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These datasets consist of a workspace (folder) containing a collection of gridded datasets plus a personal geodatabase containing several vector datasets. These datasets are designed to be used with the ArcHydro Tools, developed by ESRI in partnership with the U.S. Geological Survey, StreamStats Development Team. The datasets, together with the ArcHydro Tools, allow users to delineate watersheds and compute several watershed characteristics. The datasets are distributed in folders named for the 8-digit Hydrologic Unit Code (HUC) each covers. The data structure is the same for each HUC.
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This dataset consists of a personal geodatabase containing several vector datasets. These datasets may be used with the ArcHydro Tools, developed by ESRI in partnership with the U.S. Geological Survey, StreamStats Development Team. The datasets, together with the ArcHydro Tools and the ArcHydro 8-digit HUC datasets for an area of interest, allow users to delineate watersheds and compute several watershed characteristics.
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Aspect is the compass direction toward which a slope faces, measured in degrees from North in a clockwise direction from 0 to 360. Aspect was generated using ArcGIS Spatial Analyst, with the USGS National Elevation Dataset as input. For quality information regarding the National Elevation Dataset, see http://nationalmap.gov/elevation.html. These data cover the entire continental U.S. and are a continuous data layer. These raster data have a 30 m x 30 m cell resolution. This aspect data set is considered official foundational data for the GAP species modeling process. The data have been made available provisionally to enhance understanding and use of GAP species data.
Aspect was used as a surrogate to characterize areas that are relatively drier, therefor have lower live/dead fuel moistures. If the effects of vegetation are ignored, it was assumed that fuel moisture varies according to aspect. That is, with all else being equal, fuels are typically drier on southwesterly aspects, and moister on northeasterly aspects. Relative fuel moisture was assigned to 3 aspect classes : Azimuth (degrees) Relative Solar Radiation Relative Fuel Moisture 1 to 80; 351 to 360 low high Flat; 81 to 170; 261 to 350 moderate moderate 171 to 260 high low Excluding the effects of real-time weather, fire behavior is dependent upon the structure, composition, and arrangement of fuels; fuel moisture, and...
The Great Plains Landscape Conservation Cooperative (GPLCC, http://www.greatplainslcc.org/) is a partnership that provides applied science and decision support tools to assist natural resource managers conserve plants, fish and wildlife in the mid- and short-grass prairie of the southern Great Plains. It is part of a national network of public-private partnerships — known as Landscape Conservation Cooperatives (LCCs, http://www.fws.gov/science/shc/lcc.html) — that work collaboratively across jurisdictions and political boundaries to leverage resources and share science capacity. The Great Plains LCC identifies science priorities for the region and helps foster science that addresses these priorities to support wildlife...
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The aspect of each 1-km2 grid cell was represented by eastness and northness (Zar, 1999), which are variables that represent aspect by converting the 1 to 360º range of possible azimuths into a range of -1 to 1, where -1 = south or west and 1 = north or east for northness and eastness, respectively.
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These datasets each consist of a folder containing a personal geodatabase of the NHD, and shapefiles used in the HydroDEM process. These files are provided as a means to document exactly which lines were used to develop the HydroDEMs. Each folder contains a line shapefile named for the 8-digit HUC code, containing the NHD flowlines that comprise the coastline for that island. The “hydrolines.shp” shapefile contains the lines that were burned into the DEM. These lines were selected from the NHD flowlines, with some minor editing in places. The “wbpolys.shp” shapefile contains the water-body polygons that were selected from the NHD and used in the bathymetric gradient process. The folders for HUCs 20010000 (Hawaii)...
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These datasets each consist of a workspace (folder) containing a collection of gridded datasets plus a personal geodatabase containing several vector datasets. These datasets are designed to be used with the ArcHydro Tools, developed by ESRI in partnership with the U.S. Geological Survey, StreamStats Development Team. The datasets, together with the ArcHydro Tools, allow users to delineate watersheds and compute several watershed characteristics. The datasets are distributed in folders named for the 8-digit Hydrologic Unit Code (HUC) each covers. The data structure is the same for each HUC. For Hawaii, the HUCs included correspond to the five largest islands.
