April 6, 1912: Sea ice off Cape Denison in Adelie Land

–from Douglas Mawson’s account “The Home of the Blizzard”–

“Whenever a temporary calm intervened, a skin of ice quickly appeared over the whole surface of the water.  In the early stages this formation consisted of loose, blade-like crystals, previously floating below the surface and rising by their own buoyancy.  At the surface, if undisturbed, they soon became cemented together.  For example, during a calm interval on April 6, within the interval of an hour, an even crust, one inch thick, covered the sea.  But the wind returned before the ice was sufficiently strong to resist it, and it all broke up and drifted away to the north.”


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