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    • ME70 Water Column Sonar Data Collected During RL1606

    Metadata Updated: September 17, 2021

    2016 Summer California Current Ecosystem CPS Survey (RL1606, ME70). The cruise sampled the California Current Ecosystem from San Diego, CA to Vancouver Island, BC, CA. Multi-frequency (18-, 38-, 70-, 120-, 200-, and 333-) General Purpose Transceivers and Wide Band Transceivers (Simrad EK60 GPTs and EK80 WBTs), were configured with split-beam transducers (ES18-11, ES38B, ES70-7C, ES120-7C, ES200-7C, ES333-7c, respectively). The transducers were mounted on the bottom of a retractable keel called a "centerboard". The keel was retracted (~ 5-m depth) during calibration, and in the intermediate position (~7-m depth) throughout the survey. Exceptions were made during shallow water operations, when the keel was retracted; or during times of heavy weather, when the keel was extended (~9-m depth) to provide extra stability. In addition, the Simrad ME70, MS70, and SX90 were used to sample the water column simultaneously using K-sync to sequence pinging between sounders and sonars. The EK80s were removed from the ship halfway through the survey on August 19 and resinstalled on September 19. EK80 data was collected in CW mode.

    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 September 14, 2021
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 17, 2021
    Reference Date(s) June 28, 2016 (creation), September 24, 2017 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NGDC MGG Sonar Water Column

    Other Data Resources

    Additional Metadata

    Resource Type Series
    Metadata Date September 14, 2021
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 17, 2021
    Reference Date(s) June 28, 2016 (creation), September 24, 2017 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ngdc.mgg.wcd:RL1606_ME70
    Access Constraints Cite as: Southwest Fisheries Science Center. 2016. 'ME70 Water Column Sonar Data Collected During RL1606'. NOAA National Centers for Environmental Information. doi:10.7289/V5XP7342 [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 -117.15315
    Bbox North Lat 50.76075
    Bbox South Lat 32.59865
    Bbox West Long -129.46203
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 11fc7440-0fd4-4b98-a624-c5f7858159fa
    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.
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-129.46203, 32.59865], [-117.15315, 32.59865], [-117.15315, 50.76075], [-129.46203, 50.76075], [-129.46203, 32.59865]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2016-06-28T19:38:30
    Temporal Extent End 2016-09-17T08:09:17

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