17287 AFSC/ABL: Multibeam Database Data Set Published / External 12324 Auke Bay Laboratories Project Completed Unknown 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). 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. Loaded by batch 3907, 12-20-2012 13:04 Theme backscatter Theme bathymetry Theme multi-beam Spatial Geographic Names Information System Alaska Spatial Geographic Names Information System Gulf of Alaska Spatial AK Auke Bay Laboratories Juneau AK US Data Set Unknown Document (digital) unknown unknown unknown Data Steward 2012-12-20 Person Shotwell, Kalei kalei.shotwell@noaa.gov Distributor 2012-12-20 Person Shotwell, Kalei kalei.shotwell@noaa.gov Originator 2012-12-20 Person Shotwell, Kalei kalei.shotwell@noaa.gov Point of Contact 2012-12-20 Person Shotwell, Kalei kalei.shotwell@noaa.gov Ground Condition -176 -130 62 48 Gulf of Alaska, Alaska Range 2001 2005 Unclassified N/A Contact the Point of Contact for data request form. 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. https://www.ncei.noaa.gov/ NCEI to be determined ASCII files and Microsoft Excel spreadsheet None Contact the dataset POC for full QA/QC methodology Yes Unknown Yes Yes yes unknown no delay To Be Determined unknown 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. Contact the dataset POC for full methodology gov.noaa.nmfs.inport:17287 Doug Turnbull 2012-12-20T13:04:35 SysAdmin InPortAdmin 2025-05-15T19:15:45 2016-05-18 Alaska Fisheries Science Center AFSC 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov 0700-1700 Pacific Time 1001 Public No No 2016-05-18 1 Year 2017-05-18 Bathymetry Table None Database developer Latitude None Database developer No domain defined. Longitude None Database developer No domain defined. Depth None Database developer No domain defined. Backscatter Table None Database developer Latitude None Database developer No domain defined. Longitude None Database developer No domain defined. Backscatter None Database developer No domain defined. Habitat Table None Database developer Area Name location name of the site mapped Database developer No domain defined. Region general term for location of site Database developer No domain defined. Habitat number number given to each habitat when it was classifed Database developer No domain defined. Habitat type short name of the habitat Database developer No domain defined. Habitat code classification code based on Greene et al 1999 scheme Database developer No domain defined. Habitat description short geological description of hte habitat type Database developer No domain defined. Merged habitat description of whether this habitat can be merged with another larger habitat Database developer No domain defined. Sampled descritption of hwat other types of data are found within that habitat type Database developer No domain defined.