Community exposure to CoSMoS hazard zones in Ventura and Santa Barbara counties

Nathan WoodJeanne JonesPeter NgKevin HenryJamie JonesJeff PetersNina AbdollahianUSGS Western Geographic Science Center

U.S. Department of the InteriorU.S. Geological Survey

www.usgs.gov/apps/hera

Community Exposure to Coastal Hazards in California

Maps of Flood Hazard Zones

Maps of Flood Hazard Zones

Providing Guidance on SLR Scenarios

DemographySource - 2010 Census blocksAttributes:• Total residential population• Age – < 5 years and > 65 years• Ethnicity – Hispanic• Race – American Indian, Asian, Black or African American, Native Hawaiian or Pacific Islander, White, Other

• Occupancy – renters, homeowners• Group quarters – institutionalized, non-institutionalized

• Employees: Government, Manufacturing, Natural Resources, Services, Trade

• Parcel values – improved, land• Building replacement value:

Agriculture, Commercial, Education, Government, Industrial, Religious facility, Residential

Economic assets

Infrastructure• Roads – highways, secondary

streets, surface streets• Railroads• Critical facilities

• Fire stations, Hospitals, Medical facilities, Medical clinics, Medical services, Police stations, Schools

Land Cover• Developed land – National Land

Cover Database

• Wetlands – National Land Cover Database

Carpinteria1,784 residents14% in zone

Unincorporated Ventura Co.3,926 residents4% in zone

Comparative Metrics – impact of sea level rise

100 year storm, no SLR

100 year storm, 100 cm SLR

Comparative Metrics

Uncertainty extent: maximum minimum

Available data:• Total residents• Age (< 5, > 65 yrs)• Ethnicity• Race• Group quarters• Renter vs. homeowner• Female head of household with children

Available data:• Total employees• Employees by sector• Parcel values (total and by type)• Building replacement value (total and by type)

Data tables

• Provides the user with the ability to:• Examine flooding hazard exposure for an individual community• Explore changes in community exposure given multiple coastal storm and SLR scenarios• Compare the exposure of multiple communities

• Interactive maps , charts, and graphics visualize exposure in hazard zones of:• Populations• Economic assets• Land cover• Infrastructure

• For more information• Jeanne Jones (lead HERA developer) – jmjones@usgs.gov• Nathan Wood (principal investigator) – nwood@usgs.gov• HERA web application - www.usgs.gov/apps/hera• Project background - https://geography.wr.usgs.gov/science/vulnerability/HERA.html

Summary for HERA