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Arctic Sea Ice Trend May Have Turned The Corner As Ice Volume Picks Up Over Past 5 Years


The Danish Meteorological Institute (DMI) here shows currently Arctic sea ice is at its highest level in years for this time of the year. Hat-tip: Kirye at Twitter.

Sea ice extent in recent years (in million km2) for the northern hemisphere, as a function of date.

In fact it appears it has reached its highest level ever over the last decade, and its only mid February. The DMI ice extent values are calculated from the data from the Ocean and Sea Ice, Satellite Application Facility (OSISAF), where areas with ice concentration higher than 30% are classified as ice, the site reports.

On the other hand, the US National Snow and Ice Data Center (NSIDC) here reports that January, 2016, saw the lowest Arctic sea ice extent (15%) on the satellite record. Other sources depicting 15% sea ice concentration extent also show similar low values.

The overall trend, however, shows nothing alarming. The following chart from the Cryosphere Today of the Arctic Climate Research at the University of Illinois shows Arctic sea ice remaining flat over the past decade.

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