The Central California DEM covers the coastal region north of Santa Cruz to Gualala Point and extends inland to the confluence of the Sacramento and San Joaquin Rivers and seaward past the Farallon Islands and the continental shelf. The DEM has a 1 arc-second (~30 meter) cell size, and is referenced to a vertical datum of NAVD 88. A smaller, 1/3 arc-second (~10 meter) DEM of San Francisco Bay was also developed. The DEMs were built in July 2010 to support NOAA's Tsunami Program.
|Horizontal Datum||WGS 84|
|Vertical Datum||NAVD 88 (meters)|
|Vertical Transformation||Source elevation data transformed using NOAA's VDatum vertical transformation tool -- http://vdatum.noaa.gov/|
|Cell Size||1 arc-second|
|Source||NOAA / NGDC / MGG|
|Developer||NOAA / NGDC / MGG|
|Project||NOAA Tsunami Inundation|
|Contact||Barry W Eakins @ NOAA / NGDC|
WARNING: DEM not to be used for navigation.