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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

Image collections, Coastal ecosystems, Field inventory and monitoring, Aquatic ecosystems, Marine ecosystems, Wildlife, Aerial photography

ISO 19115 Topic Category

Biota, Environment

Other Subject Keywords

Walrus, Aerial surveys, Pacific Walrus, Mammals, Odobenus rosmarus divergens, Marine mammals, Seals/sea lions/walruses, Carnivores, Animals/vertebrates, Aerial photography

Place Keywords

Alaska, Chukchi Sea, Point Lay

Walrus Haulout Outlines and Count Data Apparent from Aerial Survey Images Collected Near Point Lay Alaska, Autumn 2018 and 2019

This dataset provides walrus haulout group outlines, systematic grids cast over the outlines, and digitized points at the centroids of the individual walruses identified inside a randomly selected subset of grid cells. These data are based on visual interpretation of imagery from 26 aerial surveys by an Unoccupied Aerial System (UAS) operated by the U.S. Geological Survey, Alaska Science Center over large groups of walruses resting onshore near Point Lay, Alaska during the autumns of 2018 and 2019.

Get Data and Metadata
Author(s) Anthony S Fischbach orcid, Chadwick V Jay orcid, Collin J Monette orcid, Josip D Adams orcid
Publication Date 2021-07-14
Beginning Date of Data 2018-09-06
Ending Date of Data 2019-09-05
Data Contact
U.S. Geological Survey, Alaska Science Center
DOI https://doi.org/10.5066/P959H1EH
Citation Fischbach, A.S., Jay, C.V., Monette, C.J., and Adams, J.D., 2021, Walrus Haulout Outlines and Count Data Apparent from Aerial Survey Images Collected Near Point Lay Alaska, Autumn 2018 and 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P959H1EH.
Metadata Contact
U.S. Geological Survey, Alaska Science Center
Metadata Date 2023-03-14
Related Publication
Citations of these data

Loading https://doi.org/10.1002/jwmg.22256
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: Alaska Science Center
Harvest Date: 2025-03-04T04:02:45.918Z