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The Transmission Lines layer is a comprehensive layer consisting of market significant transmission lines in North America. Depicted lines are generally greater than 115 kV and tie major power plants to the electrical grid.
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The FSim burn probability was used to determine the burn probability of the white sturgeon range in the ecoregion. This layer was used to examine wildfire risk to areas within the white sturgeon range.
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The FSim burn probability was used to determine the majority (most common) burn probability within a 4km analysis unit in areas with other conifer vegetation communities withing the ecoregion.
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Prey base condition data were extracted from the EPA 303d listing and analyzed to determine the prey base quality within Bald eagle potential suitable habitat. The quality of a HUC in relation to distance to agricultural areas was defined as good (3), fair (2), or poor (1). The score indicates the threat level for each attribute. A low score indicates a low threat, a medium score indicates a medium threat, and a high score indicates a high threat to the species. The values for each score were characterized in relation to impaired waterways. The scale ranged from 1(303d listed) to 3 (non-303d listed) and were averaged by HUC or REA 4km Grid, resulting in a score value range from 1 to 3.
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Agriculture and Urban land uses were extracted from Landfire VCC and urban areas were mosaiced with TIGER roads to determine the percentage of those land uses with the riparian corridor.
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Road features were identified using TIGER line data and those features mapped as freeways, secondary roads and local roads were selected. A moving window analysis was applied, which used a window area of 640 acres to determine the miles of road per 640 acres. Output from the analysis was scored where road density values less than 3 miles/640acres were scored as a 3 (“preferred”) and road density values greater than 3 miles/640acres received a score of 1 (“lower quality”).
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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 height (EVH) data layer is an important input to LANDFIRE modeling efforts. Canopy height is generated separately for tree, shrub and herbaceous cover life forms using training data and a series of geospatial data layers. EVH is determined by the average height weighted by species...
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Protected areas are cornerstones of national and international conservation strategies. By way of these designations, lands and waters are set-aside in-perpetuity to preserve functioning natural ecosystems, act as refuges for species, and maintain ecological processes. Complementary conservation strategies preserve land for the sustainable use of natural resources, or for the protection of significant geologic and cultural features or open space. PAD-US 1.1 (CBI Edition) attempts to include all available spatial data on these places. It is our goal to publish the most comprehensive geospatial data set of U. S. protected areas to date. PAD-US 1.1 (CBI Edition) is limited to the continental U.S., Alaska, and Hawaii....
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The FSim burn probability was used to determine the burn probability of the other conifer vegetation communities. This layer was used in the intactness management question and the results weren't rolled up to an analysis unit.
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This dataset was developed by the USGS for use in regional climate simulation analyses. These data were applied in the BLM REA analysis for the NGB ecoregion. For more information pertaining to these data and climate modeling, please refer to http://regclim.coas.oregonstate.edu/.
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This dataset was developed by the USGS for use in regional climate simulation analyses. These data were applied in the BLM REA analysis for the NGB ecoregion. For more information pertaining to these data and climate modeling, please refer to http://regclim.coas.oregonstate.edu/.
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WGA Landscape Integrity Interconnect Zones for Forest Biome linking Large Intact Blocks.There was no metadata received with the orginial vector layer.
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Nest site and perch locations were derived from the NLCD (all forested cover types) were analyzed to determine the distance from Bald eagle potential suitable habitat. The quality of a HUC in relation to distance to nest site and perch locations was defined as good (3), fair (2), or poor (1). The score indicates the threat level for each attribute. A low score indicates a low threat, a medium score indicates a medium threat, and a high score indicates a high threat to the species. The values for each score were characterized in relation to distance from nest site and perch locations by 2km = poor.
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Mineral resource occurrence data covering the world, most thoroughly within 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.These locations were buffered and converted to a raster to be included in a large mosaic of development layers.
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Agricultural areas were extracted from state vegetation mapping and their location was compared to location of identified breeding bird density (75%) areas. Breeding bird density areas were mapped by Doherty et al. 2010.16 - 32 % agriculture = moderate> 32 % agriculture = low quality
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This dataset was developed by the USGS for use in regional climate simulation analyses. These data were applied in the BLM REA analysis for the NGB ecoregion. For more information pertaining to these data and climate modeling, please refer to http://regclim.coas.oregonstate.edu/.
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Current yellowstone cutthroat trout lake populations as identified during the 2011 yellowstone cutthroat trout assessment meetings.
