Tropical Cyclone Exposure
These data represent modeled, historical exposure of U.S. offshore and coastal waters to tropical cyclone activity within the North Atlantic Ocean basin. BOEM Outer Continental Shelf Lease Blocks and equivalent areas for coastal waters were used to construct the grid by which exposure was quantified. Exposure was quantified using intersecting storm tracks, overlapping wind intensity areas, and mathematical return intervals. Symbology is based on the modeled occurrence of tropical storm force (34-knot) or greater winds per lease block. Wind climatology was based on Extended Best Track re-analysis data, using overwater wind data only. Due to the exclusion of inland wind values used within the model outputs, the interpretation of wind exposure metrics within coastal waters should be interpreted carefully. Storm tracks were provided by International Best Track Archive for Climate Stewardship (IBTrACS) data for the period 1900-2013. Data represent past climatology only and do not suggest predicted future impacts or exposure.
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