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Land cover rasters (raw data) - Selawik National Wildlife Refuge

Metadata Updated: October 23, 2025

This geodatabase contains three (3) rasters, two (2) of which represent landcover for Selawik National Wildlife Refuge and surrounding areas. The third raster contains plot-based ground characteristics for pixels classified with high confidence. The two landcover rasters contain attribute information for soils, vegetation, and ecotypes; and differ slightly in their classifications because one encompasses a broader geographic area (lc_arcn), and therefore some classes are more generalized than in the other (lc_nokose).

The classification of local-scale ecosystems (ecotypes) combines physiography (e.g., riverine, coastal), topography (DEM), geology and vegetation from the landcover spectral database derived from the satellite image processing. These layers are used to model ecotypes in a way that best partitions geomorphic, hydrologic, pedologic, and vegetative characteristics.

Map projection: Albers Alaska, NAD 83, meters.

NOTE The lc_nokose raster was used for the landcover classifications in the final report, as it is more specific to Selawik National Wildlife Refuge than the other landcover raster (lc_arcn), which includes some surrounding National Park Service lands and differs slightly in its classifications at the pixel level.

PDF maps are provided here for reference to help visualize what the data look like before downloading. Full resolution maps can be viewed in the final report (ServCat #49603).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date September 11, 2025
Metadata Updated Date October 23, 2025

Metadata Source

Harvested from DOI FWS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 11, 2025
Metadata Updated Date October 23, 2025
Publisher U.S. Fish and Wildlife Service
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/fws-servcat-83702
Data First Published 2009-11-01T00:00:00Z
Data Last Modified 2009-11-01T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:18
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/fws-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 1d8f8fb9-05ef-47b7-82b1-b086385179c3
Harvest Source Id f51f1f6c-4e4a-4e0a-b4e3-a5577c6dcc19
Harvest Source Title DOI FWS DCAT-US
Homepage URL https://iris.fws.gov/APPS/ServCat/Reference/Profile/83702
Metadata Type geospatial
Old Spatial -161.88533,65.9857,-156.446075,67.0175552
Program Code 010:094, 010:028
Source Datajson Identifier True
Source Hash 3d5f0e6abc9861e0d119ff570b5eaa0cb049695135330403b507179494ba9020
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -161.88533, 65.9857, -161.88533, 67.0175552, -156.446075, 67.0175552, -156.446075, 65.9857, -161.88533, 65.9857}

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