Abstract:
Projected coastal squeeze derived from CoSMoS Phase 2 shoreline change and cliff retreat projections.
Projected coastal squeeze extents illustrate the available area between shoreline (mean high water; MHW) positions and man-made structures and barriers (referred to as non-erodible structures) or cliff-top retreat, as applicable, for a range of sea-level rise scenarios.
The coastal squeeze polygons include results from the Coastal Storm Modeling System (CoSMoS) shoreline change (CoSMoS-COAST; Vitousek and others, 2017; available at
https://www.sciencebase.gov/catalog/item/57f426b9e4b0bc0bec033fad) and cliff retreat models (Limber and others, 2015; available at
https://www.sciencebase.gov/catalog/item/57f4234de4b0bc0bec033f90) using future wave-climate conditions derived from Global Climate Models (GCMs). Coastal squeeze areas are identified and defined from combined model projections, using model scenarios where erosion was limited by non-erodible structures (for shoreline change models) and armoring (for cliff retreat models; both cliff and shoreline cases referred to as 'hold the line') and where no beach-nourishment was included. Coastal squeeze projections are defined for each sea-level rise scenario.
Shoreline change and cliff retreat model details and data sources are outlined in CoSMoS_3.0_Phase_2_Southern_California_Bight:_Summary_of_data_and_methods (available at
https://www.sciencebase.gov/catalog/file/get/57f1d4f3e4b0bc0bebfee139?name=CoSMoS_SoCalv3_Phase2_summary_of_methods.pdf). Phase 2 data for Southern California include information for the coast from the border of Mexico to Pt. Conception. Please read the Summary of methods and inspect output carefully. Data are complete for the information presented.
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.
Supplemental_Information:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5956b7bbe4b0d1f9f050dc2f
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Physical Habitats and Geomorphology
Theme:
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: Hazards Planning
Theme_Keyword: Ocean Waves
Theme_Keyword: Ocean Winds
Theme_Keyword: Beaches
Theme_Keyword: Erosion
Theme_Keyword: Sea Level Rise
Theme_Keyword: Storm Surge
Theme_Keyword: Extreme Weather
Theme_Keyword: Floods
Theme_Keyword: Water Depth
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Climate Change
Theme_Keyword: Storms
Theme_Keyword: Wind
Theme_Keyword: Floods
Theme_Keyword: Sea-level Change
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans
Theme_Keyword: ClimatologyMeteorologyAtmosphere
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: sea level change
Theme_Keyword: waves
Theme_Keyword: floods
Theme_Keyword: coastal erosion
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Santa Barbara County
Place_Keyword: Ventura County
Place_Keyword: Los Angeles County
Place_Keyword: Orange County
Place_Keyword: San Diego County
Place_Keyword: State of California
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Southern California
Place_Keyword: Southern California Bight
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data.
Citation_Information:
Originator: Vitousek, S
Originator: Barnard, P. L.
Originator: Limber, P.
Originator: Erikson, L. H.
Originator: Cole, B.
Publication_Date: 2017
Title:
A model integrating longshore and cross-shore processes for predicting long-term shoreline response to climate change
Other_Citation_Details:
Vitousek, S., Barnard, P. L., Limber, P., Erikson, L. H., and Cole, B.,2017, A model integrating longshore and cross-shore processes for predicting long-term shoreline response to climate change, Journal of Geophysical Research Earth Surface, 122, doi:10.1002/2016JF004065
Citation_Information:
Originator: Limber, P.
Originator: Barnard, P. L.
Originator: Hapke, C.
Publication_Date: 2015
Title:
Towards projecting the retreat of California's coastal cliffs during the 21st century
Other_Citation_Details:
Limber, P., Barnard, P.L., and Hapke, C., 2015, Towards projecting the retreat of California's coastal cliffs during the 21st century. The Proceedings of the Coastal Sediments 2015, World Scientific
