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Pacific Coastal and Marine Science Center

Coastal Processes

CoSMoS 3.0: Southern California

In progress

Preliminary Phase 1 data (100-year storm) available

Location map of Southern California work.

Above: Southern California study area

An updated Southern California project is targeted for completion in summer 2016. Preliminary data from a 100-year storm event and several sea level rise scenarios are available late 2015. Funding provided from the California Coastal Conservancy, with additional support from the City of Imperial Beach, California Department of Fish and Wildlife and Tijuana River National Estuarine Reserve, will stimulate this multi-agency collaboration featuring top coastal and climate scientists from Scripps, Oregon State University, private sector, and USGS. The work supports federal and state-supported climate change guidance (e.g. Coastal Commission), vulnerability assessments (e.g., LCP updates, OPC/Coastal Conservancy grants, CalTrans) and emergency response (e.g., California Office of Emergency Services).

Model enhancements for Southern California include:

  • Improved system methodology from CoSMoS 1.0 for more accurate flood projections in high-interest embayments and estuaries
  • Long-term coastal evolution projections for sandy beaches and cliffs produced from a collection of state-of-the-art models and extensive historical data
  • Downscaled winds from Global Climate Model (GCM) data for locally-generated seas and surge
  • Discharge from rivers for event response and long-term sediment supply
  • An improved baseline elevation DEM that incorporates recent LIDAR surveys collected by the California Coastal Conservancy.

Collaborative Studies

Partnering USGS projects will use hazard projections from CoSMoS 3.0 to pilot groundwater and socioeconomic impacts investigations throughout Southern California.

Above: A computationally-efficient one-line shoreline model used to determine long-term evolution of a sandy beach in CoSMoS 3.0. This one-line model is specifically developed for century-scale projections in Southern California.

Download Model Projections

Download zip files containing essential metadata information and model projections for CoSMoS 3.0.

Description Format Metadata File (compressed)
CoSMoS Phase 1 (100-year storm; SLR 000-200cm) flood projections: border of Mexico to Pt. Conception KMZ and shapefile XML CoSMoS_Phase1_flood
CoSMoS-COAST shoreline projections for Southern California KMZ and shapefile XML CoSMoS_COAST_shoreline_model
CoSMoS cliff retreat projections for Southern California KMZ and shapefile XML Coastal_CliffEdgeProjections_labeled
CoSMoS Phase 1 wave hazards:100-year storm; SLR 0 cm GeoTIFF XML CoSMoS_Phase1_Hs_SLR000_W100
CoSMoS Phase 1 wave hazards:100-year storm; SLR 50 cm GeoTIFF XML CoSMoS_Phase1_Hs_SLR050_W100
CoSMoS Phase 1 wave hazards:100-year storm; SLR 100 cm GeoTIFF XML CoSMoS_Phase1_Hs_SLR100_W100
CoSMoS Phase 1 wave hazards:100-year storm; SLR 150 cm GeoTIFF XML CoSMoS_Phase1_Hs_SLR150_W100
CoSMoS Phase 1 wave hazards:100-year storm; SLR 200 cm GeoTIFF XML CoSMoS_Phase1_Hs_SLR200_W100
CoSMoS Phase 1 ocean current hazards:100-year storm; SLR 0 cm GeoTIFF XML CoSMoS_Phase1_V_SLR000_W100
CoSMoS Phase 1 ocean current hazards:100-year storm; SLR 50 cm GeoTIFF XML CoSMoS_Phase1_V_SLR050_W100
CoSMoS Phase 1 wave hazards:100-year storm; SLR 100 cm GeoTIFF XML CoSMoS_Phase1_V_SLR100_W100
CoSMoS Phase 1 ocean current hazards:100-year storm; SLR 150 cm GeoTIFF XML CoSMoS_Phase1_V_SLR150_W100
CoSMoS Phase 1 ocean current hazards:100-year storm; SLR 200 cm GeoTIFF XML CoSMoS_Phase1_V_SLR200_W100
CoSMoS Phase 1 (100-year storm; SLR 000-200 cm) flood depth projections GeoTIFF XML CoSMoS_Phase1_flood_depth

Disclaimer

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 images 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.

Use of trade names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey.

 

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URL: https://walrus.wr.usgs.gov/coastal_processes/cosmos/socal3.0/
Site designed, created, and maintained by: Laura Zink Torresan
Questions to: Patrick Barnard
Page Last Modified: 14 September 2016 (lzt)