AFSC/RACE/MACE: Results of 2020 acoustic saildrone survey Eastern Bering Sea SD1043_2020-01
Data Set (DS) | Alaska Fisheries Science Center (AFSC)GUID: gov.noaa.nmfs.inport:65623 | Updated: March 26, 2025 | Published / External
- View As
- View in Hierarchy
Summary
Short Citation
Alaska Fisheries Science Center, 2025: AFSC/RACE/MACE: Results of 2020 acoustic saildrone survey Eastern Bering Sea SD1043_2020-01, https://www.fisheries.noaa.gov/inport/item/65623.
Full Citation Examples
Eastern Bering Sea shelf walleye pollock (Gadus chalcogrammus) midwater abundance and distribution were assessed using 3 Saildrone autonomous vehicles due to Covid-19 restrictions.
Distribution Information
The data set has been analyzed and published, data are available.
User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale.
Child Items
No Child Items for this record.
Contact Information
Point of Contact
Alex DeRobertis
alex.derobertis@noaa.gov
206 526 4789
Metadata Contact
Metadata Coordinators MC
afsc.metadata@noaa.gov
Extents
-173.5458° W,
-168.7448° E,
61.1067° N,
55.568° S
Enter a description for the geographic extent.
2020-07-03 - 2020-08-19
Enter a description of the time frame.
Item Identification
| Title: | AFSC/RACE/MACE: Results of 2020 acoustic saildrone survey Eastern Bering Sea SD1043_2020-01 |
|---|---|
| Short Name: | 2020 Eastern Bering Sea Saildrone survey s/n 1043 |
| Creation Date: | 2020-08-19 |
| Revision Date: | 2020-08-19 |
| Abstract: |
Eastern Bering Sea shelf walleye pollock (Gadus chalcogrammus) midwater abundance and distribution were assessed using 3 Saildrone autonomous vehicles due to Covid-19 restrictions. |
| Purpose: |
NOAA Fisheries/Alaska Fisheries Science Center (AFSC) acoustic stock assessment surveys of walleye pollock (Gadus chalcogrammus) in the eastern Bering Sea area of the Gulf of Alaska (EBS) conducted on 4 July-20 August 2020 using three saildrone uncrewed surface vehicles (USVs). |
| Notes: |
The EK80 echosounder system transducers installed on the saildrones are mounted in a gimbal mount on the vehicle keel at a depth of 1.9 m (i.e. draft correction setting of 1.9 meters below the surface should be applied). Data during the survey were collected at a pulse length of 0.512 milliseconds. Note that some data during transits in deeper water in this data set were collected at pulse length of 1.024 milliseconds. |
| Other Citation Details: |
https://doi.org/10.1093/icesjms/fsab155 |
| Supplemental Information: |
Enter supplemental information if applicable. |
Keywords
Theme Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| Enter the thesaurus that the keyword belongs to. Do not provide this node if no thesaurus exists. | Pollock, Alaska, Acoustics, Saildrone |
Physical Location
| Organization: | Alaska Fisheries Science Center |
|---|---|
| City: | Seattle |
| State/Province: | WA |
| Country: | USA |
Data Set Information
| Data Set Scope Code: | Data Set |
|---|---|
| Data Set Type: | Files |
| Maintenance Frequency: | None Planned |
| Data Presentation Form: | Document (digital) |
| Entity Attribute Overview: |
Enter an overview of the data set's entity and attribute information. |
| Entity Attribute Detail Citation: |
Enter a citation for detailed information on the data set's entities and attributes. |
| Entity Attribute Detail URL: | https://doi.org/10.1093/icesjms/fsab155 |
| Distribution Liability: |
Enter the distribution liability statement. |
| Data Set Credit: | Enter credits to external persons or organizations contributing to the data set. |
Support Roles
Data Steward
| Date Effective From: | 2015 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Towler, Rick |
| Email Address: | rick.towler@noaa.gov |
Distributor
| Date Effective From: | 2015 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Anderson, Charles |
| Address: |
325 Broadway, E/GC3 Boulder, CO 33149 |
| Email Address: | charles.anderson@noaa.gov |
| Phone: | 303-497-4742 |
Metadata Contact
