About this 3D model

NOAA has combined offshore bathymetry with land topography to create coastal relief models of the United States at 3 arc second intervals. A portion of interest can be downloaded using an online program. http://www.ngdc.noaa.gov/mgg/coastal/crm.html A small section of the central California coast was downloaded and used to create a relief map of San Francisco. Source code is provided. Although the data file can be obtained from the NOAA web site a zipped version is included for convenience.