Tuesday, April 8th, 2014
Overflow Ice Along Dalton Highway

Overflow Ice Brooks Range Dalton Highway - Photo (c) Laurent Dick - Wild Alaska TravelGorgeous canyons of ice line the Dalton Highway near Atigun Pass in the Brooks Range. These ice formations are the result of overflow pressure heaves that end up exploding with a gush of water.

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Friday, January 13th, 2012
Overflow Ice

Strong enough pressure causes water to break through and overflow a frozen surface. In cold weather, the water breaking through will soon freeze before flowing far. Thus, peculiar glacier-like formations are built up, layer upon layer. These effects are visible in this view of the mouth of the Nome River, with the silhouettes of the fish camps of Fort Davis outside of Nome on the horizon. The Russian tanker and Cost Guard cutter are now within sight of Nome, and although they may not have to deal with overflow conditions, shifting sea ice conditions will make the safe unloading of 1.3 million gallons of fuel a challenge. I keep my fingers crossed for a safe transfer of the fuel from the tanker to the city and a safe return of the tanker and cutter. Check out the Healy webcam images here: http://icefloe.net/Aloftcon_Photos/index.php?album=2012

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