The north coast of California will follow.Īll modeling results are available as GIS shapefiles, with accompanying metadata, at USGS ScienceBase-Catalog. Arena), San Francisco Bay, southern California, and the central California coast. Locations of currently available CoSMoS projections.ĬoSMoS projections are currently available for the north-central coast (Half Moon Bay to Pt. This allows users to manage and meet their own planning horizons and specify degrees of risk tolerance. Projections of multiple storm scenarios (daily conditions, annual storm, 20-year- and 100-year-return intervals) are provided under a suite of sea-level rise scenarios ranging from 0 to 2 meters (0 to 6.6 feet), along with an extreme 5-meter (16-foot) scenario. Rather than relying on historic storm records, CoSMoS uses wind and pressure from global climate models to project coastal storms under changing climatic conditions during the 21st century. CoSMoS models all the relevant physics of a coastal storm (e.g.,tides, waves, and storm surge), which are then scaled down to local flood projections for use in community-level coastal planning and decision-making. The Coastal Storm Modeling System (CoSMoS) is a dynamic modeling approach that has been developed by the United States Geological Survey in order to allow more detailed predictions of coastal flooding due to both future sea-level rise and storms integrated with long-term coastal evolution (i.e., beach changes and cliff/bluff retreat) over large geographic areas (100s of kilometers). Results displayed on Our Coast, Our Future flood mapper. Example of CoSMoS model output for San Diego showing duration of flooding.
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