SIMON FRASER / SCIENCE PHOTO LIBRARY SIMON FRASER / SCIENCE PHOTO LIBRARY
Ice floes. Ice floes near the coast of East Greenland, about 70 degrees North latitude. These floes originated in the Arctic ice sheet. The sheet reaches its maximum size in winter. As the spring thaw progresses, the periphery of the ice sheet breaks up, and the resulting floes drift southward. Although the dynamics of ice movement are not fully understood, it is known that the floes move under the influence of winds, unlike icebergs which move with ocean currents.
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