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Alaska Fisheries Science Center Metadata Librar... > Resource Assessment and Conservation Engineerin... > Midwater Assessment and Conservation Engineerin... > AFSC/RACE/MACE: Pollock Acoustic-Trawl Survey B... >

Results of 2022 Bering Sea Acoustic Survey - DY2207

Data Set (DS)  |  Alaska Fisheries Science Center (AFSC)
GUID: gov.noaa.nmfs.inport:76708  |  Updated: March 4, 2026  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Tech Environment
Data Quality
Lineage
Acquisition Info
Catalog Details

Summary

Enter the name of the URL. Required for Browse Graphic URLs.

Short Citation
Alaska Fisheries Science Center, 2026: Results of 2022 Bering Sea Acoustic Survey - DY2207, https://www.fisheries.noaa.gov/inport/item/76708.
Full Citation Examples

DOI: (Extra Credit) Enter the DOI of the Catalog Item.

Abstract

Eastern Bering Sea shelf walleye pollock (Gadus chalcogrammus) midwater abundance and distribution were assessed from Bristol Bay to the U.S.-Russia Convention Line between 27 May and 7 August 2022 using acoustic-trawl survey methods aboard the NOAA ship Oscar Dyson.

Purpose

Acoustic trawl survey of the Bering Sea for pollock stock assessment.

Data Access & Downloads

  • Enter the file name.
    Enter the file size of the dow

    Each file is a binary formatted instrument file. Kongsberg/Simrad .raw files are generated by ME70, EK60, EK80 or ES60 instruments. They contain power and optionally angular position data with each beam/frequency identified by an independent channel.The .wcd files are generated by Kongsberg EM302, EM122 or EM710 instruments. Additional file types from other instruments exist in this bucket. See instrument specific documentation for more information.

Access Constraints:

None

Controlled Theme Keywords

ACOUSTIC SCATTERING

Child Items

No Child Items for this record.

Contact Information

Data Steward
Rick Towler
rick.towler@noaa.gov

Distributor
NOAA National Centers for Environmental Information (NCEI)
ROR: 04r0wrp59
ncei.info@noaa.gov
NCEI Contact Information

Extents

Geographic Area 1

-178.8760645° W, -161.3697768° E, 63.1401227° N, 54.096185° S

Enter a description for the geographic extent.

Time Frame 1
2022-05-31 - 2022-08-06

Item Identification

Title: Results of 2022 Bering Sea Acoustic Survey - DY2207
Status: Completed
Creation Date: 2025-07-18
Abstract:

Eastern Bering Sea shelf walleye pollock (Gadus chalcogrammus) midwater abundance and distribution were assessed from Bristol Bay to the U.S.-Russia Convention Line between 27 May and 7 August 2022 using acoustic-trawl survey methods aboard the NOAA ship Oscar Dyson.
Purpose:

Acoustic trawl survey of the Bering Sea for pollock stock assessment.
DOI (Digital Object Identifier): (Extra Credit) Enter the DOI of the Catalog Item.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC SCATTERING

Instrument Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Instrument Keywords
ACOUSTIC SOUNDERS

Physical Location

Organization: Alaska Fisheries Science Center
City: Seattle
State/Province: WA
Country: United States
Location Description:

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Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Binary
Maintenance Frequency: As Needed
Maintenance Note:

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Data Presentation Form: Simrad RAW file format
Entity Attribute Overview:

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Entity Attribute Detail Citation:

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Distribution Liability:

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Data Set Credit: Enter credits to external persons or organizations contributing to the data set.

Support Roles

Data Steward

CC ID: 1403619
Date Effective From: 2022-08-06
Date Effective To:
Contact (Person): Towler, Rick
Email Address: rick.towler@noaa.gov

Distributor

CC ID: 1403620
Date Effective From: 2022-11-04
Date Effective To:
Contact (Organization): NOAA National Centers for Environmental Information (NCEI)
ROR: https://ror.org/04r0wrp59
Email Address: ncei.info@noaa.gov
URL: NCEI Contact Information

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1403623
W° Bound: -178.8760645
E° Bound: -161.3697768
N° Bound: 63.1401227
S° Bound: 54.096185
Description

Enter a description for the geographic extent.

Extent Group 1 / Vertical Extent 1

CC ID: 1403624
Vertical Minimum: -1009.35
Vertical Maximum: 0.0

Extent Group 1 / Time Frame 1

CC ID: 1403622
Time Frame Type: Range
Start: 2022-05-31
End: 2022-08-06

Spatial Information

Spatial Resolution

Horizontal Distance: 4357.580871 Nautical Mile
Level of Detail Description:

Enter the level of detail description.

