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    • Marine mammal observations conducted during US National Science Foundation geophysical research cruises in the global oceans from the platforms Maurice Ewing, Marcus G. Langseth, Thomas G. Thompson, and R/V Knorr from 2003-05-28 to 2009-08-25 (NCEI Accession 0083783)

    Metadata Updated: January 1, 2026

    All marine mammals and sea turtles that were visually observed during a marine geophysical survey were recorded to: 1) determine whether a mitigation measure needed to be implemented during the survey; 2) determine the potential number of animals exposed to seismic sounds. During periods when no marine mammals were observed, the vessel location and the environmental conditions were also recorded approximately every 30 minutes whenever a Protected Species Observer was on watch (during daylight hours).

    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 2025-09-30T19:42:24Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date January 1, 2026
    Reference Date(s) January 13, 2012 (publication), January 13, 2012 (creation)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2025-09-30T19:42:24Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date January 1, 2026
    Reference Date(s) January 13, 2012 (publication), January 13, 2012 (creation)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0083783
    Access Constraints Cite as: Smith, Holly; U.S. National Science Foundation (2012). Marine mammal observations conducted during US National Science Foundation geophysical research cruises in the global oceans from the platforms Maurice Ewing, Marcus G. Langseth, Thomas G. Thompson, and R/V Knorr from 2003-05-28 to 2009-08-25 (NCEI Accession 0083783). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0083783. 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 92.22
    Bbox North Lat 89.99
    Bbox South Lat -21.81
    Bbox West Long 119.93
    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:0083783
    Graphic Preview Type PNG
    Harvest Object Id aa1c9ba2-d1a2-4e50-9fd2-60155fe142b6
    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": [[[119.93, -21.81], [92.22, -21.81], [92.22, 89.99], [119.93, 89.99], [119.93, -21.81]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2003-05-28
    Temporal Extent End 2009-08-25

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