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EK60 Water Column Sonar Data Collected During OD0704

Metadata Updated: June 9, 2023

AFSC Inter-Vessel Comparison of NOAA Ships Oscar Dyson and Miller Freeman in the Shelikof Strait Area (OD0704, EK60). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted an inter-vessel acoustic-trawl (AT) comparison of NOAA Ships Oscar Dyson and Miller Freeman in the Shelikof Strait area of the Gulf of Alaska 11-25 March 2007. The inter-vessel comparison 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 equipped with five frequencies (18, 38, 70, 120, and 200 kHz). The vessel departed Dutch Harbor, Alaska on 11 March and arrived in Kodiak, Alaska 25 March. The EK60 echosounder system was calibrated at the end of the previous cruise in Portage Bay (Makushin Bay), Unalaska Island, Alaska on 10 March and a final system calibration was conducted in Uyak Bay, Kodiak Island, Alaska on 23 March.

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 10, 2022
Metadata Updated Date June 9, 2023
Reference Date(s) March 11, 2007 (creation), June 3, 2019 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NGDC MGG Sonar Water Column

Additional Metadata

Resource Type Series
Metadata Date September 14, 2021
Metadata Created Date November 10, 2022
Metadata Updated Date June 9, 2023
Reference Date(s) March 11, 2007 (creation), June 3, 2019 (publication)
Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
Contact Email
Guid gov.noaa.ncei.wcd:OD0704_EK60
Access Constraints Cite as: NOAA Alaska Fisheries Science Center. 2007. 'EK60 Water Column Sonar Data Collected During OD0704'. NOAA National Centers for Environmental Information. https://doi.org/10.25921/9dhe-6k69 [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 -152.00273
Bbox North Lat 58.50805
Bbox South Lat 53.85251
Bbox West Long -166.59711
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id 706228a2-ea65-4b23-8dba-5c1929312a21
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 Calibrated w/ calibration data
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-166.59711, 53.85251], [-152.00273, 53.85251], [-152.00273, 58.50805], [-166.59711, 58.50805], [-166.59711, 53.85251]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 2007-03-11T23:26:38
Temporal Extent End 2007-03-25T16:52:07

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