A Seamless, High-Resolution Digital Elevation Model (DEM) of the North-Central California Coast

By Amy C. Foxgrover and Patrick L. Barnard

Abstract

A seamless, 2-meter resolution digital elevation model (DEM) of the north-central California coast has been created from the most recent high-resolution bathymetric and topographic datasets available. The DEM extends approximately 150 kilometers along the California coastline, from Half Moon Bay north to Bodega Head. Coverage extends inland to an elevation of +20 meters and offshore to at least the 3 nautical mile limit of state waters. This report describes the procedures of DEM construction, details the input data sources, and provides the DEM for download in both ESRI Arc ASCII and GeoTIFF file formats with accompanying metadata.

First posted May 23, 2012

Text

Report PDF (2.2 MB)

Data

Metadata folder (741 kB total)

DEM ASCII files zip; all 14 in one package (1.04 GB compressed; 6.45 GB expanded)
DEM ASCII files folder; 14 individual files (37 to 167 MB compressed)

DEM GeoTIFF files zip; all 14 sets in one package (1.23 GB compressed; 1.29 GB expanded)
DEM GeoTIFF files folder; 14 individual pair (.tif and .tfw) (33 to 238 MB compressed)

Shapefiles folder (8.6 MB total)

This report is available only on the Web.

For additional information:
Contact Information, Pacific Coastal and Marine Science Center
U.S. Geological Survey
Pacific Science Center
400 Natural Bridges Drive
Santa Cruz, CA 95060
http://walrus.wr.usgs.gov/

Part of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Foxgrover, A.C., and Barnard, P.L., 2012, A seamless, high-resolution digital elevation model (DEM) of the north-central California coast: U.S. Geological Survey Data Series 684, 11 p. and data files. (Available at https://pubs.usgs.gov/ds/684/.)

Contents

Abstract

Introduction

DEM Construction Methods

DEM Accuracy and Limitations

The Digital Files

Acknowledgments

References Cited

data files