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Uploaded on Tuesday 21 Feb 2012
Riccardo Pravettoni, UNEP/GRID-Arendal
At the regional, ocean basin scale, the area between the insulating sea-ice cover and the open ocean (known as the ice margin) is characterized by particularly strong temperature gradients during winter, favoring the development of low pressure systems along the edge of the ice, as well as smaller, intense features known as polar lows that present hazards to shipping.