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    • EK60 Water Column Sonar Data Collected During RL1810

    Metadata Updated: November 10, 2022

    Since 1991, the Marine Mammal and Turtle Division (MMTD), previously the Protected Resources Division (PRD), has conducted large-vessel cetacean and ecosystem assessment surveys in waters off the U.S. West Coast. These line-transect surveys, conducted aboard NOAA research vessels (David Starr Jordan, McArthur, McArthur II, Reuben Lasker, Bell M. Shimada), typically occur in summer and fall and span waters out 300 nautical miles offshore, from the US-Canada to US-Mexico border, but sometimes include waters in Canada or Mexico as well. Data types collected principally include visual sightings data for cetaceans and seabirds, passive acoustic (e.g., towed or drifting array) data for cetaceans, tissue biopsy sampling used for genetics analysis, and oceanographic sampling. Survey data have been used to estimate cetacean population size and trends, delineate cetacean population stock structure, describe cetacean and seabird distributions and hotspots, develop species distribution models, and inform marine mammal stock assessment reports pursuant to statutory requirements under the MMPA.

    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 22, 2022
    Metadata Created Date November 10, 2022
    Metadata Updated Date November 10, 2022
    Reference Date(s) October 4, 2018 (creation), September 22, 2022 (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 22, 2022
    Metadata Created Date November 10, 2022
    Metadata Updated Date November 10, 2022
    Reference Date(s) October 4, 2018 (creation), September 22, 2022 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:RL1810_EK60
    Access Constraints Cite as: NOAA Southwest Fisheries Science Center. 2022. EK60 Water Column Sonar Data Collected During RL1810. NOAA National Centers for Environmental Information. https://doi.org/https://doi.org/10.25921/bzvg-wt71 [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 -114.50641
    Bbox North Lat 46.11182
    Bbox South Lat 27.35961
    Bbox West Long -128.82159
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id b673ae9f-4dd0-43e5-8d1a-9e9cb299564f
    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 Unknown
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-128.82159, 27.35961], [-114.50641, 27.35961], [-114.50641, 46.11182], [-128.82159, 46.11182], [-128.82159, 27.35961]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2018-10-04T00:00:00
    Temporal Extent End 2018-12-03T11:59:59

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