Access Information

Data License: CC0-1.0
Data License URL: https://creativecommons.org/publicdomain/zero/1.0/
Data License Statement: These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0).
Security Class: Unclassified
Data Access Constraints:

None

Distribution Information

Distribution 1

CC ID: 1403625
Download URL: https://www.ncei.noaa.gov/
Distributor:
File Name: Enter the file name.
Description:

Each file is a binary formatted instrument file. Kongsberg/Simrad .raw files are generated by ME70, EK60, EK80 or ES60 instruments. They contain power and optionally angular position data with each beam/frequency identified by an independent channel.The .wcd files are generated by Kongsberg EM302, EM122 or EM710 instruments. Additional file types from other instruments exist in this bucket. See instrument specific documentation for more information.
File Size: Enter the file size of the dow
Application Version: Enter the application version for the download.

URLs

URL 1

CC ID: 1403617
URL: https://noaa-wcsd-pds.s3.amazonaws.com/index.html#data/raw/Oscar_Dyson/
Name: Enter the name of the URL. Required for Browse Graphic URLs.
URL Type:
Browse Graphic
Enter the name of the URL. Required for Browse Graphic URLs.
Description:

url for AWS3 raw data from AFSC MACE Oscar Dyson surveys

Technical Environment

Description:

Software: Echoview post-processing software, v. 8.1 or later. Windows 10 or later OS.

Data Quality

Representativeness:

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Accuracy:

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Analytical Accuracy:

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Horizontal Positional Accuracy:

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Vertical Positional Accuracy:

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Quantitation Limits:

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Bias:

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Comparability:

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Completeness Measure:

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Precision:

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Analytical Precision:

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Field Precision:

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Sensitivity:

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Detection Limit:

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Completeness Report:

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Conceptual Consistency:

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Lineage

Lineage Statement:

Acoustic measurements were collected with a Simrad EK80 scientific echosounder (Bodholt and Solli 1992, Simrad 2018).

Data were collected with five split-beam transducers (18, 38, 70, 120, and 200 kHz)

from 16 m below the sea surface to within 0.5 m of the sounder-detected bottom or a maximum of

1,000 m in deep water. Raw acoustic data were recorded using EK80 software, and analyzed using Echoview post-processing software.

See National Marine Fisheries Service (NMFS) 2014. NOAA protocols for fisheries acoustics surveys and related sampling

(Alaska Fisheries Science Center), 26 p. Prepared by Midwater Assessment and Conservation Engineering Program,

Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA

Sources

National Marine Fisheries Service (NMFS) 2014. NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 26 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA

CC ID: 1403611

Acquisition Information

Instruments

Instrument 1

CC ID: 1403613
Identifier: Simrad EK80
Docucomp UUID: cfc2ac19-b32a-4753-a934-efe8a57cc496
Instrument / Gear: Instrument
Instrument Type: echosounder
Description:

The Simrad EK80 is the most modern "high end" split beam scientific echo sounder in the fishery scientific market. Based on more than 60 years of research and development in close collaboration with leading marine scientists this wide band echo sounder system has succeeded the famous EK60, which became an international standard for fish stock assessment. The Simrad EK80 can operate a large number of frequencies simultaneously ranging from 10 to 500 kHz. A wide selection of high quality accurate transducers is available.

Platforms

Platform 1

CC ID: 1403614
Identifier: Oscar Dyson (DY)
Docucomp UUID: a24caa2a-1c39-41b9-ba7a-eede10ccc4f6
Description:

the Oscar Dyson supports NOAA's mission to protect, restore and manage the use of living marine, coastal, and ocean resources through ecosystem-based management. Its primary objective is as a support platform to study and monitor Alaskan pollock and other fisheries, as well as oceanography in the Bering Sea and Gulf of Alaska. The ship also observes weather, sea state, and other environmental conditions, conducts habitat assessments, and surveys marine mammal and marine bird populations.

Mounted Instrument 1
Identifier: Simrad EK80

Catalog Details

Catalog Item ID: 76708
GUID: gov.noaa.nmfs.inport:76708
Metadata Record Created By: Abigail McCarthy
Metadata Record Created: 2025-07-19 00:50+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2026-03-04 19:17+0000
Metadata Record Published: 2026-01-30
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2026-01-30
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2027-01-30