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Location Folder Show Tree ROOT ScienceBase Catalog Users Filters Date Range Past year (4) Past month (3) Past week (0) Past day (0) Custom range... To   Search Contacts Ecosystems USGS ScienceBase Team Anthony S Fischbach Michael L Casazza Paul L Flint More... Categories Data (3) Tag Types Theme (4) Place (4) Harvest Set (4) USGS Scientific Topic Keyword (2) Tag Schemes USGS Thesaurus (4) None (4) NASA GCMD Earth Science Keyword Thesaurus (4) USGS Geographic Names Information System (GNIS) (4) ISO 19115 Topic Category (4) USGS CSA Biocomplexity Thesaurus (3) NGA GEOnet Names Server (2) More... View Results as: JSON ATOM CSV Browse Folder

SUPERSEDED: Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery, 2023 This data release has been SUPERSEDED. No data are provided here. The geospatial outlines and herd size estimates of Chukchi Sea autumn walrus haulouts, interpreted from Satellite imagery, have been combined into a single updated U.S. Geological Survey data release: https://doi.org/10.5066/P9CSM0KN This data release contains maps, geospatial files, and a table of the satellite imagery types with the dates when they were collected and examined to interpret the presence of, and area occupied by, walruses at terrestrial haulouts. Estimates of the land area occupied by walruses are provided based on interpretation by experienced image reviewers. The images are from a variety of Earth observing satellite imagery sources... Tags: Alaska, Animals/vertebrates, Biota, Cape Serdtse-Kamen, Carnivores, All tags... 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, Point Lay, Remote sensing, Russia, Satellite imagery, Seals/sea lions/walruses, Seasonal distribution, USGS Science Data Catalog (SDC), Walrus, Wildlife, Fewer tags 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. Additional walrus satellite image-derived Chukchi Sea walrus haulout outlines are available in another USGS data release (Fischbach and Douglas 2022; https://doi.org/10.5066/P9CSM0KN) Categories: Data; Tags: Aerial surveys, Age composition, Alaska, Animals/Vertebrates, Biota, All tags... Carnivores, Chukchi Sea, Coastal ecosystems, Environment, Field inventory and monitoring, Mammals, Marine ecosystems, Marine mammals, Migratory species, Odobenus rosmarus divergens, Pacific Walrus, Point Lay, Remote sensing, Seals/sea lions/walruses, Seasonal distribution, USGS Science Data Catalog (SDC), Walrus, Wildlife, Wildlife Biology, Fewer tags Movement Data for Migrating Geese Over the Northeast Pacific Ocean, 2018-2021 This dataset consists of one table with a record (row) for each goose location and columns containing location information and covariates. The dataset was used in an analysis of altitude selection and flight propensity in an accompanying paper (Weiser et al. 2024) and is being provided here to allow replication of that analysis. Goose locations (latitude, longitude, and altitude) were collected with GPS tags and represent three subspecies: Pacific Greater White-fronted Goose, Tule Greater White-fronted Goose, and Lesser Snow Goose. Covariates include weather information from ERA5 (Hersbach et al. 2022). In addition to the "used" locations (altitudes at which birds were recorded), the dataset also includes "available"... Categories: Data; Tags: Alaska, Animal behavior, Animal tracking, Animals/Vertebrates, Anser albifrons elgasi, All tags... Anser albifrons sponsa, Anser caerulescens caerulescens, Biota, Birds, British Columbia, California, Ducks/Geese/Swans, Environment, GPS, Geospatial datasets, Greater White-fronted Goose, Human impacts, Human wildlife interactions, Marine ecosystems, Migration (organisms), Migratory birds, Migratory rates/routes, Oregon, Pacific Ocean, Pelagic habitat, Seasonal movement, Snow Goose, USGS Science Data Catalog (SDC), Washington, Waterfowl, Fewer tags 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)... Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Carnivores, Chukchi Sea, All tags... 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 Science Data Catalog (SDC), Walrus, Wildlife, Wildlife Biology, Fewer tags