories: Web Site; Tags: Louisiana, Iowa, Ohio, Utah, USA, All tags... Idaho, Maine, Votes, Texas, Republican, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, Democratic, Political parties, New York, Election Districts, California, New Jersey, Elections, New Mexico, Popular votes, Georgia, Virginia, South Carolina, General elections, Wisconsin, Alaska, Vermont, Presidential elections, Hawaii, Kansas, society, United States, Nevada, Oregon, West Virginia, Michigan, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, 2004 Presidential Election, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Counties, Fewer tags

Federal Lands of the United States

This map layer consists of federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. Only areas of 640 acres or more are included. There may be private inholdings within the boundaries of Federal lands in this map layer. This is a revised version of the December 2005 map layer.

Categories: Web Site; Tags: National Park, National Mall, Louisiana, Tennessee Valley Authority, Iowa, All tags... USDA, Ohio, NASA, MWAA, Navy, Utah, Army, USA, TVA, NPS, FWS, GSA, DOE, DOD, DOJ, DOT, BOR, BLM, CIA, FS, National Memorial, National Reserve, Department of Defense, Idaho, Maine, Fish and Wildlife Service, Wilderness, Texas, U.S. Coast Guard, Air Force, Marine Corps, Kentucky, Maryland, National Monument, Washington, Wildlife Management Area, Agricultural Research Service, Bureau of Reclamation, Forest Service, Tennessee, National Aeronautics and Space Administration, Department of Transportation, North Dakota, South Dakota, Alabama, National Wild and Scenic River, Open Water, Nebraska, Delaware, Florida, Arizona, National Battlefield Park, Pennsylvania, National River, National Conservation Area, Polygon, National Historic Park, National Historic Site, New York, U.S. Virgin Islands, California, New Jersey, Department of Justice, National Seashore, New Mexico, Georgia, Virginia, Wilderness Study Area, National Lakeshore, National Military Park, South Carolina, National Grassland, National Capital Park, Wisconsin, National Battlefield, Alaska, Metropolitan Washington Airports Authority, Vermont, National Scenic Area, Hawaii, National Historic Landmark District, Kansas, society, Nevada, Oregon, Army Corps of Engineers, National Parkway, West Virginia, National Wildlife Refuge, intelligenceMilitary, Michigan, General Services Administration, Puerto Rico, National Fish Hatchery, Arkansas, Montana, Illinois, Bureau of Land Management, Minnesota, boundaries, District of Columbia, Federal lands, Missouri, Mississippi, United States Department of Agriculture, Department of Energy, Purchase Unit Block, Connecticut, Public Domain Land, Virgin Islands, Wyoming, New Hampshire, Bureau of Prisons, National Forest, Indiana, Waterfowl Production Area, National Preserve, National Recreation Area, Colorado, Central Intelligence Agency, National Park Service, Forest Reserve, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

Omernik's Level III Ecoregions of the Continental United States

This map layer shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of Omernik's framework that were made for other projects. Ecoregions describe areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. Omernik's ecoregions are based on the premise that a hierarchy of ecological regions can be identified through the analysis of the patterns and the composition of both living and nonliving phenomena, such as geology, physiography, vegetation, climate, soils, land use, wildlife, and hydrology, that affect or reflect differences in ecosystem quality and integrity. All the characteristics are considered...

Categories: Web Site; Tags: Louisiana, environment, Iowa, Ohio, Utah, All tags... Idaho, Maine, Texas, Ecosystem geography, biota, Kentucky, Maryland, Washington, Tennessee, Omernik's ecoregions, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, New York, California, New Jersey, New Mexico, Georgia, Regional ecology, Virginia, South Carolina, Wisconsin, Alaska, Vermont, Ecoregions, Kansas, United States, Nevada, Oregon, West Virginia, Mapping, Michigan, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, Connecticut, Wyoming, New Hampshire, Ecosystems, Indiana, Colorado, Ecological regions, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

Magnetic Field - Inclination Component for the Epoch 1995.0

This map layer shows isoclinic lines (lines of constant inclination of the Earth's magnetic field), derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic inclination is the angle between the magnetic field vector and the horizontal plane.

Categories: Web Site; Tags: Geomagnetic, Greenland, Louisiana, Magnetic, Iowa, All tags... Cuba, Ohio, Utah, USA, Idaho, Maine, Texas, Inclination, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, New York, U.S. Virgin Islands, California, New Jersey, New Mexico, Georgia, Virginia, North America, South Carolina, Wisconsin, Caribbean, Alaska, Canada, Vermont, Hawaii, IGRF95, geoscientificInformation, Kansas, United States, Mexico, Nevada, Magnetic inclination, Oregon, West Virginia, Michigan, Puerto Rico, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, Iceland, Connecticut, Virgin Islands, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

Average Vegetation Growth 1996

This map layer is a grid map of 1996 average vegetation growth for Alaska and the conterminous United States. The nominal spatial resolution is 1 kilometer and the map layer is based on 1-kilometer AVHRR data. The data were compiled by staff at the USGS Center for Earth Resources Observation and Science.

