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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

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

ISO 19115 Topic Category

Biota, Environment

Other Subject Keywords

Animals/Vertebrates, Carnivores, Pacific Walrus, Aerial surveys, Mammals, Odobenus rosmarus divergens, Seals/sea lions/walruses, Age composition, Walrus, Marine mammals

Place Keywords

Point Lay, Alaska, Chukchi Sea

Walrus Haulout Outlines Apparent from Satellite Imagery Near Point Lay Alaska, Autumn 2018-2020

These data are in three folders of Keyhole Markup Language (KML) geospatial polygons representing the outlines of walrus herds apparent in satellite imagery. Each KML file contains one or more geospatial polygons of walrus herd outlines created by one observer who visually interpreted the images. The attribute values from all KML files are collected in a CSV table included with this data package.

Get Data and Metadata
Author(s) Anthony S Fischbach orcid, David C Douglas orcid, Collin J Monette orcid
Publication Date 2021-08-25
Beginning Date of Data 2018-08-15
Ending Date of Data 2020-09-05
Data Contact
U.S. Geological Survey, Alaska Science Center
DOI https://doi.org/10.5066/P9S2UL7N
Citation Fischbach, A.S., Douglas, D.C., and Monette, C.J., 2021, Walrus Haulout Outlines Apparent from Satellite Imagery Near Point Lay Alaska, Autumn 2018-2020: U.S. Geological Survey data release, https://doi.org/10.5066/P9S2UL7N.
Metadata Contact
U.S. Geological Survey, Alaska Science Center
Metadata Date 2021-10-25
Related Publication
Citations of these data

Loading https://doi.org/10.3390/rs13214266
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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