Digital elevation model (DEM) of Looe Key, Florida, 2021

Online link https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/CMGDS_DR_tool/DR_F7HD7TKM/DR_P9WSF09G/SQUID5_LKR_2021_DEM_1cm_metadata.faq.html
Description A digital elevation model (DEM) was created from underwater images collected at Looe Key, Florida, in July 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 created in Metashape (ver. 1.6.6) from the point cloud, and includes points from both classes. The DEM covers a rectangular area of seafloor approximately 720x100 meters (0.072 square kilometers) in size and was saved as a tiled GeoTIFF raster at 1-centimeter resolution. [More]
Originators Hatcher, Gerald A.; Kranenburg, Christine J.; Warrick, Jonathan A.; Bosse, Stephen T.; Zawada, David G.; Yates, Kimberly K.; and Johnson, Selena A.

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