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Location Folder Show Tree ROOT _Users Filters Date Range Past year (2) Past month (1) Past week (0) Past day (0) Custom range... To   Search Types Downloadable (2) GeoTIFF (2) Map Service (2) Raster (2) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Devendra Dahal U.S. Geological Survey Daniel H Doctor U.S. Geological Survey - ScienceBase Rachel (Contractor) L Jackson More... Categories Data (2) Tag Types Place (2) Theme (2) Harvest Set (2) Tag Schemes Common geographic areas (2) exotic species (1) USGS Thesaurus (2) ISO 19115 Topic Category (1) Maryland (1) View Results as: JSON ATOM CSV Browse Folder

Fractional Estimates of Multiple Exotic Annual Grass (EAG) Species in the Sagebrush Biome, USA, 2016 - 2023 (ver. 4.0, July 2024) This dataset release provides historical (2016 - 2023) estimates of fractional cover for Exotic Annual Grass (EAG) species and a native perennial bunch grass in the arid and semi-arid rangelands of the western United States. The dataset includes four (five for 2023) fractional cover maps per year, accompanied by corresponding confidence maps, for a group of 16 species of EAGs, Cheatgrass (Bromus tectorum); Medusahead (Taeniatherum caput-medusae); and Sandberg Bluegrass (Poa secunda). Field Brome (Bromus arvensis) is added as individual map species in 2023. The data were generated using a combination of field observations from Bureau of Land Management (BLM) Assessment, Inventory, and Monitoring (AIM) plots; remotely... Categories: Data, Data Release - Revised; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Arizona, California, Colorado, Great Basin, Harmonized Landsat Sentinel, All tags... Idaho, Kansas, Montana, NDVI, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Texas brome, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, annual grass, annual herbaceous, cheatgrass, exotic, invasive species, medusahead, nonindigenous species, noxious, perennial bunch grass, poa secunda, red brome, remote sensing, rye brome, sagebrush, soft brome, western United States, Fewer tags Enhanced Terrain Imagery of the Hagerstown 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution (ver. 1.1, February 2024) This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Hagerstown 30 x 60 minute quadrangle in Pennsylvania, Maryland, and part of West Virginia. The source data used to construct this imagery consists of 1-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2016 and 2023. The data were processed using geographic information systems (GIS) software. The data is projected in WGS 1984 Web Mercator. This representation illustrates the terrain as a hillshade with contrast adjusted to highlight local relief according to a topographic position index (TPI) calculation. First release: 2012 Revised: February... Categories: Data, Data Release - Revised; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Lidar, Maryland, Pennsylvania, USGS Science Data Catalog (SDC), West Virginia, All tags... elevation, imageryBaseMapsEarthCover, lidar, topography, Fewer tags