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    • Quicklook Digital Elevation Model (DEM) of Looe Key, Florida, 2022

    Metadata Updated: August 16, 2024

    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.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date August 16, 2024
    Metadata Updated Date August 16, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date August 16, 2024
    Metadata Updated Date August 16, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/ea2afe736c3b5ed4b4e3b9de815152f9
    Identifier USGS:afe08aa6-3ecb-40f6-9b0d-b77e96b1664d
    Data Last Modified 20240814
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://datainventory.doi.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 7b320e75-c145-486b-8888-4fdd40699b1e
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -81.41016166,24.54442068,-81.40065243,24.54779751
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash df426ba1b733420346af807b6f45123aabfe5f7bda4950d077c905ee3c30d850
    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}

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