Measuring land surface elevations with GPS backpack
![Man walks in shallow water up to his mid-calves, wearing waders and backpack, carrying small hand-held device.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Delft.png?itok=91RP9Mko)
Detailed Description
Visiting scientist from Delft University measuring land surface elevations with a very precise GPS device.
Sources/Usage
Public Domain.
Visiting scientist from Delft University measuring land surface elevations with a very precise GPS device.
Public Domain.