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Dataset Overview | National Centers for Environmental Information (NCEI)

Digital video collected during Johnson-Sea-Link I submersible dive 3785 by Bureau of Ocean Energy Management (BOEM) in the Gulf of Mexico on 1994-10-14 (NCEI Accession 0168793)

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This Archival Information Package (AIP) contains videographic data of ocean floor biology and geology at a suspected hydrocarbon seep site in the Gulf of Mexico, captured on 1994-10-14 from the manned submersible Johnson-Sea-Link I during dive number 3785. The timespan of this AIP is a single day and constitutes video from a single dive.

This AIP is part of a dataset of 149 submersible dives from 48 different lease block areas over the course of 15 dive seasons ranging 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 the dataset of which this AIP is a part was originally captured on several different analog video formats. To create the digital video files which comprise the entire collection, 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 In a few cases, the intermediate .avi files have been archived as well. In one dive (JSL_2634), video has been archived in .VOB and .mp4 format.
  • Cite as: Blythe, Jonathan; Bureau of Ocean Energy Management (2017). Digital video collected during Johnson-Sea-Link I submersible dive 3785 by Bureau of Ocean Energy Management (BOEM) in the Gulf of Mexico on 1994-10-14 (NCEI Accession 0168793). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0168793. Accessed [date].
gov.noaa.nodc:0168793
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Distribution Formats
  • MPEG-2
    • File Specification: Video codec: MPEG-2 (H.262), 8 Mbps; Audio codec: AC3, 448 Kbps
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 1994-10-14 to 1994-10-14
Spatial Bounding Box Coordinates
West: -93.323333
East: -93.323333
South: 27.176667
North: 27.176667
Spatial Coverage Map
General Documentation
Associated Resources
  • 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.
    • NCEI Collection
      Navigate directly to the URL for data access and direct download.
  • Parent ID (indicates this dataset is related to other data):
    • gov.noaa.nodc:BOEM-Seeps-Video
Publication Dates
  • publication: 2017-11-29
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Since the mid-1980s, the Minerals Management Service, now Bureau of Ocean Energy Management, and other national funding agencies have supported studies of natural hydrocarbon seeps on the continental slope of the northern Gulf of Mexico. A key part of the database generated from these studies is video of the seafloor associated with each site visited, which were taken using research submersibles to observe and sample the sensitive benthic biology and geology of seep sites. These seep communities, found in all but four dives, are at risk from the impacts of operational activities on the outer continental shelf and continental slope. Locating these communities is an important task, and visual evidence is still considered the best and most irrefutable data. These submersible video data contribute to the valuable foundation of observational data for cold seep communities on the northern Gulf of Mexico continental slope.
Purpose To contribute to the valuable foundation of observational data for cold seep communities on the northern Gulf of Mexico continental slope.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Blythe, Jonathan; Bureau of Ocean Energy Management (2017). Digital video collected during Johnson-Sea-Link I submersible dive 3785 by Bureau of Ocean Energy Management (BOEM) in the Gulf of Mexico on 1994-10-14 (NCEI Accession 0168793). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0168793. Accessed [date].
Cited Authors
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords Originator Keywords
  • Crustacea
  • Echinodermata
  • crab
  • fish
  • instrument
  • sample
  • sea star
  • terrain
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Dive Site Name
  • Garden Banks
Global Change Master Directory (GCMD) Location Keywords Lease Block
  • GB 804
  • Garden Banks
Project keywords Dive Number
  • JSL-1_3785
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Blythe, Jonathan; Bureau of Ocean Energy Management (2017). Digital video collected during Johnson-Sea-Link I submersible dive 3785 by Bureau of Ocean Energy Management (BOEM) in the Gulf of Mexico on 1994-10-14 (NCEI Accession 0168793). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0168793. Accessed [date].
Access Constraints
  • 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.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2017-11-29T22:26:44Z - NCEI Accession 0168793 v1.1 was published.
Output Datasets
Acquisition Information (collection)
Instrument
  • video camera
Platform
  • Johnson-Sea-Link I
Last Modified: 2021-10-16T23:39:39Z
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