Bering ice: no floe flow.
The 86-kilometer-wide Bering Strait Bering Strait, c.55 mi (90 km) wide, between extreme NE Asia and extreme NW North America, connecting the Arctic Ocean and the Bering Sea. It is usually completely frozen over from October to June. The Diomede Islands are in the strait. , between Alaska's Seward Peninsula Seward Peninsula, W Alaska, projecting c.200 mi (320 km) into the Bering Sea between Norton Sound and Kotzebue Sound, just below the Arctic Circle. The region is mostly bleak tundra, with long, cold winters. and Siberia's Chukchi Peninsula, is normally a watery highway for the ice flowing north and south with the winds and currents. Satellite imagery shows that single arches of ice form across the strait many times during the winter season, but they are quickly destroyed by moving ice. However, smaller double arches that block the southward flow of ice were first seen on satellite photos from March 1979 (6eft). Review of satellite data, reported in the October GEOPHYSICAL RESEARCH LETTERS Geophysical Research Letters is a publication of the American Geophysical Union. GRL is the organization's only letters journal. Since its introduction in 1974, GRL has published only short research letters, typically 3-5 pages long, which focus on a specific discipline or , found only seven episodes of double-arching during the past 11 years, each lasting from three to 27 days. The arches, with a common footing on the Diomede Islands in the center of the strait, apparently fail only when ice flux switches northward. SCientists postulate postulate: see axiom. that the blockage, which occurs only between February and May, may modulate whale migration in the area.
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