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    • Digital video collected during 149 submersible dives by Bureau of Ocean Energy Management (BOEM) at suspected hydrocarbon seep sites in the Gulf of Mexico from 1988-07-28 to 2002-06-04.

    Metadata Updated: May 19, 2023

    This dataset contains videographic data of ocean floor biology and geology at a suspected hydrocarbon seep sites in the Gulf of Mexico, captured during 149 submersible dives at 48 different lease block areas over the course of 15 dive seasons from 1988 to 2002, collected for studies funded by the Minerals Management Service, now Bureau of Ocean Energy Management (BOEM). Seep communities were found in all but four dives, although sparse community development was common. Because BOEM is tasked with protecting sensitive benthic communities from impacts of operational activities on the outer continental shelf and continental slope, locating these communities is an important task. Although use of surface attributes, particularly strength of seabed reflectivity (from 3-D seismic data) has been very successful in identifying areas of hard bottom (seep-related carbonate) and gas-filled sediment, visual evidence is still considered the best and most irrefutable data. The submersible video database will provide a valuable foundation of observational data for cold seep communities on the northern Gulf of Mexico continental slope.

    The video in this dataset was originally captured on several different analog video formats. To create the digital video files, the analog video was transferred to DVD, extracted as .avi files, and transcoded at a final stage to MPEG-2 files identified with the extension .mpg. The entire dataset comprises 3,533 .mpg clips of duration 5 minutes or less, representing a total of 280 hours of bottom time. In a few cases, the intermediate .avi files have been archived as well. In one dive (JSL_2634), video has been archived in .VOB and .mp4 format.

    Access & Use Information

    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 Date 2023-01-06T17:45:35Z
    Metadata Created Date June 25, 2021
    Metadata Updated Date May 19, 2023
    Reference Date(s) October 18, 2017 (publication), November 30, 2017 (revision)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Series
    Metadata Date 2023-01-06T17:45:35Z
    Metadata Created Date June 25, 2021
    Metadata Updated Date May 19, 2023
    Reference Date(s) October 18, 2017 (publication), November 30, 2017 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:BOEM-Seeps-Video
    Access Constraints Cite as: Blythe, Jonathan; Bureau of Ocean Energy Management (2017). Digital video collected during 149 submersible dives by Bureau of Ocean Energy Management (BOEM) at suspected hydrocarbon seep sites in the Gulf of Mexico from 1988-07-28 to 2002-06-04.. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/BOEM-Seeps-Video. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -88.017
    Bbox North Lat 29.11
    Bbox South Lat 26.353
    Bbox West Long -94.505
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:BOEM-Seeps-Video
    Graphic Preview Type PNG
    Harvest Object Id 53c307b4-890c-40c6-ae8a-7a98439d5ceb
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-94.505, 26.353], [-88.017, 26.353], [-88.017, 29.11], [-94.505, 29.11], [-94.505, 26.353]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1988-07-28
    Temporal Extent End 2002-06-04

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