EK60 Water Column Sonar Data Collected During DY0604

Metadata Updated: November 12, 2020

California Current Ecosystem Survey 2006. The 2006 California Current Ecosystem Survey used two vessels: the NOAA FSV Oscar Dyson and the NOAA FRV David Starr Jordan. The plan was for the FSV Oscar Dyson was to survey the northern part and the FRV David Starr Jordan to survey the southern part using identical methods. However, equipment failures prevented trawling operations on the FRV David Starr Jordan, and trawling was only conducted from the FSV Oscar Dyson and the survey plan of the FSV Oscar Dyson was extended to cover the entire West Coast down to San Diego, California. Both vessels collected water samples from a CTD-rosette, ichthyoplankton samples from plankton nets and meteorological data from weather station sensors at prescribed and adhoc stations. At some of these and other locations, surface trawls were collected during night from the FSV Oscar Dyson. Underway operations on each ship included operating a continuous underway fish egg sampler (CUFES), an acoustic Doppler current profiler (ADCP), multiple-frequency split-beam echosounders and a multi-beam echosounder. Daytime underway operations included bird and mammal observations. The acoustic surveys were accomplished using Simrad EK60 split-beam echosounders. Four echosounders were operated on the David Starr Jordan at 38, 70, 120 and 200 kHz, and five were operated on the Oscar Dyson at 18, 38, 70, 120 and 200 kHz. Each 5 echosounder was calibrated prior to the survey using the standard sphere method.

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 August 14, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) April 6, 2006 (creation), March 5, 2018 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NGDC MGG Sonar Water Column

Additional Metadata

Resource Type Series
Metadata Date August 14, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) April 6, 2006 (creation), March 5, 2018 (publication)
Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
Contact Email
Guid gov.noaa.ngdc.mgg.wcd:DY0604_EK60
Access Constraints Cite as: Southwest Fisheries Science Center. 2006. 'EK60 Water Column Sonar Data Collected During DY0604'. NOAA National Centers for Environmental Information. https://doi.org/10.25921/y2rj-0g29 [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 -117.19867
Bbox North Lat 54.00565
Bbox South Lat 30.55174
Bbox West Long -132.29757
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 2006-04-06T00:00:00
Temporal Extent End 2006-05-06T23:59:59

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