AFSC/RACE/GAP/Prescott: Central Gulf of Alaska Multibeam Survey H11354
Alaska Fisheries Science Center
Data Set
(DS)
| ID: 22953
| Published / External
Created: 2014-12-23
|
Last Modified: 2024-01-15
Project (PRJ) | ID: 22291
ID: 22953
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AFSC/RACE/GAP/Prescott: Central Gulf of Alaska Multibeam Survey H11354 |
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Short Name | AFSC/RACE/GAP/Prescott: Central Gulf of Alaska Multibeam Survey H11354 |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2015 |
* » Abstract |
We assembled 1.75 million National Ocean Service (NOS) bathymetric soundings from 225 lead-line and single-beam echosounder hydrographic surveys conducted from 1901 to 1999 in the central Gulf of Alaska. These bathymetry data are available from the National Geophysical Data Center (NGDC: http://www.ngdc.noaa.gov), which archives and distributes data that were originally collected by the NOS and others. While various bathymetry data have been downloaded previously from NGDC, compiled, and used for a variety of projects, our effort differed in that we compared and corrected the digital bathymetry by studying the original analog source documents - digital versions of the original survey maps, called smooth sheets. There were several areas where these older surveys were superseded by more recent, higher quality multibeam surveys, mostly from the NOS (n=106). Three of these were unprocessed NOS multibeam surveys in the Sitka area, which we edited and processed into final bathymetric surfaces. We reduced the resolution of these multibeam surveys to 100 m, since some may have sub-meter resolution and many exceed a million soundings, and added them to our bathymetry compilation. Survey H11354 was missing in the entrance to Sitka Sound. Processing and adding its bathymetric data to our compilation filled in a substantial gap in Sitka area. |
* Purpose |
The purpose for creating this coverage was to fill in gaps with previously unprocessed multibeam data set, that were missing in the central Gulf of Alaska data set. Combined with other bathymetric data in the region this work is useful for predictive, geospatial modeling of marine resources. |
Notes |
Loaded by FGDC Metadata Uploader, batch 5281, 01-06-2015 13:56 The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export: - Spatial Reference Information (FGDC:spref), - Spatial Data Organization Information (FGDC:spdoinfo) - Lineage (FGDC:lineage) |
Other Citation Details | |
• Supplemental Information | |
DOI (Digital Object Identifier) | |
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Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category | elevation |
ISO 19115 Topic Category | imageryBaseMapsEarthCover |
ISO 19115 Topic Category | oceans |
None | Alaska |
None | bathymetry |
None | Gulf of Alaska |
None | North Pacific Ocean |
None | point |
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* Spatial Keywords
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Physical Location
• » Organization | Alaska Fisheries Science Center |
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• » City | Seattle |
• » State/Province | WA |
• Country | USA |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | None Planned |
Maintenance Note | |
» Data Presentation Form | digital point data |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
Distribution Liability | |
Data Set Credit | This multibeam bathymetry was processed by Megan Prescott. Funding for much of the work was provided by NOAA's Essential Fish Habitat (EFH), Habitat and Ecological Processes Research (HEPR) through the Alaska NMFS Regional Office. B. McMahon, G. Nelson (retired) and especially C. Barry (Pacific Hydrographic Branch of the NOS) provided assistance with interpreting smooth sheets, bathymetric sounding files, and descriptive reports. D. Doyle and J. Benson provided valuable datum and GIS advice, respectively. D. Fischman, G. Glover, J.A. Bunn, J. Campagnoli, M. Frydrych, and M. Cole from the National Geophysical Data Center helped with accessing smooth sheets on the NGDC web site. |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2015 |
Date Effective To | |
Person | Prescott, Megan |
Email Address | megan.prescott@noaa.gov |
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Fax | |
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URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2015 |
Date Effective To | |
Organization | Alaska Fisheries Science Center (AFSC) |
Address |
7600 Sand Point Way N.E., Building 4 Seattle, WA 98115 USA |
Email Address | afsc.webmaster@noaa.gov |
Phone | (206) 526-4000 |
Fax | (206) 526-4004 |
Mobile | |
URL | https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center |
Business Hours | 0700-1700 Pacific Time |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2015-01-06 |
Date Effective To | |
Person | Prescott, Megan |
Email Address | megan.prescott@noaa.gov |
Phone | |
Fax | |
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URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Originator |
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* » Date Effective From | 2015-01-06 |
Date Effective To | |
Person | Prescott, Megan |
Email Address | megan.prescott@noaa.gov |
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Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2015 |
Date Effective To | |
Person | Prescott, Megan |
Email Address | megan.prescott@noaa.gov |
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Extents
Currentness Reference | observed |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -135.47 |
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* » E° Bound | -135.35 |
* » N° Bound | 57.03 |
* » S° Bound | 56.94 |
* » Description |
A 97.73 km2 region in the entrance to Sitka Sound, Eastern Channel. |
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2004 |
End | 2004 |
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Spatial Information
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Access Information
Data License | |
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Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure |
unknown |
• » Data Access Constraints |
These data are not to be used for navigation. |
• Data Use Constraints |
These data are not to be used for navigation. We consider this bathymetry compilation a fairly complete first draft and sufficient in quality for addition to the central Gulf of Alaska bathymetry compilation. |
Metadata Access Constraints | |
Metadata Use Constraints |
These data are not to be used for navigation. |
Distribution Information
Start Date | |
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» Download URL | http://www.afsc.noaa.gov/RACE/groundfish/bathymetry/CGOA_H11354.zip |
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» Download URL | https://www.ncei.noaa.gov |
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URLs
URL | http://www.afsc.noaa.gov/RACE/groundfish/bathymetry/CGOA_H11354.zip |
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URL Type | Online Resource |
File Resource Format | ZIP |
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Technical Environment
Description |
Microsoft Windows 7 Version 6.1 (Build 7600) ; ESRI ArcGIS 10.0.0 ; CARIS HIPS and SIPS 7.1 |
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Completeness Report |
Processing followed guidelines laid out by NGDC in the Data Aquisition and Processing Report (http://surveys.ngdc.noaa.gov/mgg/NOS/DAPRs/OPR-O112-RA-04_DAPR.pdf), in order to provide comparable work. It was carried out in Caris Hips and Sips 7.1 then exported into ArcGIS 10.0.0, to be added to our additional smooth sheet and multibeam data. |
Conceptual Consistency |
not applicable |
» Quality Control Procedures Employed |
unknown |
Data Management
» Have Resources for Management of these Data Been Identified? | No |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | Unknown |
» Do these Data Comply with the Data Access Directive? | No |
» Is Access to the Data Limited Based on an Approved Waiver? | No |
» 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 | |
» Actual or Planned Long-Term Data Archive Location | NCEI-MD |
» 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 |
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Acquisition Information
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Child Items
Rubric scores updated every 15m
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Related Items
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Catalog Details
Catalog Item ID | 22953 |
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Metadata Record Created By | Nancy Roberson |
Metadata Record Created | 2014-12-23 11:33+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2024-01-15 12:08+0000 |
Metadata Record Published | 2016-05-18 |
Owner Org | AFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2016-05-18 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2017-05-18 |
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