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.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://ddi.doi.gov/usgs-data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-afe08aa6-3ecb-40f6-9b0d-b77e96b1664d
metadata_type geospatial
modified 2024-08-14T00:00:00Z
old-spatial -81.41016166, 24.54442068, -81.40065243, 24.54779751
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash e6cb5c4f9274eab1bf9b432360d2b2383481dde8e5004f89bcae045c86254ea0
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-81.41016166, 24.54442068], [-81.41016166, 24.54779751], [ -81.40065243, 24.54779751], [ -81.40065243, 24.54442068], [-81.41016166, 24.54442068]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • cmhrp
  • coastal-and-marine-hazards-and-resources-program
  • coral-reefs
  • elevation
  • geospatial-datasets
  • looe-key
  • oceans
  • pacific-coastal-and-marine-science-center
  • pcmsc
  • physical-habitats-and-geomorphology
  • reef-ecosystems
  • remote-sensing
  • seabed
  • spcmsc
  • st-petersburg-coastal-and-marine-science-center
  • state-of-florida
  • structure-from-motion
  • u-s-geological-survey
  • usgs
  • usgs-afe08aa6-3ecb-40f6-9b0d-b77e96b1664d
  • visible-light-imaging
isopen False
license_id notspecified
license_title License not specified
maintainer SPCMSC Data Management Group
maintainer_email gs-g-spcmsc_data_inquiries@usgs.gov
metadata_created 2025-09-24T00:00:57.779862
metadata_modified 2025-09-24T00:00:57.779873
notes 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.
num_resources 2
num_tags 29
title Quicklook Digital Elevation Model (DEM) of Looe Key, Florida, 2022