Sentences with phrase «shaped ice grains»
Ice worms: The surface of a glacier contains a willy - nilly assemblage of irregularly shaped ice grains joined together by necks of ice.
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Freshly fallen snow reflects up to 84 percent of incoming sunlight, but during the warm season the reflectivity declines as the ice grains within the snowpack change shape and size.
In one of the troubling feedback loops of the changing climate, dark ice is partially caused by the warmer Arctic summers climate change has brought us: More warmth means less fresh snowfall to cover areas of accumulated sediment, changes to the shape and size of ice grains that make them less reflective, and more liquid near the surface.