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AFSC/NMML: Small cetacean aerial survey in Alaskan waters, 1997-1999

Metadata Updated: September 2, 2022

Aerial surveys were conducted to produce abundance estimates for the three Alaska stocks of harbor porpoise. Surveys occurred from May to July 1997 for the Southeast Alaska stock, May to July 1998 for the Gulf of Alaska stock, and June to July 1999 for the Bering Sea stock. Two primary observers observed from bubble windows on the left and right side of the plane. A belly window observer with a view directly down along the trackline collected sightings that were matched to the side observers and used to estimate a correction factor for perception bias that was specific to harbor porpoise in Alaskan waters.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date August 9, 2022
Metadata Created Date November 12, 2020
Metadata Updated Date September 2, 2022
Reference Date(s) 1997 (creation), (publication)
Frequency Of Update notPlanned

Additional Metadata

Resource Type Dataset
Metadata Date August 9, 2022
Metadata Created Date November 12, 2020
Metadata Updated Date September 2, 2022
Reference Date(s) 1997 (creation), (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:26315
Access Constraints Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/NMML: Small cetacean aerial survey in Alaskan waters, 1997-1999 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/26315., Access Constraints: There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. | Use Constraints: User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement of NOAA/NMFS/AFSC, as the source from which these data were obtained in any publications and/or other representations of these, data is suggested. | Distribution Liability: The user is responsible for the results of any application of this data for other than its intended purpose. NOAA denies liability if the data are misused.
Bbox East Long -130
Bbox North Lat 62
Bbox South Lat 54
Bbox West Long -165
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id 5d4b65f0-222e-45f2-8df3-1da1446d99fc
Harvest Source Id 26a29bb9-50b0-47fd-920b-edc74aa6ec76
Harvest Source Title NMFS AFSC
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-165.0, 54.0], [-130.0, 54.0], [-130.0, 62.0], [-165.0, 62.0], [-165.0, 54.0]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1997
Temporal Extent End 1999

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