Geologist explains photo analysis of Calif. coastal cliffs
![man pointing to image on computer screen in an office setting](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/JonRevamp01106.png?itok=EpqLKnOv)
Detailed Description
USGS research geologist Jon Warrick explains how his team applied structure-from-motion analysis to photos from the California Coastal Records Project to measure coastal change. Jon Warrick explains a “difference map” constructed from structure-in-motion data. Red areas indicate loss of material (erosion); blue areas show addition of material (deposition).
Sources/Usage
Public Domain.