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The Arctic Ice Death Spiral!

May 17, 2015
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By Paul Homewood 

 

 

Visual image of the rapidly disappearing Arctic ice!

 

 

N_200604_extn

 

N_201504_extn

http://nsidc.org/cgi-bin/bist/bist.pl?annot=1&legend=1&scale=50&tab_cols=2&tab_rows=2&config=seaice_index&submit=Refresh&mo0=04&hemis0=N&img0=extn&mo1=01&hemis1=N&img1=conc&year0=2015&year1=2006

 

 

Note that extent last month was just the same as it was in April 2006.

 

 

 

Meanwhile, volume is back to 2006 levels

 

BPIOMASIceVolumeAnomalyCurrentV2.1

http://psc.apl.uw.edu/wordpress/wp-content/uploads/schweiger/ice_volume/BPIOMASIceVolumeAnomalyCurrentV2.1.png

 

And thickness for most of this year is at its highest since 2006.

 

Bpiomas_plot_daily_heff.2sst

http://psc.apl.uw.edu/wordpress/wp-content/uploads/schweiger/ice_volume/Bpiomas_plot_daily_heff.2sst.png

10 Comments
  1. May 17, 2015 7:28 pm

    Despite a lower max this year is keeping pace with 2014, according to MASIE.

    https://rclutz.wordpress.com/2015/05/12/arctic-ice-watch-2015-2/

  2. rah permalink
    May 17, 2015 10:02 pm

    Thanks! A timely post for me that came during an argument with a Death Spiral moron that claimed the Arctic is losing ice “10 times faster than the Antarctic is gaining it”. I had proven my point on extent using Cryosphere today comparative images and Sunshine hours graphs but of course after that he claimed that volume was declining.

    It really is both amusing and disturbing that so many people believe that kind of crap when such sites as these citing credible scientific sources exist.

    So thanks again!

  3. May 17, 2015 11:10 pm

    Thanks, Paul.
    Arctic Sea Ice extension measurements started in 1953, and have been decreasing since peaking in 1970 to December 2012. Satellite measurements started in 1979.
    See SOTC: Sea Ice (National Snow and Ice Data Center – NSIDC),
    at https://nsidc.org/cryosphere/sotc/sea_ice.html
    It has been on recovery mode since 2012, but the NSIDC hasn’t noticed yet.

  4. May 17, 2015 11:22 pm

    Of course, as entertaining as it is to follow the twists and turns of Arctic ice extent, we should not forget the extent is a function of water, wind and cloud, not CO2 or air temperature.

    https://rclutz.wordpress.com/2015/03/29/arctic-sea-ice-factors/

    • May 18, 2015 2:44 am

      Yes, of course. In my climate pages I show:
      In the winter the Arctic sea ice more than doubles in size. Arctic sea ice extent is directly dependent on winds and currents, not just on temperatures.

      • rah permalink
        May 18, 2015 10:16 pm

        Yep in many ways the Arctic is more dynamic than the Antarctic. Sea ice extent can change very quickly.

      • AndyG55 permalink
        May 19, 2015 9:11 pm

        The Arctic is also land boundary restricted.

        There are only a couple of sectors where it can increase above a certain maximum of sea ice.

        Unlike the Antarctic, which is free to expand and expand… like it seems to be wanting to do.

  5. Brian H permalink
    May 19, 2015 4:56 pm

    Um, so what? The planet, polie bars, and we would do just fine without any sea ice. The peaks of civilization and biosphere have always occurred in warm periods. Disaster or even harm predicted by warmists is bogus. The current greening of the planet is just the first indicator. We may hope it’s not truncated by the end of the interglacial. We wouldn’t enjoy that, at all.

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