Data · dataset · 2026
Walrus Monthly Foraging Utilization Distribution in the Chukchi Sea: 2008-2011 [Jay]
Listed in National Center for Atmospheric Research
This dataset describes Pacific walrus (Odobenus rosmarus divergens) utilization of the Chukchi sea by tracking walruses and their hourly foraging behavior from June through November using satellite-linked tags during years of sparse sea ice (2008-2011).
Description
To estimate the density of walrus foraging on a monthly basis, a movement-based kernel density estimator application was used to predict walrus utilization over a 5 km resolution grid encompassing the Chukchi Sea.
It generated utilization density contours from the gridded utilization distribution. The utilization density contours are provided for environmental planning purposes and may only be understood within the context of the published manuscript. This dataset is part of the Pacific Marine Arctic Regional Synthesis (PacMARS) Project.
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Data is structured by month, which ranges from June through November. Within each month walrus foraging utilization distributions were estimated by weighting the kernel density distribution by the amount of time spent foraging during each recorded track segment. Presented are contour intervals ranging from 10th to 95th percentile in the geographically referenced Portable Network Graphic files and shape files referenced below in the related links.
Links
Get the data
- Resource Homepage doi.org/10.5065/d6kw5d2x ↗
download · DOI / persistent id · from data ucar edu
Where it is published
- data.ucar.edu /dataset/walrus-monthly-foraging-utilization-distribution-in-th… ↗
National Center for Atmospheric Research dataset page
landing page · from data ucar edu
Catalogue records · 1
- CKAN API data.ucar.edu/api/3/action/package_show?id=43c4efcc-2b9a-45e8-8145-67268a599… ↗
metadata API · from data ucar edu
Topics
- Stated by source
- PacMARS: Pacific Marine Arctic Regional Synthesis
- From keywords
- Earth & Environmental Science · Life Sciences · Mammalia · Ocean & Atmospheric Science · Social Science
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | 43c4efcc-2b9a-45e8-8145-67268a5996d3 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:social-science | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[organism].NCBITaxon:40674 | mapping · data ucar edu | vocabulary-mapper@1.0.0 | keywords['mammals'] |
| concepts[topic].ckan_group:data_ucar_edu:edu-ucar-eol-255-000 | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| created_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| description | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /notes |
| publication_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| title | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /title |
| updated_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 |