Bathymetric digital elevation model (DEM) of Eastern Dry Rocks coral reef, Florida, 2021
![Abstract looking shapes show the water depth near a coral reef: shallower shapes at top and deeper shapes at bottom](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/DEM_example.jpg?itok=qp2-gF1R)
Detailed Description
A digital elevation model (DEM) was created from underwater images collected at Eastern Dry Rocks coral reef near Key West, Florida, in May 2021 using the SQUID-5 camera system. The underwater images were processed using Structure-from-Motion (SfM) photogrammetry techniques into a classified two-class ('unclassified' and 'low noise') 3D point cloud. The DEM was derived in Metashape (ver. 1.6.5) from the point cloud, but it excludes the 'low noise' class. The DEM covers a rectangular area of seafloor approximately 800x160 meters (0.12 square kilometers) in size and was saved as a tiled GeoTIFF raster at 1-cm resolution.
Sources/Usage
Public Domain.