Categories: Web Site; Tags: Greenness, Louisiana, Iowa, Ohio, NDVI, All tags... Utah, USA, Idaho, Maine, Texas, biota, Vegetation, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, New York, California, New Jersey, New Mexico, Georgia, Virginia, South Carolina, Wisconsin, Alaska, Vermont, Kansas, United States, Nevada, Oregon, West Virginia, Michigan, imageryBaseMapsEarthCover, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

U.S. Census Database, 1990

This data set includes U.S. Census Bureau 1990 population information for the United States, presented by county. Included are total population counts; various statistics on race, ethnic, and gender distributions; income statistics; urban and rural statistics, and median age. This is a revised version of the July, 2004, data set, with data for urban and rural statistics added.

Categories: Web Site; Tags: Hispanic Origin, Louisiana, Pacific Islander, American Indian, Population, All tags... Iowa, Ohio, Male, Utah, USA, Age, Black, Asian, Idaho, Maine, Rural, White, Urban, Texas, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, New York, California, New Jersey, New Mexico, Georgia, Virginia, South Carolina, Wisconsin, Alaska Native, Alaska, Vermont, Census, Female, Hawaii, Income, Kansas, United States, Nevada, Oregon, West Virginia, Michigan, Arkansas, Montana, Illinois, Minnesota, Hispanic, District of Columbia, Missouri, Mississippi, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, Median Age, North Carolina, Massachusetts, Fewer tags

Territorial Acquisitions of the United States

This map layer portrays the major acquisitions of territory by the United States of America. Only areas in North America, the Caribbean, and Hawaii are included. Also shown are areas that were part of the United States at one time but which have been ceded to other countries.

Categories: Web Site; Tags: Louisiana, Boundaries of the United States, Iowa, Ohio, Utah, All tags... USA, Idaho, Maine, Texas, Kentucky, Maryland, Washington, Tennessee, North Dakota, Boundaries, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, New York, U.S. Virgin Islands, California, New Jersey, Territorial acquisition, New Mexico, Georgia, Virginia, South Carolina, Wisconsin, Alaska, Vermont, Territory acquisition, Hawaii, Kansas, United States, Nevada, Oregon, Territorial expansion, West Virginia, Michigan, Puerto Rico, Arkansas, Territorial growth, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, Connecticut, Virgin Islands, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

Sand and Gravel Operations in the United States

This map layer includes sand and gravel operations in the United States. These data were obtained from information reported voluntarily to the USGS by the aggregate producing companies. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2002 with production greater than 50,000 tons, which are non-government, non-portable, and surveyed by the MIT. This is a replacement for the January 2001 map layer.

Categories: Web Site; Tags: Louisiana, Sand and gravel, Iowa, Ohio, Utah, All tags... Idaho, Maine, Mines, Texas, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Mining operations, Pennsylvania, New York, California, New Jersey, New Mexico, Georgia, Virginia, Mineral operations, South Carolina, Wisconsin, Alaska, Vermont, Hawaii, geoscientificInformation, Kansas, United States, Nevada, Oregon, economy, West Virginia, Michigan, Arkansas, Montana, Illinois, Minnesota, Minerals, Aggregates, Missouri, Mississippi, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

RANGELAND GRASSHOPPER AND MORMON CRICKET SUPPRESSION PROGRAM, WESTERN U.S. STATES.

Categories: Publication; Types: Citation; Tags: Utah, Range Management, Birds, Idaho, Texas, All tags... Washington, EIS: Digests of Environmental Impact Statements, E2 30 Parks, Refuges and Forests, North Dakota, Recreation, South Dakota, Nebraska, Farmlands, Arizona, California, New Mexico, Visual Resources, Endangered Species (Animals), Grazing, Kansas, Plant Protection Act of 2000, Project Authorization, Nevada, Oregon, Ranges, Chemicals, Pest Control, Montana, Livestock, Wyoming, Insects, Health Hazard Analyses, Socioeconomic Assessments, Cultural Resources, Oklahoma, Colorado,, Fewer tags

Peak Vegetation Growth 1998

This map layer is a grid map of 1998 peak vegetation growth for Alaska and the conterminous United States. The nominal spatial resolution is 1 kilometer and the map layer is based on 1-kilometer AVHRR data. The data were compiled by staff at the USGS Center for Earth Resources Observation and Science.

