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Western Alaska ESI: BIOINDEX (Biological 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 the 1:250,000 map boundaries used in the creation of the Environmental Sensitivity Index (ESI) for Western Alaska. Specifically, these data were used for the creation of the hardcopy biology information maps. 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 INDEX (Index Polygons) data layer, part of the larger Western Alaska ESI database, for additional boundary information.

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