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Underwater video observations offshore of Tacoma, Washington

Metadata Updated: July 6, 2024

This part of USGS Data Series 935 (Cochrane, 2014) presents observations from underwater video collected in the Offshore of Tacoma, Washington, map area, a part of the Southern Salish Sea Map Series. To validate the interpretations of sonar data in order to turn it into geologically and biologically useful information, the U.S. Geological Survey (USGS) towed a camera sled over specific locations throughout the Tacoma map area to collect video and photographic data that would “ground truth” the seafloor. The ground-truth survey conducted in the Tacoma map area occurred in 2009 and 2011 on the R/V Karluk (USGS field activity K109PS, and K0111PS) and on the Washington State Department of Fish and Game R/V Molluscan in 2011 and 2012 (USGS field activity M0111PS, M0112PS, and M0212PS). The camera sled was towed 1 to 2 m above the seafloor at speeds of between 1 and 2 nautical miles/hour. The surveys for this map area includes approximately 30 hours (47 trackline km) of video.

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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Metadata Created Date May 31, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date May 31, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Identifier USGS:f55b843d-86a2-4101-96e2-f96144a0cce9
Data Last Modified 20230516
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 79f87eee-619e-4c89-bc95-c7a9eb282931
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -122.77379,47.110177,-122.395955,47.34923
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash f87ab14981e5ae00bc58af77d467d97ef7454ad7e2e74ea69e8cb37203c9125e
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -122.77379, 47.110177, -122.77379, 47.34923, -122.395955, 47.34923, -122.395955, 47.110177, -122.77379, 47.110177}

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