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geodata.gov is a geographic information system (GIS) portal, also known as the Geospatial One-Stop, that serves as a public gateway for improving access to geospatial information and data under the Geospatial One-Stop e-government initiative. Geospatial One-Stop is one of 24 e-government initiatives sponsored by the Federal Office of Management and Budget (OMB) to enhance government efficiency and to improve citizen services. Geospatial One-Stop makes it easier, faster, and less expensive for all levels of government and the public to access geospatial information. The portal is a catalog of geospatial information containing thousands of metadata records (information about the data) and links to live maps, features,...
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The USGS SAGEMAP provides a GIS Database for Sage Grouse and Shrubsteppe Management in the Intermountain West. SAGEMAP provides documents on recient developements, information, interactive maps, and data concerning sage ecological communities in the US.
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This dataset contains geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected by U.S. Geological Survey (USGS) personnel and analyzed in the analytical laboratories of the Geologic Division of the USGS. These data represent analyses of sediment samples collected in support of various USGS programs. The data were originally entered into the in-house Rock Analysis Storage System (RASS) database which was used by the Geologic Division from the early-1970's through the late-1980's to archive geochemical data. An unpublished CD-ROM was developed in 1996 that contains the RASS data in GSSEARCH format. That CD was used to generate this data set.
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These data can be used in a geographic information system (GIS) for any number of purposes such as assessing wildlife habitat, water quality, pesticide runoff, land use change, etc. The State data sets are provided with a 300 meter buffer beyond the State border to faciliate combining the State files into larger regions. The user must have a firm understanding of how the datasets were compiled and the resulting limitations of these data. The National Land Cover Dataset was compiled from Landsat satellite TM imagery (circa 1992) with a spatial resolution of 30 meters and supplemented by various ancillary data (where available). The analysis and interpretation of the satellite imagery was conducted using very large,...
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The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects. DATA SUMMARY: These fire behavior fuel models represent distinct distributions of fuel loadings found among surface fuel components (live and dead), size classes and fuel types. The fuel models are described by the most...
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This dataset represents land cover for southeastern Wyoming including the portion of Laramie County from Interstate 25 west, all of Albany and Carbon Counties and part of Sweetwater county. The landcover map was developed from Landsat Enhanced Thematic Mapper (ETM+) data acquired in the summer of 2002 using a series of unsupervised classifications and guided labeling of classes based on field data. The map was created between 2002 and 2004 for the Wyoming Game and Fish Department as part of a larger spatial database designed to be used to help guide their land management activities, particularly in shrublands. The original resolution of this map is 30 meters, the full resolution of the Landsat multispectral data....
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The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects. DATA SUMMARY: Canopy base height (CBH) describes the lowest point in a stand where there is sufficient available fuel (= .25 in dia.) to propagate fire vertically through the canopy. Specifically, CBH is defined as the lowest...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
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The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects. DATA SUMMARY: Thirteen typical surface fuel arrangements or "collections of fuel properties" (Anderson 1982) were described to serve as input for Rothermel's mathematical surface fire behavior and spread model (Rothermel...
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Mineral resource occurrence data covering the world, most thoroughlywithin the U.S. This database contains the records previously provided in the Mineral Resource Data System (MRDS) of USGS and the Mineral Availability System/Mineral Industry Locator System (MAS/MILS) originated in the U.S. Bureau of Mines, which is now part of USGS. The MRDS is a large and complex relational database developed over several decades by hundreds of researchers and reporters. This product is a digest in which the fields chosen are those most likely to contain valid information.
Long-term, non-contact river velocity measurements have been made using a UHF RiverSonde system for several months at each of two locations having quite different flow characteristics. Observations were made on the Cowlitz River at Castle Rock, Washington from October 2003 to June 2004, where the unidirectional flow of the river ranged from about 1.0 to 3.5 m/s. The radar velocity was highly correlated with the stage height which was continually measured by the U. S. Geological Survey. The profile of the along-channel velocity across the water channel also compared favorably with in-situ measurements performed by the Survey. The RiverSonde was moved to Threemile Slough, in central California, in September 2004 and...
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The LANDFIRE existing vegetation layers describe the following elements of existing vegetation for each LANDFIRE mapping zone: existing vegetation type, existing vegetation canopy cover, and existing vegetation height. Vegetation is mapped using predictive landscape models based on extensive field reference data, satellite imagery, biophysical gradient layers, and classification and regression trees. DATA SUMMARY: The existing vegetation type (EVT) data layer represents the current distribution of the terrestrial ecological systems classification developed by NatureServe for the western Hemisphere (http://www.natureserve.org/publications/usEcologicalsystems.jsp). A terrestrial ecological system is defined as a group...
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The LANDFIRE existing vegetation layers describe the following elements of existing vegetation for each LANDFIRE mapping zone: existing vegetation type, existing vegetation canopy cover, and existing vegetation height. Vegetation is mapped using predictive landscape models based on extensive field reference data, satellite imagery, biophysical gradient layers, and classification and regression trees. DATA SUMMARY: The existing vegetation cover (EVC) data layer is an important input to LANDFIRE modeling efforts. EVC is generated separately for tree, shrub and herbaceous cover life forms using training data and a series of geospatial data layers. Percentage tree canopy cover training data are generated using digital...
