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Sandbars of large sand-bedded rivers of the Central U.S. serve important ecological functions to many species, including the endangered Interior Least Tern (Sternula antillarum) (ILT). ILT are colonial birds which feed on fish and nest primarily on riverine sandbars during their annual breeding season of approximately May through July, depending on region. During this time, ILT require bare sand of sufficient elevation so as not to be inundated during the period between nest initiation and fledging of hatchlings. ILT were originally listed as endangered due in part to decreases in available sandbar habitat from river channelization and impoundment. Sandbars in Central U.S. rivers used by ILT are highly dynamic,...
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This dataset consists of a map depicting the distribution of cedar along the Natchez Trace Parkway. Ground-based vegetation classification was provided by the National Park Service and mapped by the U.S. Geological Survey, National Wetlands Research Center. In the final version of "Mapping the Natchez Trace Parkway," the Cedar class was merged with the Pine class (the alliance most frequently mistaken for cedar).
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The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Appalachian Basin, Assessment Unit, Cleveland Continuous Gas, Continuous Assessment Unit, Earth Science, All tags...
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This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province, 2019. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Assessment Unit, Continuous Assessment Unit, Eastern Interior Marcellus Shale Gas, Energy Resources, Energy Resources, All tags...
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Sandbars of large sand-bedded rivers of the Central U.S. serve important ecological functions to many species, including the endangered Interior Least Tern (Sternula antillarum) (ILT). ILT are colonial birds which feed on fish and nest primarily on riverine sandbars during their annual breeding season of approximately May through July, depending on region. During this time, ILT require bare sand of sufficient elevation so as not to be inundated during the period between nest initiation and fledging of hatchlings. ILT were originally listed as endangered due in part to decreases in available sandbar habitat from river channelization and impoundment. Sandbars in Central U.S. rivers used by ILT are highly dynamic,...
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This dataset represents aerial photography of the Natchez Trace Parkway that was taken in late September and early October of 2004. Images were acquired during leaf-on conditions as required by the National Park Service (NPS) to accomplish their ground-based vegetation classification. Nearly 400 aerial photography frames were scanned and orthorectified to generate digital orthophoto quarter quads (DOQQs). These were cut to match existing DOQQs creating a total of 235 DOQQs for the entire 715 km long Parkway. For ease of use, the DOQQs were grouped into 11 mosaics, each covering a section of the Parkway. At the request of the NPS, each mosaic was divided into ten tiles to allow for efficient loading on less robust...
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Sandbars of large sand-bedded rivers of the Central U.S. serve important ecological functions to many species, including the endangered Interior Least Tern (Sternula antillarum) (ILT). ILT are colonial birds which feed on fish and nest primarily on riverine sandbars during their annual breeding season of approximately May through July, depending on region. During this time, ILT require bare sand of sufficient elevation so as not to be inundated during the period between nest initiation and fledging of hatchlings. ILT were originally listed as endangered due in part to decreases in available sandbar habitat from river channelization and impoundment. Sandbars in Central U.S. rivers used by ILT are highly dynamic,...
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This dataset consists of linear features depicting the main road running through the Natchez Trace Parkway and other roads visible on the color infrared photography. The Parkway is a 715-km roadway that historically connected the southern portions of the Mississippi River to the salt licks in central Tennessee. The vector data represent the roadway of the Parkway at an approximate along-track (parallel and perpendicular to the road) with a spatial accuracy of about 3 meters or less.
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This dataset consists of a map depicting the distribution of sweetgum-oak mixed forests along the Natchez Trace Parkway. Ground-based vegetation classification was provided by the National Park Service and mapped by the U.S. Geological Survey, National Wetlands Research Center. In the final version of "Mapping the Natchez Trace Parkway," the Sweetgum-Oak class was merged with the Sweetgum class because most of the time it co-occurred with the Sweetgum field sites.
Tags: Adams County, Alabama, Attala County, Chickasaw County, Choctaw County, All tags...
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This dataset defines the symbology for the landcover map of the Natchez Trace Parkway. The map shows the distribution of 18 landcover classes based on the National Vegetation Classification Standard. Ground-based vegetation classification was provided by National Park Service (NPS). The mapping output and layer delineate grasses, road-developed areas, scrub-shrub, shrubland, plantation, water bodies, areas of white oak, oak, pine-oak, pine-cedar, pine-sweetgum, sweetgum (including sweetgum-oak), scattered trees, swamp forest, irregular classes, aquatic vegetation, invasive species, canopy gaps, and clouds. Mapped classes that have been digitized are noted with an asterisk (*) in the legend.
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This dataset consists of a map depicting the distribution of irregular classes along the Natchez Trace Parkway. Irregular classes are those forest alliances that were usually represented by one or two field sites. In addition, these alliances did not align with any of the major forest classes and for the most part did not contain species that were common to other alliances. Ground-based vegetation classification was provided by the National Park Service and mapped by the U.S. Geological Survey, National Wetlands Research Center.
