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Filters: Types: OGC WMS Layer (X)

Folders: ROOT > ScienceBase Catalog > Alaska Science Center (ASC) > _Water Ice & Landscapes ( Show all descendants )

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_ScienceBase Catalog
__Alaska Science Center (ASC)
____Water Ice & Landscapes
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This dataset contains drainage basin boundaries for 253 U.S. Geological Survey (USGS) streamgages in Alaska that had at least 5 years of daily streamflow through September 30, 2017, three of which were delineated for alternate basin conditions. This compilation includes selected boundaries produced in 2014 (https://doi.org/10.5066/P143KNEJ). Additional basin boundaries were delineated from the streamgage location to the nearest USGS Watershed Boundary Dataset (WBD) HUC boundary and along HUC boundaries from that intersection to the basin headwaters. Streamgages selected for drainage basin delineation included streamgages in Alaska that met selection criteria for a statewide study of seasonal flow regimes (Curran...
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This data package includes 481 geospatial vector polygons of historic fire perimeters associated with National Wildlife Refuges in Alaska. These polygons, originally held within the Alaska Large Fire Database (ALFD), were reviewed and found to have geospatial inaccuracies with respect to the fire they represent. They were corrected and updated based on a variety of remote sensing resources; the Monitoring Trends in Burn Severity (MTBS) database (https://www.mtbs.gov/viewer/index.html), geospatial rasters of historic fire activity derived from Landsat 1-9 imagery in the Google Earth Engine(https://earthengine.google.com) environment, and historical air photos acquired through EarthExplorer (https://earthexplorer.usgs.gov/)....
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Alaska Peninsula National Wildlife Refuge, Arctic National Wildlife Refuge, Becharof National Wildlife Refuge, Disturbance, All tags...
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This dataset contains 474 drainage basin boundaries for U.S. Geological Survey (USGS) streamgages in Alaska, including supplemental drainage basin boundaries for alternate conditions for 3 of the 471 streamgages. The basin boundaries were delineated from the streamgage location to the nearest USGS Watershed Boundary Dataset (WBD) HUC boundary and along HUC boundaries from that intersection to the basin headwaters. The dataset also includes the streamgage locations used for delineation, which consist of points snapped from the streamgage coordinates in the USGS National Water Information System to the USGS National Hydrography Dataset flowline representing the respective streams. Streamgages selected for drainage...


    map background search result map search result map Corrected Fire Perimeters of Alaska's National Wildlife Refuges Selected Basin Boundaries for USGS Streamgages in Alaska through 2014 Selected Basin Boundaries for USGS Streamgages in Alaska through 2019 Corrected Fire Perimeters of Alaska's National Wildlife Refuges Selected Basin Boundaries for USGS Streamgages in Alaska through 2014 Selected Basin Boundaries for USGS Streamgages in Alaska through 2019