Sentences with phrase «multiyear ice edge»
Prediction is based on evaluation of ice age that shows current ice extent has retreated back to the multiyear ice edge in the eastern Arctic and in the Beaufort and Chukchi seas.
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Since seasonal ice is thinner than multiyear ice (i.e., ice that has survived at least one melt season) and vulnerable to melting completely, there was a possibility that the ice edge could recede beyond the pole and leaving the pole completely ice - free.