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Sea surface temperatures from satellite imagery during Aug. 12-18, 2004, shows a plume of warm Bering Sea water extending into the area where scientists saw unaccompanied walrus calves. Black tones denote either land or sea surface areas where cloud cover or sea ice interfered with remote measurement. White squares show locations of walrus calf sightings and red squares indicate other stations occupied during the research cruise. The open red box northeast of Wainwright indicates locations where groups of adult walruses, some with calves, were observed during the cruise. Bathymetric contours are shown as white lines. Numbers of lone calves sighted at each location are listed next to each white box. Stations in open black box east of Barrow are a transect line that is shown as a vertical cross section in the figure below. (Cooper et al, Aquatic Mammals)[back]
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