Bathymetric digital elevation model (DEM) of Eastern Dry Rocks coral reef, Florida, 2021

Metadata Updated: October 29, 2023

A digital elevation model (DEM) was created from underwater images collected at Eastern Dry Rocks coral reef near Key West, Florida, in May 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 derived in Metashape (ver. 1.6.5) from the point cloud, but it excludes the 'low noise' class. The DEM covers a rectangular area of seafloor approximately 800x160 meters (0.12 square kilometers) in size and was saved as a tiled GeoTIFF raster at 1-cm resolution.

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.

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Dates

Metadata Created Date	June 1, 2023
Metadata Updated Date	October 29, 2023

Metadata Source

Data.json Data.json Metadata
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Additional Metadata

Resource Type	Dataset
Metadata Created Date	June 1, 2023
Metadata Updated Date	October 29, 2023
Publisher	U.S. Geological Survey
Maintainer	PCMSC Science Data Coordinator
@Id	http://datainventory.doi.gov/id/dataset/33abbb28a63bb5b6d49bdd3ac9dcbe98
Identifier	USGS:91a971cc-f433-4d2e-a647-aa7fe3bba14d
Data Last Modified	20220611
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	6c8c1088-5cf8-4e4e-a265-7b7f3c5f0bb2
Harvest Source Id	52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title	DOI EDI
Metadata Type	geospatial
Old Spatial	-81.84593563,24.45766816,-81.83777265,24.4636915
Publisher Hierarchy	White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier	True
Source Hash	ea6fee57b03912653a660a1584d5ca95261fefbab2ef1870b13456e1e3f00547
Source Schema Version	1.1
Spatial	{"type": "Polygon", "coordinates": -81.84593563, 24.45766816, -81.84593563, 24.4636915, -81.83777265, 24.4636915, -81.83777265, 24.45766816, -81.84593563, 24.45766816}

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