Arctic Ice Rebuilding

The media and warmists ignore Arctic ice in wintertime because they are obsessed with the summer melt, and hoping for lots of open water.  In fact, ice extent trends are basically driven by the freezing this time of year, while Sept. extents vary greatly due to summer weather events, not climate change.

The press has been reporting some storm activity in the North Atlantic, and tossing words like “unprecedented” into the stories.  But keeping things in perspective, we can say that the freezing is going normally with the usual day to day fluctuations.

January and February show an average year in progress:

masie 2016 jan and feb to 39



Do not trust mass media for unbiased reporting of climate news.

Some people don’t like the unalarming patterns of ice extents displayed by MASIE, and hang onto obsolete comments about times in the past when ice charts were inconsistent.  Today’s MASIE dataset is accurate and reliable, according to NSIDC who expressed confidence when releasing it in 2015.

About MASIE produced by NIC (from NSIDC)

The NSIDC Sea Ice Index ice extent is widely used, but the edge position can be off by 10s or in some cases 100s of kilometers. NIC produces a better ice edge product, but it does not reach the same audience as the Sea Ice Index.

In June 2014, we decided to make the MASIE product available back to 2006. This was done in response to user requests, and because the IMS product output, upon which MASIE is based, appeared to be reasonably consistent.
Note:  Presently, NSIDC Sea Ice Index is showing ~700,000 km2 less ice extent than MASIE.


  1. justanotherpersonii · February 10, 2016

    Didn’t January set a new record for the lowest recorded ice amount on record from NSDIC?


    • Ron Clutz · February 10, 2016

      See Note above. NSIDC is underestimating ice extent by ~700,000 km2.


      • justanotherpersonii · February 10, 2016

        Ahh, I see. Thank you for pointing that out.


  2. Pethefin · February 11, 2016

    The DMI sea-ice extent 30 % coverage data seems to confirm this recovery:

    The sea-ice is currently just about to hit the at least 10 year high maximum, a month earlier than the previous record from 2010. The situation seems to have become very inconvenient for the DMI as they have removed all links to this data from their webpage in beginning of 2016, although the keep updating the data.


    • Pethefin · February 19, 2016

      The graph above does not work anymore since the DMI got rid of it. Look here for the archieved version:


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