Tracking Data for Pacific Walrus (Odobenus rosmarus divergens) ...

• Main Authors: Jay, Chadwick V, Fischbach, Anthony S, Kochnev, Anatoly A., Hills, Susan, Douglas, David C
• Format: Dataset
• Language: unknown
• Published: U.S. Geological Survey 2022
• Subjects: Animals/Vertebrates, Mammals, Carnivores, Seals/Sea Lions/Walruses, Migratory rates/routes, Species life history, Telemetry, Seasonal distribution, Seasonal movement, Overwintering, Breeding sites, Capture-recapture studies, Tracking equipment, Tagging devices, Wildlife, Migratory species, Coastal ecosystems, Marine ecosystems, Animal tracking, Satellite transmitter, Platform Transmitter Terminal, PTT, Argos, Telonics, Inc., Wildlife Computers, Inc., H.A.B.I.T. Research, Ltd, Pacific walrus; Pacific; Chukchi; Odobenus rosmarus; walrus*
• Online Access: https://dx.doi.org/10.5066/f7fq9tp6; https://www.usgs.gov/centers/alaska-science-center/science/tracking-data-pacific-walrus-odobenus-rosmarus-divergens

This metadata document describes the data contained in the "processedData" folder of this data package. This data package contains all data collected by the Argos System from 921 satellite transmitters attached to adult Pacific walruses in the Bering and Chukchi Seas, in U.S. and Russian waters, 1988-2019. The raw data were processed to accomplish two goals: flag implausible location estimates and decode raw sensor data. Very few transmitters (n=5) also carried GPS receivers. Because the GPS locations were communicated through the Argos System, a time series of Argos (Doppler) tracking data for those 5 transmitters also exists and is included. Four Comma Separate Value (CSV) tables are included in the "processedData" folder of this data package: 1) the "GPS_filteredLocations" table contains one record for every GPS location obtained, accompanied by a binary flag that denotes an algorithm's plausibility check (based on a speed threshold of 35 m/s); 2) the "diag_filteredLocations" table contains one record for ...