EK60 Water Column Sonar Data Collected During OD0501

Metadata Updated: November 12, 2020

Acoustic-Trawl Survey of Walleye Pollock in the Gulf of Alaska (OD0501, EK60). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment survey of walleye pollock (Theraga Chalcogramma) along sections of the Gulf of Alaska shelf and shelfbreak from the Islands of Four Mountains to south of Prince William Sound, 30 June to 30 July 2005. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation, utilizing a Simrad EK60 split-beam echosounder system. The vessel departed Kodiak, Alaska on 2 July and arrived in Kodiak on 29 July. The cruise was completed in two legs with a port call in Dutch Harbor, Alaska 12-13 July. The EK60 echosounder system was calibrated at the start of the cruise in Three Saints Bay, Kodiak Island, Alaska on 2 June, and at the end of the cruise in Three Saints Bay on 28 July 2005.

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.

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Dates

Metadata Date June 3, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) June 1, 2005 (creation), January 3, 2017 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NGDC MGG Sonar Water Column

Additional Metadata

Resource Type Series
Metadata Date June 3, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) June 1, 2005 (creation), January 3, 2017 (publication)
Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
Contact Email
Guid gov.noaa.ngdc.mgg.wcd:OD0501_EK60
Access Constraints Cite as: Alaska Fisheries Science Center. 2005. 'EK60 Water Column Sonar Data Collected During OD0501'. NOAA National Centers for Environmental Information. doi:10.7289/V52805QZ [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 0.0
Bbox North Lat 59.15755
Bbox South Lat 0.0
Bbox West Long -170.04038
Coupled Resource
Frequency Of Update notPlanned
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
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 2005-06-01T16:08:17
Temporal Extent End 2005-07-28T21:21:34

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