20220721 16571600 1.0 TRUE MHHW 2100 (55-inch SLR) The polygon represents the extent of inundation due to Mean Higher High Water (MHHW), after a 1.4 meter sea-level rise (scenario for year 2100), for the California coast (excluding the San Francisco Bay). The current inundation due to MHHW was based on NOAA tide stations elevation data (mhhw_2000 raster), to which 140 centimeters were added to the Z-value to generate this data. Heberger, Matthew, and Herrera, Pablo, 2009, California coast 100-yr flood, 2000: The Impacts of Sea-Level Rise on the California Coast, Pacific Institute, Oakland CA.