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.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:ASC397
metadata_type geospatial
modified 20220606
old-spatial -163.05, 69.78, -163.03, 69.77
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 15ca175820cafc9b06e20f988cfd74f161cde77d
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-163.05, 69.78], [-163.05, 69.77], [ -163.03, 69.77], [ -163.03, 69.78], [-163.05, 69.78]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • aerial-photography
  • aerial-surveys
  • alaska
  • amerigeo
  • amerigeoss
  • animals-vertebrates
  • aquatic-ecosystems
  • biota
  • carnivores
  • chukchi-sea
  • ckan
  • coastal-ecosystems
  • environment
  • field-inventory-and-monitoring
  • geo
  • geoss
  • image-collections
  • mammals
  • marine-ecosystems
  • marine-mammals
  • national
  • north-america
  • odobenus-rosmarus-divergens
  • pacific-walrus
  • point-lay
  • seals-sea-lions-walruses
  • united-states
  • usgs-asc397
  • walrus
  • wildlife
isopen False
license_id notspecified
license_title License not specified
maintainer U.S. Geological Survey, Alaska Science Center
maintainer_email ascweb@usgs.gov
metadata_created 2025-11-22T15:44:03.613304
metadata_modified 2025-11-22T15:44:03.613308
notes 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.
num_resources 2
num_tags 30
title Walrus Haulout Outlines and Count Data Apparent from Aerial Survey Images Collected Near Point Lay Alaska, Autumn 2018 and 2019