| Date Effective From: | 2014-07-31 |
|---|---|
| Date Effective To: | |
| Contact (Position): | Metadata Coordinators MC |
| Email Address: | afsc.metadata@noaa.gov |
Originator
| Date Effective From: | 2014-07-31 |
|---|---|
| Date Effective To: | |
| Contact (Person): | DeRobertis, Alex |
| Email Address: | alex.derobertis@noaa.gov |
| Phone: | 206 526 4789 |
Point of Contact
| Date Effective From: | 2015 |
|---|---|
| Date Effective To: | |
| Contact (Person): | DeRobertis, Alex |
| Email Address: | alex.derobertis@noaa.gov |
| Phone: | 206 526 4789 |
Extents
Extent Group 1
| Extent Description: |
Enter a general description of the extent, if any. |
|---|
Extent Group 1 / Geographic Area 1
| W° Bound: | -173.5458 | |
|---|---|---|
| E° Bound: | -168.7448 | |
| N° Bound: | 61.1067 | |
| S° Bound: | 55.568 | |
| Description |
Enter a description for the geographic extent. |
|
Extent Group 1 / Time Frame 1
| Time Frame Type: | Range |
|---|---|
| Start: | 2020-07-03 |
| End: | 2020-08-19 |
| Description: |
Enter a description of the time frame. |
Access Information
| Security Class: | Unclassified |
|---|---|
| Data Access Procedure: |
Go to https://www.ngdc.noaa.gov/mgg/wcd/ or email Anderson, Charles (charles.anderson@noaa.gov) |
| Data Access Constraints: |
The data set has been analyzed and published, data are available. |
| Data Use Constraints: |
User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale. |
Distribution Information
Distribution 1
| Download URL: | https://doi.org/10.25921/a4m9-fa81 |
|---|---|
| Distributor: |
URLs
URL 1
| URL: | https://www.ngdc.noaa.gov/mgg/wcd/ |
|---|---|
| Name: | Enter the name of the URL. Required for Browse Graphic URLs. |
| File Resource Format: | Enter the file resource format |
| Description: |
Enter the URL description. |
Data Quality
| Quality Control Procedures Employed: |
These data were collected in accordance with NOAA protocols for saildrone surveys and related sampling. Publication available online: ICES Journal of Marine Science (2021), https://doi.org/10.1093/icesjms/fsab155 |
|---|
Data Management
| Have Resources for Management of these Data Been Identified?: | No |
|---|---|
| Approximate Percentage of Budget for these Data Devoted to Data Management: | Unknown. |
| Do these Data Comply with the Data Access Directive?: | Yes |
| Is Access to the Data Limited Based on an Approved Waiver?: | No |
| Approximate Delay Between Data Collection and Dissemination: | 180 |
| If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed: |
If the delay between data collection and dissemination is longer than the latency of automated processing, explain under what authority data access is delayed. This field should only be included if the delay is longer than the latency of automated processing. |
| Actual or Planned Long-Term Data Archive Location: | NCEI-CO |
| Approximate Delay Between Data Collection and Archiving: | 180 |
| How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?: |
IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption. |
Lineage
| Lineage Statement: |
The primary water column acoustic instrument for the survey was a Simrad EK80 mini scientific echosounder system equipped with a dual frequency ES38-18/200-18CR transducer (38 kHz split-beam, 200 kHz single beam). Data were analyzed using Myriax Echoview post-processing software. |
|---|
Acquisition Information
Instruments
Instrument 1
| 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. |
Catalog Details
| Catalog Item ID: | 65623 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:65623 |
| Metadata Record Created By: | Abigail McCarthy |
| Metadata Record Created: | 2021-10-18 21:44+0000 |
| Metadata Record Last Modified By: | SysAdmin InPortAdmin |
| Metadata Record Last Modified: | 2025-03-26 20:53+0000 |
| Metadata Record Published: | 2021-10-21 |
| Owner Org: | AFSC |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2021-10-21 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2022-10-21 |