In Harm’s Way

California Coastal Protection Network
Surfrider Foundation
Orange County Coastkeeper

Simulations prepared by Virtual Planet and commissioned by California Coastal Protection Network.

The images featured in this film were produced based on the best available science and models as follows:

Sea Level Rise Scenarios:
Data accessed from here: https://data.pointblue.org/apps/ocof/cms/index.php?page=flood-map

“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, https://doi.org/10.5066/F7T151Q4.


4.1ft of Sea Level Rise combined with a 100-year storm

4.9ft of Sea Level Rise combined with a 100-year storm

6.6 ft of Sea Level Rise combined with a 100-year storm


Tsunami Inundation Map for Emergency Planning Seal Beach Quadrangle prepared by

California Emergency Management Agency; California Geological Survey; and University of Southern California. https://www.conservation.ca.gov/cgs/tsunami/maps

Earthquake Faults Data:

City of Huntington Beach EOC


Orange County Flood Control District:

2016 Orange County Infrastructure Report Card


Groundwater Table and additional Data:

Revell, D., “Huntington Beach Desalination Review of Sea Level Rise Hazards”,2018.


Backup Information

The State of Orange County’s Infrastructure, American Society of Civil Engineers, Orange County Branch.

 — see page 15 of the presentation on this link:


It’s from 2016, though it was cited more recently in the County’s 2019-2023 Comprehensive Economic Strategy report:


Interestingly, that 90-year lag was unimproved from an earlier presentation from 2011 — at the 2011 Orange County City Infrastructure Summit, Association of California Cities (see at 1:26 in the video at this link):



The images and simulations are based on the best available science – including CoSMoS 3.0 sea-level rise projections developed by the United States Geological Survey (USGS) that have been previously used in multiple studies in this area. Virtual Planet’s work was commissioned by the California Coastal Protection Network. The views or opinions expressed during the film do not necessarily represent those of Virtual Planet Technologies or its employees.