(in demonstration phase)

Climate Summary for October 2017-March 2018

This is the main outcome from the October 2017- March 2018 Arctic Winter Seasonal Review. For more details, view the full climate summary presentation.

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November 2017 to January 2018 Seasonal Temperature Departures.

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February to April 2018 Seasonal Temperature Departures. The average surface temperature for the whole period from November 2017 to April 2018 was third highest since 1949.


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October 2017-March 2018 Seasonal Precipitation. The precipitation was slightly above the 1950-2010 average.


Maximum Ice Extent (how much of the Arctic is covered in sea-ice) is recorded every March using satellites and compared to all previous years since 1979. March 2017 ice extent was 14.48 million km², second lowest on record. The mean extent for October-April was second lowest on record, and for January-April the lowest on record.
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Blended Arctic ice chart (AARI, CIS, NIC) for 23-26 April 2018 and ice edge occurrence for 21-25 April for 1979-2012.

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Fast ice thickness in general 20-50 cm lower than normal though ice thickness at North Pole was close to potential 180-190 cm.