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    • EM304 Water Column Sonar Data Collected During EX2402

    Metadata Updated: September 1, 2025

    During EX2402, acoustic data were collected with the ship's EM 304 multibeam data (26 kHz), Knudsen 3260 sub-bottom profiler (3.5 kHz), the suite of five EK60/80 split-beam sonars (18, 38, 70, 120, and 200 kHz), and two ADCPs (38 and 300 kHz). More information about equipment used and methods employed can be found in the annual readiness report.

    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 August 20, 2025
    Metadata Created Date September 1, 2025
    Metadata Updated Date September 1, 2025
    Reference Date(s) May 14, 2024 (creation), August 20, 2025 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NGDC MGG Sonar Water Column

    Other Data Resources

    Additional Metadata

    Resource Type Series
    Metadata Date August 20, 2025
    Metadata Created Date September 1, 2025
    Metadata Updated Date September 1, 2025
    Reference Date(s) May 14, 2024 (creation), August 20, 2025 (publication)
    Responsible Party (Point of Contact); NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:EX2402_EM304
    Access Constraints Cite as: NOAA Ocean Exploration. 2025. EM304 Water Column Sonar Data Collected During EX2402. NOAA National Centers for Environmental Information. https://doi.org/10.25921/r145-a513 [access date], 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., 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., Resource may not be available for up to one year after initial collection.
    Bbox East Long -154.07868
    Bbox North Lat 20.53306
    Bbox South Lat 15.09534
    Bbox West Long -158.08088
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 20a1deac-c3da-485f-90f7-5fb5233fb32f
    Harvest Source Id ab8b0290-e4db-4a00-89f2-4e427c2054b2
    Harvest Source Title NGDC MGG Sonar Water Column
    Licence These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty., Not subject to copyright protection within the United States.
    Lineage Uncalibrated
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-158.08088, 15.09534], [-154.07868, 15.09534], [-154.07868, 20.53306], [-158.08088, 20.53306], [-158.08088, 15.09534]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2024-05-14T00:00:00
    Temporal Extent End 2024-06-09T11:59:59

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