Categories: Web Site; Tags: Greenness, Louisiana, Iowa, Ohio, NDVI, All tags... Utah, USA, Idaho, Maine, Texas, biota, Vegetation, Kentucky, Maryland, Washington, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, New York, California, New Jersey, New Mexico, Georgia, Virginia, South Carolina, Wisconsin, Alaska, Vermont, Kansas, United States, Nevada, Oregon, West Virginia, Michigan, imageryBaseMapsEarthCover, Arkansas, Montana, Illinois, Minnesota, District of Columbia, Missouri, Mississippi, Connecticut, Wyoming, New Hampshire, Indiana, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Fewer tags

GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow

This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the journal Ecology's website (Falcone and others, 2010b) in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Reference gages were identified based on indicators that they...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: hydrologic condition, District of Columbia, streamflow, Missouri, All 50 states, All tags... reference watersheds, Mississippi, Connecticut, Wyoming, New Hampshire, Indiana, water resources, Colorado, Rhode Island, Oklahoma, North Carolina, Massachusetts, Louisiana, Iowa, Ohio, Utah, HCDN, USGS, Idaho, Maine, GAGES, NPLCC, Texas, Kentucky, Maryland, Washington, Hydrological, Tennessee, North Dakota, South Dakota, Alabama, Nebraska, Delaware, Florida, Arizona, Pennsylvania, Hydrology, North Pacific Landscape Conservation Cooperative, inlandWaters, New York, California, New Jersey, New Mexico, Georgia, Virginia, USGS gages, South Carolina, Wisconsin, Alaska, Vermont, hydrologic modification, Hawaii, Kansas, United States, Nevada, Oregon, West Virginia, streamgage network, Michigan, Puerto Rico, Arkansas, Montana, Illinois, Minnesota, Fewer tags

Flood reduction through wetand restoration: the Upper Mississippi River Basin as a case history.

Synopsis: This article outlines how wetlands can significantly reduce flooding in the Upper Mississippi watershed. The authors first provide a historical context by estimating the original and lost wetland storage capacities of the Upper Mississippi and Missouri River Basins. Historically, about 10% of the basin would have been classified as wetland in 1780. By 1980, wetland acreage had been reduced to only 4% of the basin, representing about 26 million acres of wetlands eliminated since 1780. The area of wetland restoration required to reduce the risk of future flooding adequately was estimated based on the total amount of excess floodwater beyond bank-full discharge that passed through the City of St. Louis during...

Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: wetland extent, meso-regional, Montana, Wisconsin, water quality, All tags... Kansas, Wyoming, Illinois, Minnesota, Missouri, Iowa, Natural cover amount, Upper Mississippi floodplains, flooding, North Dakota, South Dakota, Nebraska, Fewer tags

Nebraska Soil Erosion Index

We obtained statewide spatially explicit gridded soil survey data for Nebraska from the Soil Survey Geographic (SSURGO) database. The ‘chorizon,’ ‘chtexture,’ ‘chtexturegrp,’ ‘mapunit,’ and ‘mutext’ tables in the Gridded SSURGO database were joined together using the “mukey” attribute field in a geographic information system (GIS). The representative values for slope (rvslope) and slope length (rvslopelenusle), the susceptibility of the soil to water erosion (Kw), and the soil loss tolerance (t_fact) values were obtained from the set of joined tables and were included in the Water Erosion Index calculation. We acquired county-specific rainfall and runoff factor values (R) from the U.S. Department ofAgriculture’s...

Tags: Conservation, environment, Nebraska, Land Use

Missouri River bed elevations at pipeline crossing near Decatur, Nebraska surveyed during 2011 flood on July, 12

A RESON SeaBat™ 7125 multibeam echosounder in conjunction with an Applanix Position Orientation Solution for Marine Vessels (POS MV™) WaveMaster system motion sensor, HYPACK®/HYSWEEP® navigation software, and Ashtech Z-Xtreme GPS receivers or Trimble R8 receivers was used to survey the Missouri River bed at 15 pipeline crossings at four different locations, at three power plant locations, and at one transmission tower during the 2011 flood event. The format of this data is a grid with each cell covering 0.5 meter by 0.5 meter. The elevation value (North American Vertical Datum, NAVD88) represented by each cell is the most probable elevation for that cell based on calculated Total Propagated Uncertainty (TPU) as...

Types: Citation; Tags: Nebraska, Burt County, terrain, environment, multibeam sonar, All tags... inlandWaters, topography, bathymetry, Missouri River, Iowa, inlandWaters, geoscientificInformation, Monona County, Fewer tags