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

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.

Resources

Name Format Description Link
55 Landing page for access to the data https://doi.org/10.5066/P9WSF09G
55 The metadata original format https://data.usgs.gov/datacatalog/metadata/USGS.33bcea7f-b4b8-4b2d-b4cb-d6c7f81760d6.xml

Tags

  • spcmsc
  • seabed
  • coral-reefs
  • oceans
  • pacific-coastal-and-marine-science-center
  • visible-light-imaging
  • elevation
  • u-s-geological-survey
  • structure-from-motion
  • geospatial-datasets
  • st-petersburg-coastal-and-marine-science-center
  • pcmsc
  • reef-ecosystems
  • remote-sensing
  • looe-key
  • coastal-and-marine-hazards-and-resources-program
  • usgs
  • physical-habitats-and-geomorphology
  • cmhrp
  • usgs-33bcea7f-b4b8-4b2d-b4cb-d6c7f81760d6
  • state-of-florida

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