EK60 Water Column Sonar Data Collected During OD0707

AFSC Echo Integration-Trawl of Walleye Pollock (Theraga chalcogramma) on the U.S. and Russian Bering Sea Shelf in June and July 2007 (OD0707, 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 survey of abundance and distribution of walleye pollock (Theragra chalcogramma; Gadus chalcogramma) on the U.S eastern Bering Sea shelf and Russian Cape Navarin areas 2 June to 30 July 2007. 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 equipped with five frequencies (18, 38, 70, 120, and 200 kHz). The survey was conducted in three legs starting and ending in Dutch Harbor, Alaska with all port calls in Dutch Harbor. Leg 1 was conducted 2-20 June, leg 2 was conducted 21 June to 9 July, and leg 3 was conducted 11-30 July. Standard acoustic system sphere calibrations were conducted at the start of the cruise (2 June), at the start of leg 2 (21 June), at the end of leg 2 (8 July), and at the end of the cruise (29 July); all calibrations were accomplished in Captains Bay, Dutch Harbor.

Dataset Citation

Cite as: NOAA Alaska Fisheries Science Center. 2007. 'EK60 Water Column Sonar Data Collected During OD0707'. NOAA National Centers for Environmental Information. https://doi.org/10.25921/kave-ap39 [access date]

Dataset Identifiers

OD0707_EK60
doi:10.25921/kave-ap39
NCEI Metadata ID:gov.noaa.ncei.wcd:OD0707_EK60

ISO 19115-2 Metadata

gov.noaa.ncei.wcd:OD0707_EK60

XML


Search Data	Water Column Sonar Data Map Viewer (search) Interactive map viewer to allow discovery and access to water column sonar data
Download Data	AWS Cloud Storage Bucket (download) AWS Cloud Storage provides additional public access to water column sonar data through the NOAA Big Data Project
Distribution Formats	Simrad EK60 raw (.raw) format (Version:1) File Specification: Kongsberg/Simrad .raw files are generated by ME70, EK60 or ES60 instruments. They contain power and optionally angular position data with each beam/frequency identified by an independent channel. See the Simrad interface specification manual for further information. The .wcd files are generated by Kongsberg EM302 or EM122 instruments. See Kongsberg documentation for more information.
Ordering Instructions	Contact the NCEI Water Column Sonar Data Manager to order data.
Distributor	NOAA National Centers for Environmental Information ncei.info@noaa.gov
Dataset Point of Contact	NOAA National Centers for Environmental Information ncei.info@noaa.gov
Dataset Point of Contact	Water Column Sonar Data Manager NOAA National Centers for Environmental Information (303) 497-4742 wcd.info@noaa.gov


Time Period	2007-06-01T03:26:20 to 2007-07-30T06:31:28
Spatial Reference System	urn:ogc:def:crs:EPSG::4326Vertical Datum: Unknown
Spatial Bounding Box Coordinates	West:-179.99999 East:179.99999 South:53.84933 North:62.35788
Spatial Coverage Map


General Documentation	Water Column Sonar Data Archive Homepage Web page containing information on the water column sonar data archive.
Associated Resources


Publication Dates	creation: 2007-06-01 publication: 2019-06-03
Dataset Progress Status	Complete - production of the data has been completed
Data Update Frequency	Not planned
Purpose	AFSC acoustic-trawl (A-T) survey of walleye pollock on the U.S. eastern Bering Sea shelf and Russian Cape Navarin area aboard NOAA Ship Oscar Dyson 2 June to 30 July 2007 (OD2007-07)
Use Limitations	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.


Dataset Citation	Cite as: NOAA Alaska Fisheries Science Center. 2007. 'EK60 Water Column Sonar Data Collected During OD0707'. NOAA National Centers for Environmental Information. https://doi.org/10.25921/kave-ap39 [access date]
Cited Authors	DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center
Principal Investigators	Chris Wilson DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center
Custodians	NOAA National Centers for Environmental Information
Publishers	NOAA National Centers for Environmental Information


Theme keywords	Global Change Master Directory (GCMD) Science Keywords Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering Earth Science > Oceans > Aquatic Sciences > Fisheries Earth Science > Oceans > Ocean Acoustics Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic Earth Science > Biosphere > Ecosystems > Marine Ecosystems Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
Data Center keywords	Global Change Master Directory (GCMD) Data Center Keywords DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce
Instrument keywords	Global Change Master Directory (GCMD) Instrument Keywords In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
Place keywords	International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) Bering Sea Global Change Master Directory (GCMD) Location Keywords Vertical Location > Water Column


Use Constraints	Cite as: NOAA Alaska Fisheries Science Center. 2007. 'EK60 Water Column Sonar Data Collected During OD0707'. NOAA National Centers for Environmental Information. https://doi.org/10.25921/kave-ap39 [access date] 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.
Access Constraints	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. Resource may not be available for up to one year after initial collection.
Fees	Free

Use Constraints

Cite as: NOAA Alaska Fisheries Science Center. 2007. 'EK60 Water Column Sonar Data Collected During OD0707'. NOAA National Centers for Environmental Information. https://doi.org/10.25921/kave-ap39 [access date]

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.

Access Constraints

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.

Resource may not be available for up to one year after initial collection.

Fees

Free

Lineage information for:series
Processor	DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center

Lineage information for:series
Lineage Statement	The primary instrument for acoustic surveys installed on the Oscar Dyson is a Simrad EK60 split-beam echosounder system utilizing five frequencies (18, 38, 70, 120, and 200 kHz). The EK60 transducers installed on the Oscar Dyson are mounted on a deployable centerboard. The transducer draft settings in the EK60 software are nominally correct when the centerboard is fully extended (draft correction setting is 9.15 meters below the surface). When the centerboard is in the retracted position (transducers approximately even with the vessel's keel), the transducers are nominally 6.1 meters below the surface. The EK60 echosounder system was calibrated four times during this cruise (2 June, 21 June, 8 July, and 29 July) in Captains Bay, Dutch Harbor, Alaska.

Acquisition Information (collection)
Instrument	Simrad EK60 Simrad ME70 Simrad EK60 Simrad ES60 Knudsen CHIRP 3260 Sippican XBT/XSV SBE 49 FastCAT SBE 911plus CTD SBE 32 POS/MV 320
Platform	Oscar Dyson (DY)
Operation	OD0707_EK60

Last Modified: 2021-09-14

For questions about the information on this page, please email:ncei.info@noaa.gov