Environmental Sensitivity Index (ESI) Atlas: American Samoa, 2004 (NCEI Accession 0002827)

Currently, the most widely used approach to sensitive environment mapping in the United States is the NOAA Environmental Sensitivity Index (ESI). This approach systematically compiles information in standard formats for coastal shoreline sensitivity, biological resources, and human-use resources. ESI maps are useful for identifying sensitive resources before a spill occurs so that protection priorities can be established and cleanup strategies designed in advance. Using ESIs in spill response and planning reduces the environmental consequences of the spill and cleanup efforts. NOAA has undertaken a wide-ranging program to promote open ESI standards and to develop digital ESI databases for high-priority coastal areas in partnerships with states and other Federal agencies. NOTE: MAPS ARE NOT TO BE USED FOR NAVIGATIONAL PURPOSES.

This ESI Atlas American Samoa: Maps and Geographic Information Systems Data contains geographic shape files (ArcView 3.x project and supporting shape and .dbf files) of the locale and identified sensitive areas and biota. Accompanying detailed Adobe Acrobat .PDF ESI maps, extensive metadata, a user guide, and files in MOSS (Map Overlay and Statistical System) format are also provided.

This data set contains sensitive biological resource data for "Coral Areas of Special Significance" in American Samoa. Coral Areas of Special Significance were designated by resource experts as those areas that should be highly prioritized for protection following spills, due to various reasons (e.g., species diversity, rare coral, endangered/threatened marine animal species, high fish/invertebrate concentrations, sensitive habitat, etc.). In this data set,
they are represented by vector points. See also the BENTHIC (Benthic Marine Habitat Polygons) data layer, part of the larger American Samoa ESI database, for additional coral information. Various biological and geographical data utilized in this atlas range from 1982-2003; data were compiled 2002-2004.