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    • EX2101: 2021 EM 304 Sea Acceptance Testing and Mapping Shakedown (Mapping)

    Metadata Updated: November 3, 2023

    Between April 14 and May 10, 2021 EX-21-01 performed the sea acceptance testing of the newly installed Kongsberg EM 304 MKII transmit array, conducted mission readiness of the mapping systems through annual testing and calibration, and mapped unexplored areas of the Blake Plateau. In addition to the EM 304 multibeam sonar objectives, EK60/80 split-beam echosounder objectives included acceptance of the newly installed EK80 38 kHz transducer and calibration of each frequency (18, 38, 70, 120, 200 kHz). Other mission readiness objectives included ensuring functionality of all ancillary equipment, including sound speed profiling equipment, updating and refining procedural documents, and defining new procedures for supporting shore-based processing using the Cloud. EX-21-01 collected 22,187 square kilometers of bathymetry and associated water column data, with 18,773 square kilometers being within the U.S. Exclusive Economic Zone and Territorial Sea deeper than 200 m.

    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 June 2, 2021
    Metadata Created Date November 3, 2023
    Metadata Updated Date November 3, 2023
    Reference Date(s) April 16, 2021 (publication)
    Frequency Of Update

    Metadata Source

    Harvested from NCDDC OER

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date June 2, 2021
    Metadata Created Date November 3, 2023
    Metadata Updated Date November 3, 2023
    Reference Date(s) April 16, 2021 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:EX2101
    Access Constraints
    Bbox East Long -72.436
    Bbox North Lat 33.553
    Bbox South Lat 23.220
    Bbox West Long -87.423
    Coupled Resource
    Frequency Of Update
    Harvest Object Id eeb8c1be-8809-41b9-87af-849f6e91f657
    Harvest Source Id 0eb61eac-016f-4f95-a6c3-2974339749bb
    Harvest Source Title NCDDC OER
    Licence Access Constraints: No access constraints Use Constraints: No use constraints.
    Lineage Processing Steps
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-87.423, 23.22], [-72.436, 23.22], [-72.436, 33.553], [-87.423, 33.553], [-87.423, 23.22]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2021-04-16
    Temporal Extent End 2021-05-10

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