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Coastal Storm Modeling System (CoSMoS) for Southern California, v3.0, Phase 2


Publication Date


Barnard, P.L., Erikson, L.H., Foxgrover, A.C., Limber, P.W., O'Neill, A.C., and Vitousek, S., 2018, Coastal Storm Modeling System (CoSMoS) for Southern California, v3.0, Phase 2 (ver. 1g, May 2018): U.S. Geological Survey data release,


First release: Nov 2015 Revised: Jan 2016 (ver. 1a) Revised: Oct 2016 (ver. 1b) Revised: Jan 2017 (ver. 1c) Revised: Feb 2017 (ver. 1d) Revised: Apr 2017 (ver. 1e) Revised: Jun 2017 (ver. 1f) Revised: May 2018 (ver. 1g) The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS v3.0 for Southern California shows projections for future climate scenarios (sea-level rise and storms) to provide emergency responders and coastal planners with critical storm-hazards information that can be used to increase public safety, mitigate physical damages, and more [...]

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CoSMoSv3Phase2_dataregions.png thumbnail 940.83 KB image/png
“update history”
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CoSMoS_SoCalv3_Phase2_summary_of_methods.pdf 2.61 MB application/pdf


These data are intended for policy makers, resource managers, science researchers, students, and the general public. These data can be used with geographic information systems or other software to identify and assess possible areas of vulnerability. These data are not intended to be used for navigation. This work is part of on-going modeling efforts for California and the western United States. For more information on CoSMoS implementation, see


Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. The U.S. Geological Survey provides these data as is for a quick reference, emergency planning tool but assumes no legal liability or responsibility resulting from the use of this information. The suggestions and illustrations included in these data are intended to improve coastal-flood awareness and preparedness; however, they do not guarantee the safety of an individual or structure. The contributors and sponsors of this product do not assume liability for any injury, death, property damage, or other effects of coastal flooding.
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Spatial Services

ScienceBase WMS


  • Coastal Storm Modeling System (CoSMoS)
  • USGS Data Release Products



Data source
Input directly

Additional Information


Type Scheme Key
DOI doi:10.5066/F7T151Q4

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