Equipment: SQUID-5

Dataset Name: Bathymetric digital elevation model (DEM) of Eastern Dry Rocks coral reef, Florida, 2021

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.

Contact: Gerry Hatcher ([email protected])

Format: GeoTIFF

Data Location: https://doi.org/10.5066/P93RIIG9

Metadata URL: https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/CMGDS_DR_tool/DR_P93RIIG9/SQUID5_EDR_2021_DEM_1cm_metadata.xml

Supplementary Info: