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USGS developed The National Map (TNM) Gazetteer as the Federal and national standard (ANSI INCITS 446-2008) for geographic nomenclature based on the Geographic Names Information System (GNIS). The National Map Gazetteer contains information about physical and cultural geographic features, geographic areas, and locational entities that are generally recognizable and locatable by name (have achieved some landmark status) and are of interest to any level of government or to the public for any purpose that would lead to the representation of the feature in printed or electronic maps and/or geographic information systems. The dataset includes features of all types in the United States, its associated areas, and Antarctica,...
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The U.S. Geological Survey (USGS) has generated land surface form classes for the contiguous United States. These land surface form classes were created as part of an effort to map standardized, terrestrial ecosystems for the nation using a classification developed by NatureServe (Comer and others, 2003). Ecosystem distributions were modeled using a biophysical stratification approach developed for South America (Sayre and others, 2008) and now being implemented globally (Sayre and others, 2007). Land surface forms strongly influence the differentiation and distribution of terrestrial ecosystems, and are one of the key input layers in the ecosystem delineation process.The methodology used to produce these land surface...
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This grid of 90 meter cells represents the results of a GIS based model to identify communities of ravines, bowls, and moist hollows in Northern Appalachian/Acadian ecoregion. Attributes include items such as the size of the occurrence, elevation, bedrock geology, conservation status, landscape context, and portfolio status.
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This grid of 90 meter cells represents the results of a GIS based model to identify rocky summit communities in Northern Appalachian/Acadian ecoregion. Attributes include items such as the size of the occurrence, elevation, bedrock geology, conservation status, landscape context, and portfolio status.
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Ecoregions are based on perceived patterns of a combination of causal and integrative factors including land use, land surface form, potential natural vegetation, and soils (Omernik 1987). This is a copy of the ecoregion coverage of Omernik (1987) with some item names modified.
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USGS developed The National Map (TNM) Gazetteer as the Federal and national standard (ANSI INCITS 446-2008) for geographic nomenclature based on the Geographic Names Information System (GNIS). The National Map Gazetteer contains information about physical and cultural geographic features, geographic areas, and locational entities that are generally recognizable and locatable by name (have achieved some landmark status) and are of interest to any level of government or to the public for any purpose that would lead to the representation of the feature in printed or electronic maps and/or geographic information systems. The dataset includes features of all types in the United States, its associated areas, and Antarctica,...
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U.S. Geological Survey, Department of the Interior - The annual Geographic Names acquisition plan is to collect geographic name data over the United States and its territories through the Board on Geographic Names processes. The U.S. Board on Geographic Names is a Federal body created in 1890 and established in its present form by Public Law in 1947 to maintain uniform geographic name usage throughout the Federal Government. The Board comprises representatives of Federal agencies concerned with geographic information, population, ecology, and management of public lands. Sharing its responsibilities with the Secretary of the Interior, the Board promulgates official geographic feature names with locative attributes...
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U.S. Geological Survey, Department of the Interior - The annual Geographic Names acquisition plan is to collect geographic name data over the United States and its territories through the Board on Geographic Names processes. The U.S. Board on Geographic Names is a Federal body created in 1890 and established in its present form by Public Law in 1947 to maintain uniform geographic name usage throughout the Federal Government. The Board comprises representatives of Federal agencies concerned with geographic information, population, ecology, and management of public lands. Sharing its responsibilities with the Secretary of the Interior, the Board promulgates official geographic feature names with locative attributes...
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Exotic plant survey polygon data representing infested or non-infested areas including inventory, treatment, and monitoring efforts. Polygons generated from point and line features using a buffer distance entered in the field or data was collected as a polygon for large or irregular sized patches. Data collected by field personnel using mapping grade GPS and a statewide data collection protocol. INSTRUCTIONS FOR USE: see supplemental section on how to use this GeoDatabase.
Tags: AKRO, ANIA, Alaska, Alaska Region NPS Regional Office, Alien / Noxious Plants, All tags...
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This grid of 90 meter cells represents the results of a GIS based model to identify freshwater wetland communities in Northern Appalachian/Acadian ecoregion. Attributes include items such as the size of the occurrence, elevation, bedrock geology, conservation status, landscape context, and portfolio status.
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This dataset is a scientifically based, hierarchical system of map units for Southwestern Wyoming that incorporates ecological principles and processes across a range of scales. These units are a mapping of terrain features having similar terrain configuration, ecological properties and management implications within which situational landscape-ecosystems can logically and conveniently be defined. While the process of delineation of these units is subjective, units are hierarchically nested into the structure of the ECOMAP (1993) national hierarchy of ecological units. The includes Landtype Associations as well as higher hierarchical units in which Landtype Associations are imbedded. Associations are defined by...
