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Synthetic Aperture Radar (SAR) satellite images of a walrus haulout in Russia

By Alaska Science Center October 2022 (approx.)
Two panels showing two Capella Space Synthetic Aperture Radar (SAR) satellite images of a walrus haulout in Russia.
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Detailed Description

Figure showing two Capella Space Synthetic Aperture Radar (SAR) satellite images of a walrus haulout in Russia during and after walrus occupancy. USGS has found that SAR imagery can detect walruses when they rest on shore in large numbers and is pursuing studies to understand how satellite imagery can support improved management of the Pacific walrus. Read USGS study at: https://doi.org/10.3390/rs13214266

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Public Domain.

Anthony Fischbach, USGS Alaska Science Center

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Evaluation of satellite imagery for monitoring Pacific walruses at a large coastal haulout

Pacific walruses (Odobenus rosmarus divergens) are using coastal haulouts in the Chukchi Sea more often and in larger numbers to rest between foraging bouts in late summer and autumn in recent years, because climate warming has reduced availability of sea ice that historically had provided resting platforms near their preferred benthic feeding grounds. With greater numbers of walruses hauling out
Authors
Anthony S. Fischbach, David C. Douglas
By
Ecosystems Mission Area, Alaska Science Center

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