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SRTM data are organized into individual rasterized cells, or tiles, each covering one degree by one degree in latitude and longitude. Sample spacing for individual data points is either 1 arcsecond, 3 arc-seconds, or 30 arc-seconds, referred to as SRTM1, SRTM3 and SRTM30, respectively. Since one arc-second at the equator corresponds to roughly 30 meters in horizontal extent, the SRTM1 and SRTM3 are sometimes referred to as "30 meter" or "90 meter" data. SRTM data were processed and delivered continent-by-continent and data for each continent are located in a separate directory on this server. The definitions of the continents are displayed in the figure below and at higher resolution in the file Continent_def.gif....
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The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects. DATA SUMMARY: Canopy height describes the average height of the top of the canopy for a stand. A spatially-explicit map of canopy height supplies information for fire behavior models such as FARSITE (Finney 1998) to determine...
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The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects. DATA SUMMARY: Canopy bulk density (CBD) is defined as the mass of available canopy fuel per unit canopy volume (Scott and Reinhardt 2001). A spatially explicit map of canopy bulk density supplies information used in fire...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that comprise the nation's surface water drainage system. Medium resolution NHD is based on the content of the U.S. Geological Survey 1:100,000-scale Digital Line Graph (DLG) hydrography data, integrated with reach-related information from the U.S. Environmental Protection Agency Reach File Version 3.0 (RF3). More specifically, it contains reach codes for networked features and isolated lakes, flow direction, names, stream level, and centerline representations for areal water bodies. Reaches are also defined to represent water bodies and the approximate shorelines of the Great...
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This dataset contains geochemical data for soils collected in the United States and analyzed in the analytical laboratories of the Geologic Division of the U.S. Geological Survey (USGS). These data represent analyses of soil samples collected in support of various USGS programs. The data were originally entered into the in-house PLUTO database which was used by the Geologic Division from the mid- 1970's through the mid-1990's to archive geochemical data. A portion of the PLUTO data base is published as: Baedecker, P.A., Grossman, J.N., and Buttleman, K.P., 1998, National Geochemical Data base: PLUTO geochemical data base for the United States: U.S. Geological Survey Digital Data Series DDS-47. The data presented...
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This file contains one of many raster grids of the Elevation Derivatives for National Applications (EDNA), a multi-layered database that provides systematic and consistent topographically-derived hydrologic derivatives. The slope grid was generated from the filled DEM using the "slope" function. The grid was created with the degree, not percent, slope parameter.
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NHD
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...


map background search result map search result map Canopy Base Height LANDFIRE for Wyoming at 1:24,000 Canopy Bulk Density LANDFIRE for Wyoming at 1:24,000 Canopy Height LANDFIRE for Wyoming at 1:24,000 National Land Cover Data Set 1992 for Wyoming 30 meter USGS SAGEMAP EDNA Slope (degrees) LANDFIRE for Wyoming at 1:24,000 Geochemistry of unconsolidated sediments in the US from the RASS database for Wyoming Land Cover 30m for Southeast Wyoming Existing Vegetation Cover LANDFIRE for Wyoming at 1:24,000 Fire Behavior Fuel Model 13 LANDFIRE for Wyoming at 1:24,000 Existing Vegetation LANDFIRE for Wyoming at 1:24,000 Fire Behavior Fuel Model 40 LANDFIRE for Wyoming at 1:24,000 Geochemistry of soils in the US from the PLUTO database for Wyoming Geospatial One Stop - GOS National Hydrography Dataset (NHD) - Medium-resolution at 1:100,000 National Hydrography Dataset (NHD) - High-resolution at 1:24,000 NHD 90 m DEM of California, USA Land Cover 30m for Southeast Wyoming NHD National Hydrography Dataset (NHD) - Medium-resolution at 1:100,000 National Hydrography Dataset (NHD) - High-resolution at 1:24,000 National Land Cover Data Set 1992 for Wyoming 30 meter Canopy Base Height LANDFIRE for Wyoming at 1:24,000 Canopy Bulk Density LANDFIRE for Wyoming at 1:24,000 Canopy Height LANDFIRE for Wyoming at 1:24,000 USGS SAGEMAP EDNA Slope (degrees) LANDFIRE for Wyoming at 1:24,000 Geochemistry of unconsolidated sediments in the US from the RASS database for Wyoming Existing Vegetation Cover LANDFIRE for Wyoming at 1:24,000 Fire Behavior Fuel Model 13 LANDFIRE for Wyoming at 1:24,000 Existing Vegetation LANDFIRE for Wyoming at 1:24,000 Fire Behavior Fuel Model 40 LANDFIRE for Wyoming at 1:24,000 Geochemistry of soils in the US from the PLUTO database for Wyoming Geospatial One Stop - GOS 90 m DEM of California, USA