Surveying beaches near Ventura, CA
Detailed Description
USGS geomorphologist Pat Limber drives an all-terrain vehicle equipped with differential GPS, on San Buenaventura Beach south of Ventura Pier, Ventura California, collects topographic, or elevation and contour, data. These data, accurate to about 1 inch (about 2 centimeters) both horizontally and vertically, are used to monitor seasonal beach changes.
Sources/Usage
Public Domain.