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This dataset consists of a personal geodatabase containing several vector datasets. This database contains the information needed to link the HUCs together so a watershed may be delineated that spans more than one 8-digit HUC. These datasets may be used with the ArcHydro Tools, developed by ESRI in partnership with the U.S. Geological Survey, StreamStats Development Team. The datasets, together with the ArcHydro Tools and the ArcHydro 8-digit HUC datasets for an area of interest, allow users to delineate watersheds and compute several watershed characteristics.
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The aspect of each 1-km2 grid cell was represented by eastness and northness (Zar, 1999), which are variables that represent aspect by converting the 1 to 360º range of possible azimuths into a range of -1 to 1, where -1 = south or west and 1 = north or east for northness and eastness, respectively.
The Great Plains Landscape Conservation Cooperative (GPLCC, http://www.greatplainslcc.org/) is a partnership that provides applied science and decision support tools to assist natural resource managers conserve plants, fish and wildlife in the mid- and short-grass prairie of the southern Great Plains. It is part of a national network of public-private partnerships — known as Landscape Conservation Cooperatives (LCCs, http://www.fws.gov/science/shc/lcc.html) — that work collaboratively across jurisdictions and political boundaries to leverage resources and share science capacity. The Great Plains LCC identifies science priorities for the region and helps foster science that addresses these priorities to support wildlife...
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This dataset consists of a workspace (folder) containing 41 gridded datasets and a personal geodatabase. The gridded datasets consist of 28 precipitation-frequency grids, a mean annual precipitation grid, eight land cover grids, two soil permeability grids, a synthetic stream grid, and a region grid used in the Hawaii StreamStats application for peak flow estimates. The personal geodatabase contains a polygon feature class of exclusion polygons, which identify areas in which use the StreamStats application is restricted.


    map background search result map search result map LANDFIRE Aspect for the Great Plains Landscape Conservation Cooperative Elevation Derivatives for National Applications (EDNA) Aspect for the Great Plains Landscape Conservation Cooperative ArcHydro global datasets for Idaho StreamStats ArcHydro 8-digit HUC datasets for Idaho StreamStats ArcHydro global datasets for Hawaii StreamStats ArcHydro 8-digit HUC datasets for Hawaii StreamStats Original Vector Datasets for Hawaii StreamStats Statewide datasets for Hawaii StreamStats Landscape slope in degrees for North Pacific Landscape Conservation Cooperative, British Columbia, Canada Landscape elevation for North Pacific Landscape Conservation Cooperative, British Columbia, Canada Percent rocks used in modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona, USA Northern aspect used in modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona, USA Eastern aspect used in modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona, USA Aspect in the Wyoming Basins Ecoregional Assessment area USGS Gap Analysis Project - Additional Data – Aspect ArcHydro global datasets for Hawaii StreamStats ArcHydro 8-digit HUC datasets for Hawaii StreamStats Original Vector Datasets for Hawaii StreamStats Statewide datasets for Hawaii StreamStats Percent rocks used in modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona, USA Northern aspect used in modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona, USA Eastern aspect used in modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona, USA ArcHydro global datasets for Idaho StreamStats ArcHydro 8-digit HUC datasets for Idaho StreamStats Elevation Derivatives for National Applications (EDNA) Aspect for the Great Plains Landscape Conservation Cooperative LANDFIRE Aspect for the Great Plains Landscape Conservation Cooperative Aspect in the Wyoming Basins Ecoregional Assessment area Landscape slope in degrees for North Pacific Landscape Conservation Cooperative, British Columbia, Canada Landscape elevation for North Pacific Landscape Conservation Cooperative, British Columbia, Canada USGS Gap Analysis Project - Additional Data – Aspect