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Quicklook Digital Elevation Model (DEM) of Looe Key, Florida, 2022
A digital elevation model (DEM) was created from underwater images collected at Looe Key (LKR), Florida, in July 2022 using the SfM (Structure-from-Motion) Quantitative Underwater Imaging Device with 5 cameras (SQUID-5) system. The underwater images were processed using 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 850x160 meters (m) (0.13 square kilometers [km]) in size. This "quicklook" version of this dataset was saved as a Geographic Tagged Image File Format (GeoTIFF) raster at 1-meter resolution, so that users can quickly view the entire dataset at a lower resolution before downloading the higher resolution raster tiles. The tiled, 1-centimeter (cm) high-resolution version of the DEM is also included in this data release.
Complete Metadata
| @id | http://datainventory.doi.gov/id/dataset/ea2afe736c3b5ed4b4e3b9de815152f9 |
|---|---|
| bureauCode |
[ "010:12" ] |
| identifier | USGS:afe08aa6-3ecb-40f6-9b0d-b77e96b1664d |
| spatial | -81.41016166,24.54442068,-81.40065243,24.54779751 |
| theme |
[ "geospatial" ] |
