Digital video collected during Alvin submersible dive 2207 by Bureau of Ocean Energy Management (BOEM) in the Gulf of Mexico on 1990-04-09 (NCEI Accession 0167526)
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title: Digital video collected during Alvin submersible dive 2207 by Bureau of Ocean Energy Management (BOEM) in the Gulf of Mexico on 1990-04-09 (NCEI Accession 0167526)
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Anchor: https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4348 Jonathan Blythe
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abstract: 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 1990-04-09 from the manned submersible Alvin during dive number 2207. 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.
purpose: To contribute to the valuable foundation of observational data for cold seep communities on the northern Gulf of Mexico continental slope.
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otherConstraints: Cite as: Blythe, Jonathan; Bureau of Ocean Energy Management (2017). Digital video collected during Alvin submersible dive 2207 by Bureau of Ocean Energy Management (BOEM) in the Gulf of Mexico on 1990-04-09 (NCEI Accession 0167526). https://www.ncei.noaa.gov/archive/accession/0167526. In Blythe, Jonathan; Bureau of Ocean Energy Management. 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].
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supplementalInformation: 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. In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
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dateType: (CI_DateTypeCode) publication
citedResponsibleParty: (CI_ResponsibleParty)
individualName: (inapplicable)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/0167526/1.1
protocol: HTTPS
name: NCEI Accession 0167526 v1.1
description: published 2017-10-25T11:46:09Z
function: (CI_OnLineFunctionCode) download
role: (inapplicable)
processStep: (LE_ProcessStep)
description: NCEI Accession 0167526 was revised and v2.2 was published.
rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
dateTime:
DateTime: 2017-10-25T17:40:57Z
output: (LE_Source)
sourceCitation: (CI_Citation)
title: NCEI Accession 0167526 v2.2
date: (CI_Date)
date: (inapplicable)
dateType: (CI_DateTypeCode) publication
citedResponsibleParty: (CI_ResponsibleParty)
individualName: (inapplicable)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/0167526/2.2
protocol: HTTPS
name: NCEI Accession 0167526 v2.2
description: published 2017-10-25T17:40:57Z
function: (CI_OnLineFunctionCode) download
role: (inapplicable)
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metadataMaintenance: (MD_MaintenanceInformation)
maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) asNeeded
maintenanceNote: Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
maintenanceNote: NCEI Accession 0167526 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.
contact: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
role: (CI_RoleCode) custodian
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acquisitionInformation: (MI_AcquisitionInformation)
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: video camera
type: video camera
description: a camera which makes moving or still images used as the basis for making parameter determinations
platform: (MI_Platform)
identifier: (MD_Identifier)
code: DSV Alvin
description: Submersible.
instrument: (missing)
