Acoustic backscatter
![Seafloor map shows the varied intensity of the sonar pulse returned to the ship depending on the substrate it encounters.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/sim3225_sheet3_0.jpg?itok=Fg-y5Mh3)
Detailed Description
Smaller version of Acoustic Backscatter (Sheet 3) from USGS Scientific Investigations Map 3225, California State Waters Map Series—Hueneme Canyon and Vicinity, California, as an example of the different kinds of maps (“sheets”) produced within a coastal map “block”.
Sources/Usage
Public Domain.