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This dataset consists of a map depicting the landcover of the Natchez Trace Parkway. The mapping output was created using mosaiced color infrared aerial photography of the Parkway. The map shows the distribution of 18 landcover classes based on the National Vegetation Classification Standard. Ground-based vegetation classification was provided by the National Park Service (NPS). The mapping output delineates grasses, road-developed areas, scrub-shrub, shrubland, plantation, water bodies, areas of white oak, oak, pine-oak, pine-cedar, pine-sweetgum, sweetgum (including sweetgum-oak), scattered trees, swamp forest, irregular classes, aquatic vegetation, invasive species, canopy gaps, and clouds.Total mapped area includes...
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Sandbars of large sand-bedded rivers of the Central U.S. serve important ecological functions to many species, including the endangered Interior Least Tern (Sternula antillarum) (ILT). ILT are colonial birds which feed on fish and nest primarily on riverine sandbars during their annual breeding season of approximately May through July, depending on region. During this time, ILT require bare sand of sufficient elevation so as not to be inundated during the period between nest initiation and fledging of hatchlings. ILT were originally listed as endangered due in part to decreases in available sandbar habitat from river channelization and impoundment. Sandbars in Central U.S. rivers used by ILT are highly dynamic,...
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Sandbars of large sand-bedded rivers of the Central U.S. serve important ecological functions to many species, including the endangered Interior Least Tern (Sternula antillarum) (ILT). ILT are colonial birds which feed on fish and nest primarily on riverine sandbars during their annual breeding season of approximately May through July, depending on region. During this time, ILT require bare sand of sufficient elevation so as not to be inundated during the period between nest initiation and fledging of hatchlings. ILT were originally listed as endangered due in part to decreases in available sandbar habitat from river channelization and impoundment. Sandbars in Central U.S. rivers used by ILT are highly dynamic,...


    map background search result map search result map Cedar Distribution along the Natchez Trace Parkway 2004 Invasive Species along the Natchez Trace Parkway 2004 Irregular Vegetation Classes along the Natchez Trace Parkway 2004 Roads of the Natchez Trace Parkway 2004 Sweetgum-Oak Distribution along the Natchez Trace Parkway 2004 Aquatic Vegetation along the Natchez Trace Parkway 2004 Digital Orthoimagery for Mapping the Natchez Trace Parkway 2004 Mapping Landcover of the Natchez Trace Parkway 2004-2005 Photographic Centers of Aerial Images Taken for Mapping the Natchez Trace Parkway 2004 Table of Photographic Centers from Aerial Images Taken for Mapping the Natchez Trace Parkway 2004 Legend Layer for Mapping Landcover of the Natchez Trace Parkway 2004-2005 Interior least tern sandbar nesting habitat measurements from Landsat TM imagery Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: Active Channel Masks Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: Land Cover Type Addition Files Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: National Land Cover Dataset Buffers Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: Land Cover Type Classification Files USGS National and Global Oil and Gas Assessment Project-Appalachian Basin Province, Upper Devonian Shales Assessment Unit Boundaries and Assessment Input Forms USGS National and Global Oil and Gas Assessment Project - Appalachian Basin Province, Middle Devonian Marcellus Shale Assessment Units and Input Data Forms Cedar Distribution along the Natchez Trace Parkway 2004 Invasive Species along the Natchez Trace Parkway 2004 Irregular Vegetation Classes along the Natchez Trace Parkway 2004 Roads of the Natchez Trace Parkway 2004 Sweetgum-Oak Distribution along the Natchez Trace Parkway 2004 Aquatic Vegetation along the Natchez Trace Parkway 2004 Photographic Centers of Aerial Images Taken for Mapping the Natchez Trace Parkway 2004 Table of Photographic Centers from Aerial Images Taken for Mapping the Natchez Trace Parkway 2004 Digital Orthoimagery for Mapping the Natchez Trace Parkway 2004 Mapping Landcover of the Natchez Trace Parkway 2004-2005 Legend Layer for Mapping Landcover of the Natchez Trace Parkway 2004-2005 USGS National and Global Oil and Gas Assessment Project-Appalachian Basin Province, Upper Devonian Shales Assessment Unit Boundaries and Assessment Input Forms USGS National and Global Oil and Gas Assessment Project - Appalachian Basin Province, Middle Devonian Marcellus Shale Assessment Units and Input Data Forms Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: Active Channel Masks Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: Land Cover Type Addition Files Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: National Land Cover Dataset Buffers Interior Least Tern Sandbar Nesting Habitat Measurements from Landsat TM Imagery: Land Cover Type Classification Files Interior least tern sandbar nesting habitat measurements from Landsat TM imagery