Bering-Okhotsk Seal Survey (BOSS) On-Effort Flight Tracks (2012-13)

Metadata Updated: October 1, 2021

Aerial surveys were flown during the spring of 2012 and 2013 as part of the Bering Okhotsk Seal Surveys (BOSS) project to gather data on distribution and abundance of ice-associated seals in the eastern Bering Sea. The distributions of these seals are broad and patchy, resulting in surveys that cover large areas and encounter rapidly changing environmental conditions. Surveys were flown using a fixed-wing aircraft with a paired system of digital cameras and thermal imagers operated by observers and mounted in the belly port. Flight tracks were recorded with an attitude and heading reference system (AHRS) that also recorded location information at one second intervals. A secondary flight track was recorded with a GPS which was used to supplement location information when there was a glitch with the AHRS. BOSS on-effort flight tracks were used to calculate total distance and area flown for estimating seal abundance, in addition to georeferencing digital and thermal imagery collected in flight. On-effort flight tracks (survey effort) were initially determined by the observer based on environmental conditions and later refined based on aircraft attitude and imagery review. The spatial data are provided in the geographic (epsg:4326) coordinate reference system.

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 July 28, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date October 1, 2021
Reference Date(s) (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NMFS AFSC

Additional Metadata

Resource Type Dataset
Metadata Date July 28, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date October 1, 2021
Reference Date(s) (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:28315
Access Constraints Cite As: Alaska Fisheries Science Center, [Date of Access]: Bering-Okhotsk Seal Survey (BOSS) On-Effort Flight Tracks (2012-13) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/28315., Access Constraints: The data set is in the process of being archived with the NOAA National Centers for Environmental Information. Once the archival process is complete and verified, the data set will be publicly available. | 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. While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Acknowledge NOAA/NMFS/AFSC or the specified citation as the source from which these data were obtained in any publications and/or other representations of these data. Communication and collaboration with dataset authors is strongly encouraged. | Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Bbox East Long -155
Bbox North Lat 66
Bbox South Lat 55
Bbox West Long -180
Coupled Resource
Frequency Of Update notPlanned
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": [[[-180.0, 55.0], [-155.0, 55.0], [-155.0, 66.0], [-180.0, 66.0], [-180.0, 55.0]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2012-04-06
Temporal Extent End 2012-05-23

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