Dataset description: Orthoimagery of Eastern Dry Rocks coral reef, Florida, 2021

A seabed orthoimage was developed 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. The orthoimage covers a rectangular area of seafloor approximately 800x160 meters (0.12 square kilometers) in size, and it was created using image-mosaicking methods and saved as a tiled, 5-mm resolution raster.

Version	1
Keywords	visible light imaging, structure from motion, geospatial datasets, reef ecosystems, remote sensing
Data types	Photo
Format	TIFF;
Amount	25700 MB

Contacts

Contact	Gerald Hatcher SPCMSC_data_contact@usgs.gov

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Location of materials and files

Public files	https://doi.org/10.5066/P93RIIG9
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/CMGDS_DR_tool/DR_P93RIIG9/SQUID5_EDR_2021_Ortho_5mm_metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
2021-313-FA	SQUID-5 Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with 5 cameras designed by Gerry Hatcher for SfM data collection.