Environmental Sensitivity Index (ESI) Feasibility Study of All-Hazards Indices Expansion
Abstract
Environmental Sensitivity Index (ESI) products are developed by the National Oceanic and Atmospheric Administration (NOAA) to support planning for and responding to coastal oil and chemical spills. ESI data describe a variety of coastal resources that are at risk from oil spills that include sensitive shorelines (e.g., marshes, tidal flats), biological resources (e.g., birds, shellfish beds), and human-use resources (e.g., public beaches, water intakes). ESI maps and datasets include shoreline types that are ranked according to their sensitivity to oil and chemical spills. This index was the original focus of ESI maps and has been a standard for industry and responders since the late 1970s. ESI products also include extensive data describing the distribution of other biological and human-use resources at risk in a coastal area, typically displayed along with the ranked shoreline types in map products.
The NOAA Office of Response and Restoration (NOAA ORR) is interested in expanding the content and application of ESIs by incorporating additional, specific sensitivity scales that enhance their utility as planning tools for a broader suite of coastal hazards than oil and chemical spills. Expanding the content and applicability of ESI products will enhance the tool as a “one-stop shop” for coastal planners and emergency responders. The goal is that NOAA ESI data will be useful for broader coastal hazard planning and response by federal, state, tribal, and municipal agencies as well as industry and the public at large.