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Western Alaska ESI: INDEX (Index Polygons)

Published by Office of Response and Restoration | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2003-07-01T00:00:00.000+00:00
This data set contains vector polygons representing the boundaries of all the hardcopy cartographic products produced as part of the Environmental Sensitivity Index (ESI) for Western Alaska, as well as digital data extents. This data set comprises a portion of the ESI data for Western Alaska. ESI data characterize the marine and coastal environments and wildlife by their sensitivity to spilled oil. The ESI data include information for three main components: shoreline habitats, sensitive biological resources, and human-use resources. See also the BIOINDEX (Biological Index Polygons) data layer, part of the larger Western Alaska ESI database, for additional boundary information.

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