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    • High Resolution 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 and was saved as Geographic Tagged Image File Format (GeoTIFF) rasters at 1-centimeter (cm) resolution, in a 5-by-2 tile index grid. A 1-meter resolution "quicklook" version of this DEM is also included in this data release, so that users can quickly view the entire dataset at a lower resolution before downloading the higher resolution DEM.

    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/f009994915ef1cfb2bbc08f3923dc2e3
    Identifier USGS:ee1f41de-712e-4086-b51e-a60fa7ca7332
    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 a7ee10b3-8cfb-435c-96e9-743d5e74a463
    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 04cdec68194d08f49053c4aec988c48de37e1f92048816546005563a4d308876
    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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