Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery
This dataset is derived from images from a variety of Earth observing satellite imagery sources collected at known walrus coastal haulouts in Alaska and Chukotka, Russia. Earth observing imagery sources used in this data release include (but are not limited to) optical imagery collections by: (1) the European Space Agency's Sentinel-2 mission, (2) the Plant Labs Planet Scope constellation, and (3) Maxar satellites, as well as synthetic aperture radar imagery collected by: (1) European Space Agency's Sentinel-1 mission, (2) the DLR (German Aerospace Agency) TerraSAR-X satellite, (3) the Umbra Space satellite constellation, (4) the Canadian Radarsat-2 satellite, (5) the Capella Space satellite constellation and (6) the Finnish Iceye constellation. This data package provides: A) geospatial polygon outlines of walrus herds apparent to trained interpreters in satellite images; B) a table listing the satellite images examined that had clear views of the walrus coastal haulout study sites and the area of all walrus herds (if any were present) summarized from the geospatial polygon outlines of walrus herds apparent to trained interpreters, and C) maps (not available for all haulouts in all years) showing interpreted herd outlines superimposed on the satellite images.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "U.S. Geological Survey, Alaska Science Center",
"@type": "vcard:Contact",
"hasEmail": "mailto:gs-ak_asc_datamanagers@usgs.gov"
}
|
| description | This dataset is derived from images from a variety of Earth observing satellite imagery sources collected at known walrus coastal haulouts in Alaska and Chukotka, Russia. Earth observing imagery sources used in this data release include (but are not limited to) optical imagery collections by: (1) the European Space Agency's Sentinel-2 mission, (2) the Plant Labs Planet Scope constellation, and (3) Maxar satellites, as well as synthetic aperture radar imagery collected by: (1) European Space Agency's Sentinel-1 mission, (2) the DLR (German Aerospace Agency) TerraSAR-X satellite, (3) the Umbra Space satellite constellation, (4) the Canadian Radarsat-2 satellite, (5) the Capella Space satellite constellation and (6) the Finnish Iceye constellation. This data package provides: A) geospatial polygon outlines of walrus herds apparent to trained interpreters in satellite images; B) a table listing the satellite images examined that had clear views of the walrus coastal haulout study sites and the area of all walrus herds (if any were present) summarized from the geospatial polygon outlines of walrus herds apparent to trained interpreters, and C) maps (not available for all haulouts in all years) showing interpreted herd outlines superimposed on the satellite images. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9CSM0KN",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.ASC482.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_ASC482 |
| keyword |
[
"Alaska",
"Animals/Vertebrates",
"Biota",
"Carnivores",
"Chukchi Sea",
"Chukotka",
"Coastal ecosystems",
"Environment",
"Field inventory and monitoring",
"Image collections",
"Mammals",
"Marine ecosystems",
"Marine mammals",
"Migratory species",
"Odobenus rosmarus divergens",
"Pacific Walrus",
"Pinniped",
"Remote sensing",
"Russia",
"Satellite imagery",
"Seals/sea lions/walruses",
"Seasonal distribution",
"USGS:ASC482",
"Walrus",
"Wildlife"
]
|
| modified | 2025-12-08T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -180.0000, 64.9794, -158.0273, 71.8836 |
| theme |
[
"Geospatial"
]
|
| title | Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery |
