Implemented in the map tool
Coastal Flood Exposure Mapper
NOAA Office for Coastal Management · released 2016
Visit Coastal Flood Exposure Mapper
Overlays flood-hazard layers — SLR, storm surge, king tides — with social, economic, and environmental data to show who and what is exposed in a given area.
General Information
- Geographic scope within coastal California
- Coastal United States, including California
- Tool release year and updates
- 2016
Projected Flood Information
- Annual flood risk
- No
- Annual flood risk (various return periods)
- No
- Base flood elevation
- No
- Coastal groundwater flooding
- No
- Erosion projections
- No
- FEMA flood zones
- Yes
- High tide flooding thresholds (minor/moderate/major)
- No
- King tide
- Yes
- Mapping uncertainty / confidence layers
- No
- Marsh migration space
- No
- Near-100-year storm scenario
- No
- Shoreline erosion
- No
- Storm surge / extreme tide
- Yes
- Stormwater / compound flooding
- No
- Wave run-up
- No
Shoreline Processes
- Coastal flood thresholds
- No
- Coastal groundwater
- No
- Compound flooding with stormwater runoff
- No
- Dynamic hydrodynamic modeling
- No
- Erosion / shoreline change
- No
- Habitat-based risk reduction
- No
- High tide flooding
- No
- Hurricane storm surge
- No
- King tide
- Yes
- Levee overtopping
- No
- Marsh migration
- No
- Marsh migration / habitat change
- No
- Regulatory base flood elevation
- No
- Riverine and coastal flood zones
- No
- SLR inundation
- Yes
- Shoreline erosion
- No
- Shoreline overtopping
- No
- Storm surge / extreme tide
- Yes
- Tide-gauge monitoring
- No
- Wave run-up
- No
Exposure Analysis Provided on Flooding Impacts to Assets
- Critical facilities
- Yes
- Economic / property value
- Yes
- Infrastructure & buildings
- Yes
- Natural resources / habitats
- Yes
- Population / demographics
- Yes
Data, Reports, and Summary Information Available
- Reports, summary info, or other analyses available for download
- Downloadable maps, data layers, and PDF summary reports by area.
General Information Regarding Sea Level Rise Model
- Base sea level rise model
- NOAA Sea Level Rise and Coastal Flooding Impacts elevation data.
Strengths and Limitations
- Top 3 strengths
- Broad exposure lens spanning social, economic, and natural-resource data
- Consistent NOAA methodology usable statewide or nationwide
- Well documented and actively maintained by a federal agency
- Top 3 limitations
- National tool, so California-specific nuance like local subsidence is limited
- Elevation-based flood layers, not a full dynamic storm model
- Interface can feel dense for first-time users