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Low-lying areas (1-acre minimum) within the MRB/GHI Water Quality Priority Zone derived from 30-m NED DEM Topographic Position Index (180-m radius) values less than 1/4 standard deviation below the mean. Used as an aid in identifying wetland restoration potential.
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This map depicts the major terrestrial landforms in the Wyoming Basin Ecoregion. Major hydrologic features within the Wyoming Basin Ecoregions are shown for by hydrologic region 1st level and 2nd level watersheds. In addition, the Bureau of Land Management Field Office boundaries, Land ownership, distribution of ecological communities and dominant land use that intersect the Wyoming Basin Rapid Ecoregional Assessment project area are portrayed. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use....
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This dataset shows integrated terrain units for a subregion of the Kuparuk River Watershed in Alaska. The integrated terrain units are a combination of geomorphology, geology, and vegetation complexes (all of which are included as attributes). This dataset was created at a 1:25,000 scale.
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Landform is derived from the Land Facet tool using USGS digital elevation model (DEM) data. This data layer classifies areas as ridgelines, plains, valleys, or slopes.These data were provided by Dudek, for full metadata please contact them directly.
Tags: drecp, dudek, landform
Four-level Braun-Blanquet vegetation type hierarchies of an arctic (a section of the Arctic Coastal Plain at Atkasook, Alaska) and an alpine (Indian Peaks area, Colorado Southern Rocky Mountains) area were compared through their vascular plant taxa composition. Vegetation types at all hierarchy levels were more numerous, less well defined, and less clearly distributed along the controlling environmental gradients in the Arctic than in the alpine. This greater environmental and vegetational heterogeneity and relatively poor definition of vegetation types are probably controlled by the surface disturbances of the thaw-lake cycle, rivers, cryoturbation, and wind, which cause significant horizontal movement of materials...
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This grid of 90 meter cells represents the results of a GIS based model to identify steep slope communities in Northern Appalachian/Acadian ecoregion. Attributes include items such as the size of the occurrence, elevation, bedrock geology, conservation status, landscape context, and portfolio status.
Since the beginning of the Cenozoic period several hundreds of metres of the sedimentary cover have been removed from the Colorado Plateau. Palaeoclimatic considerations show that the Colorado Plateau has been dominated by dry climates throughout the Cenozoic with the possible exception of the early Palaeocene. Today in the still prevailing arid climate, which strongly accentuates differences in rock resistance, the relief shows a structurally controlled cuesta scarp topography in the slightly deformed strata of alternating resistance. In examining whether the denudational efficiency of scarp retreat was sufficient to account for the wide erosional gaps in the sedimentary cover, rates of scarp retreat were determined...
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This grid of 90 meter cells represents the results of a GIS based model to identify floodplain and riparian communities in Northern Appalachian/Acadian ecoregion. Attributes include items such as the size of the occurrence, elevation, bedrock geology, conservation status, landscape context, and portfolio status.


    map background search result map search result map Land Type Associations for the BLM Pinedale Field Office, Wyoming at 1:100,000 AKR Exotic Plant Management (EPMT) Geodatabase Modeled Ecosystems, Wetbasins Modeled Ecosystems, Summits Modeled Ecosystems, Steep Slopes Modeled Ecosystems, Ravines Modeled Ecosystems, Floodplains Landform, DRECP Lake Michigan basin, USA: Environmental Protection Agency Aquatic Ecoregions Kuparuk River Watershed (Alaska, USA) Integrated Terrain Unit Map Terrestrial Ecosystems - Land Surface Forms of the Conterminous United States USGS Geographic Names Acquisition Plan Objectives for FY14 - The National Map Lowlands USGS Geographic Names Acquisition Plan Objectives for FY17 from The National Map - National Geospatial Data Asset (NGDA) Geographic Names Information System (GNIS) USGS Geographic Names (GNIS) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) Geographic Names Information System (GNIS) BLM REA WYB 2011 Ch01 Introduction Land Type Associations for the BLM Pinedale Field Office, Wyoming at 1:100,000 Landform, DRECP Lake Michigan basin, USA: Environmental Protection Agency Aquatic Ecoregions BLM REA WYB 2011 Ch01 Introduction Modeled Ecosystems, Steep Slopes Modeled Ecosystems, Wetbasins Modeled Ecosystems, Summits Modeled Ecosystems, Ravines Modeled Ecosystems, Floodplains AKR Exotic Plant Management (EPMT) Geodatabase Lowlands Terrestrial Ecosystems - Land Surface Forms of the Conterminous United States USGS Geographic Names Acquisition Plan Objectives for FY14 - The National Map USGS Geographic Names Acquisition Plan Objectives for FY17 from The National Map - National Geospatial Data Asset (NGDA) Geographic Names Information System (GNIS) USGS Geographic Names (GNIS) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) Geographic Names Information System (GNIS)