Short Citation:
Alaska Fisheries Science Center, 2021: AFSC/ABL: Multibeam Database, https://www.fisheries.noaa.gov/inport/item/17287.

Item Identification

Title: AFSC/ABL: Multibeam Database
Short Name: AFSC/ABL: Multibeam Database
Status: Completed
Publication Date: Unknown
Abstract:

Seafloor habitat maps have been created using high resolution multibeam sonar with co-registered backscatter at various locations throughout the Alaska Region. Most of the mapping in the GOA is in the form of postage-stamps ranging in size from 27 km2 to 790 km2. Some of this mapping was in cooperation with the Alaska Department of Fish and Game and the University of Alaska Fairbanks. Such mapped sites in the GOA were generally selected in the areas of fisheries for rockfish (Sebastes spp.). The selection of specific sites to map were influenced by budget and logistic constraints that in some cases limited the fishery habitat mapping to areas near concurrent areas being mapped by NOAAs Office of Coast Survey. In contrast for the Aleutian Islands, a systematic design was used to select sites to map that enabled a relatively substantial area of seafloor to be characterized. In theory such a systematic design allows extrapolation to unmapped areas. Database includes bathymetry and backscatter data files as well as a habitat typing spreadsheet for all areas classified using a deep-water marine benthic habitat scheme modified after Green et al. (1999).

Purpose:

This data set contains high resolution, multi-beam backscatter and bathymetry data from selected sites in the Gulf of Alaska. The sites were surveyed once between 2001 and 2005. After the data has been analysed and published, the data set will hopefully be made available to the public.

Notes:

Loaded by batch 3907, 12-20-2012 13:04

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
None backscatter
None bathymetry
None multi-beam

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
Geographic Names Information System Alaska
Geographic Names Information System Gulf of Alaska
None AK

Physical Location

Organization: Auke Bay Laboratories
City: Juneau
State/Province: AK
Country: US

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Unknown
Data Presentation Form: Document (digital)

Support Roles

Data Steward

CC ID: 82471
Date Effective From: 2012-12-20
Date Effective To:
Contact (Person): Shotwell, Kalei
Email Address: kalei.shotwell@noaa.gov

Distributor

CC ID: 82469
Date Effective From: 2012-12-20
Date Effective To:
Contact (Person): Shotwell, Kalei
Email Address: kalei.shotwell@noaa.gov

Metadata Contact

CC ID: 82472
Date Effective From: 2012-12-20
Date Effective To:
Contact (Person): MC, Metadata Coordinators
Email Address: AFSC.metadata@noaa.gov

Originator

CC ID: 82470
Date Effective From: 2012-12-20
Date Effective To:
Contact (Person): Shotwell, Kalei
Email Address: kalei.shotwell@noaa.gov

Point of Contact

CC ID: 82468
Date Effective From: 2012-12-20
Date Effective To:
Contact (Person): Shotwell, Kalei
Email Address: kalei.shotwell@noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 82467
W° Bound: -176
E° Bound: -130
N° Bound: 62
S° Bound: 48
Description

Gulf of Alaska, Alaska

Extent Group 1 / Time Frame 1

CC ID: 82466
Time Frame Type: Range
Start: 2001
End: 2005

Access Information

Security Class: Unclassified
Data Access Procedure:

N/A

Data Access Constraints:

Contact the Point of Contact for data request form.

Data Use Constraints:

User must read and fully comprehend the metadata prior to use. Data should not be used beyond the limits of the source scale. Acknowledgement of NOAA, as the source from which these data were obtained, in any publications and/or other representations of these data is suggested.

Distribution Information

Distribution 1

CC ID: 233675
Download URL: https://www.ncei.noaa.gov/
Distributor:
Description:

NCEI to be determined

Technical Environment

Description:

ASCII files and Microsoft Excel spreadsheet

Data Quality

Completeness Report:

None

Quality Control Procedures Employed:

Contact the dataset POC for full QA/QC methodology

Data Management

Have Resources for Management of these Data Been Identified?: Yes
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?: Yes
If Distributor (Data Hosting Service) is Needed, Please Indicate: yes
Approximate Delay Between Data Collection and Dissemination: unknown
If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed:

no delay

Actual or Planned Long-Term Data Archive Location: To Be Determined
If To Be Determined, Unable to Archive, or No Archiving Intended, Explain:

NCEI site yet to be determined

Approximate Delay Between Data Collection and Archiving: unknown
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:

Contact the dataset POC for full methodology

Catalog Details

Catalog Item ID: 17287
Metadata Record Created By: Doug Turnbull
Metadata Record Created: 2012-12-20 13:04+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-06-04 13:14+0000
Metadata Record Published: 2016-05-18
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2017-05-19