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EPA Toxic Release Inventory sites was used to determine the proximity of these sites to analysis units containing Columbia spotted frog modeled suitable habitat. If the analysis unit contained a site it was deemed poor and it had no sites this was classed as good habitat for this key ecological attribute.
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The PRISM 1980-2010 July mean temperature was extracted for the mountain whitefish range in the ecoregion. The temperature range of the current climate scenario was used to estimate what is a current suitable range and use to assess suitablity for a future climate scenario temperature range. The mean temperature, mean temperature + 1 Standard Deviation and maximum temperature were extracted from the raster statistics. Mountain whitefish has a mean of 30.2*C, Mean + 1SD of 32.8*C and Max Temp of 35.6*C.
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SSURGO soils was modified for the ecoregion by supplementing gaps in the SSURGO coverage with STATSGO data. This layer was then converted to a raster to make the layer more manageable with spatial modeling. Recently, NRCS has released a new SSURGO layers that is nationwide (gSSURGO) and it should probably be used in the future.


map background search result map search result map BLM REA NGB 2011 Proximity of Forest Cover to Foraging Habitat (Summer) BLM REA NGB 2011 WGA ICZ forest poly BLM REA NGB 2011 Other Conifer Burn Probability within 4km Analysis Unit BLM REA NGB 2011 Condition of Perennial Streams and Open Water (Summer) BLM REA NGB 2011 CL L MAR delta SWE 15km.img BLM REA NGB 2011 SSURGO Soils (Raster) Soil Erodibility BLM REA NGB 2011 CL C ANNUAL 80 99 RT Total 15km.img BLM REA NGB 2011 DOD and DOE Land in the NGB BLM REA NGB 2011 FSim Burn Probability of Other Conifer BLM REA NGB 2011 Transmission Lines in the NGB BLM REA NGB 2011 Fsim Burn Probability in White Sturgeon Areas (4km) BLM REA NGB 2011 AS C 553416 YCT 2011 Lakes poly BLM REA NGB 2011 Columbia Spotted Frog modeled habitat within Toxic Release Inventory Sites BLM REA NGB 2011 Mean July Temperature for Mountain Whitefish BLM REA NGB 2011 Undeveloped Land Riparian Condition in the NGB BLM REA NGB 2011 Road Density for Modeled Mule Deer Summer and Year long Habitat BLM REA NGB 2011 Landfire ExistVegHeight 30m.img BLM REA NGB 2011 Agriculture within Greater Sage-grouse Breeding Bird Density Areas (75%) BLM REA NGB 2011 MRDS Mineral Resources in the Northern Great Basin BLM REA NGB 2011 CL L JLY AUG 50 69 RT Total 15km.img BLM REA NGB 2011 AS C 553416 YCT 2011 Lakes poly BLM REA NGB 2011 Mean July Temperature for Mountain Whitefish BLM REA NGB 2011 Transmission Lines in the NGB BLM REA NGB 2011 Undeveloped Land Riparian Condition in the NGB BLM REA NGB 2011 Road Density for Modeled Mule Deer Summer and Year long Habitat BLM REA NGB 2011 Agriculture within Greater Sage-grouse Breeding Bird Density Areas (75%) BLM REA NGB 2011 WGA ICZ forest poly BLM REA NGB 2011 MRDS Mineral Resources in the Northern Great Basin BLM REA NGB 2011 Proximity of Forest Cover to Foraging Habitat (Summer) BLM REA NGB 2011 Condition of Perennial Streams and Open Water (Summer) BLM REA NGB 2011 Other Conifer Burn Probability within 4km Analysis Unit BLM REA NGB 2011 SSURGO Soils (Raster) Soil Erodibility BLM REA NGB 2011 FSim Burn Probability of Other Conifer BLM REA NGB 2011 Fsim Burn Probability in White Sturgeon Areas (4km) BLM REA NGB 2011 Columbia Spotted Frog modeled habitat within Toxic Release Inventory Sites BLM REA NGB 2011 CL L MAR delta SWE 15km.img BLM REA NGB 2011 CL C ANNUAL 80 99 RT Total 15km.img BLM REA NGB 2011 CL L JLY AUG 50 69 RT Total 15km.img BLM REA NGB 2011 DOD and DOE Land in the NGB BLM REA NGB 2011 Landfire ExistVegHeight 30m.img