Sharply increased mass loss from glaciers and ice caps in the Canadian Arctic Archipelago.

加拿大北极群岛一般少有新的冰川形成，并且每年的降雪量差不多。 但冰雪融化量却大不相同，所以冰量的变化主要由夏季融化量决定。

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In fact, the Canadian Arctic Archipelago acts as a "drain trap" for ship-wrecking multiyear ice, Howell says.

郝伟说，事实上，加拿大北极群岛起到了将能够毁坏船只的多年冰引入西北通道的作用。

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The Canadian Arctic Archipelago generally receives little precipitation, and the amount of snowfall changes little from year to year.

加拿大北极群岛常年几乎没有降水，降雪量微乎其微。

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The glaciers of the Canadian Arctic Archipelago will undergo a dramatic retreat this century if warming projections hold true.

BBC: Canadian glaciers face 'big losses'

The Canadian Arctic Archipelago is a vast area, comprising some 36, 000 islands.

BBC: Canadian glaciers face 'big losses'

The reconstructed Antarctic map is more complete than the corresponding map for the Arctic where the team had to contend with more gaps in the Nimbus coverage, including around the Canadian Archipelago and north of Alaska.

BBC: Earliest satellite maps of Antarctic and Arctic sea-ice