Antarctic sea ice retreats due to wind patterns

Posted: December 15, 2016 by oldbrew in Natural Variation, sea ice
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Funny how decades of increasing seasonal sea ice in the Antarctic were ignored or somehow explained away, but a glimmer of a retreat and it’s banner headlines everywhere. Confirmation bias?

Let’s see whether we get a multi-year trend along the same lines in this region. If not it will look like a one-off weather pattern, as seems very possible.

NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

http://nsidc.org/data/seaice_index/

While Arctic ice extent has been at low levels lately, coincidentally, strange things have been going on down under.

Bucking the trend of recent years when Antarctic sea ice extent has been steadily rising, it has dropped away in the last few months.

Naturally this has led to the alarmists having a field day. I have, however, used the word “coincidentally” deliberately, as there is no evidence whatsoever that the Arctic and Antarctic events are connected. Or that the latter has anything to do with global warming.

So what has been happening in the Antarctic? NSIDC offer a clue in their October edition of Arctic Sea Ice News, after it reached winter maximum on a record early date:

View original post 451 more words

Comments
  1. oldbrew says:

    Only two years ago: ‘Antarctic Sea Ice Reaches New Record Maximum’

    http://www.nasa.gov/content/goddard/antarctic-sea-ice-reaches-new-record-maximum

    Possibly an El Niño effect in 2016? The SO in ENSO means Southern Oscillation.

    http://oceanservice.noaa.gov/facts/ninonina.html

    ‘NOAA’s National Snow and Ice Data Center linked the recent El Niño with a slowdown in Antarctic sea ice growth last October. Warm Pacific Ocean water spreading southward weakens winds that normally blow sea ice outward from Antarctica’

    http://summitcountyvoice.com/2016/06/22/emerging-la-nina-likely-to-end-streak-of-record-warm-years/

  2. A C Osborn says:

    It struck me when BOTH NH & SH polar sea ice started to diverge from the historic path at the SAME TIME that the most likely explanation was actually Satellite sensor problems.
    Historically the 2 poles have reacted in opposition directions.
    Nobody else gives this any credence because of the El Nino, but I am really surprised that it would affect the Antarctic, seeing as how the last big one didn’t.

  3. oldbrew says:

    As Paul Homewood pointed out, the NSIDC said:
    ‘The early maximum appears to be the result of an intense wind pattern in September’

    AFAIK nobody has evidence of this being a man-made wind pattern :/

  4. oldbrew says:

    Commenter Gabriel at ‘Notalot’ says:

    ‘Both Northern and South Poles are currently experiencing a huge growing on bombardment of cosmic rays and particles due to signficant decrease in the solar magnetic field as the Sun approaches its next grand minimum (F10.7 flux has decreased to very low levels for a very long period now). This has brought the southern polar vortex to weaken as it has happened in the northern one either thus making jet streams reach mid-latitudes. The consequence is a retreat in the sea ice around the poles coupled with much colder temperatures for subtropical zones.[bold added]

    https://notalotofpeopleknowthat.wordpress.com/2016/12/14/antarctic-sea-ice-retreats-due-to-wind-patterns/#comment-82431

  5. oldbrew says:

    Thanks ACO. I tracked this down from the link:

    Spolaor et al., 2016 [press release] (Arctic Ocean, Region)

    “Researchers have found that 8000 years ago the Arctic climate was 2 to 3 degrees warmer than now, and that there was also less summertime Arctic sea ice than today.”

    – From this: Tracking the amount of sea ice from the Greenland ice sheet
    http://www.sciencedaily.com/releases/2016/09/160928083222.htm

    Not the Antarctic, but still of interest.

  6. tchannon says:

    oldbrew “AFAIK nobody has evidence of this being a man-made wind pattern 🙂 ”

    I do.

    A windmill flaps its wings in Yorkshire, a hurricane is caused in Antarctica. See, cause and effect.

  7. oldbrew says:

    tc: What made the windmill flap its…er…wings?

  8. tchannon says:

    No idea. Seemed to do it with gusto.

  9. Poly says:

    mmmmm,
    I think Ren on the “Revolutions” thread and Gabriel from Notalot as highlighted by Oldbrew may be on to something significant for the S.Hemisphere. Perhaps this deserves a post or more comments.
    To quote Gabriel;
    “Both Northern and South Poles are currently experiencing a huge growing on bombardment of cosmic rays and particles due to signficant decrease in the solar magnetic field as the Sun approaches its next grand minimum (F10.7 flux has decreased to very low levels for a very long period now). This has brought the southern polar vortex to weaken as it has happened in the northern one either thus making jet streams reach mid-lattitudes. The consequence is a retreat in the sea ice around the poles coupled with much colder temperatures for subtropical zones. In the Southern Hemisphere, South America, Africa, Australia and New Zealand were hit by the meteorological winter starting by the end of April and expanding till October”.

  10. Richard111 says:

    Did the wind make the ice retreat or did the ice pile up in lumps that will take longer to melt during the next warm period?

  11. oldbrew says:

    @ Poly
    Commenter Caleb seems to be thinking along the same lines here…

    “Warmer Pole makes colder subtropics.”
    http://realclimatescience.com/2016/12/as-predicted-the-next-global-warming-scam-has-arrived/#comment-31543

  12. craigm350 says:

    @Oldbrew

    AFAIK nobody has evidence of this being a man-made wind pattern

    Anecdotal of course, but I have noticed a significant increase in ‘man made wind’ of late. The Trump Effect?’😂 😉

  13. oldbrew says:

    Man could be next…

    California regulates cow farts
    http://nypost.com/2016/09/21/it-will-soon-be-illegal-for-cows-to-fart-in-california/

    Once you’re captured by man-made climate syndrome there’s no limit to your bonkerousness it seems 😎

  14. mngalt says:

    Can someone please explain why both the northern and southern hemisphere’s ice extent graphs (above is the link for the antarctic one) look so odd. It looks to me like an instrument failure but I am ignorant so that might not be the explanation.

  15. oldmanK says:

    oldbrew said “Man could be next…——California regulates cow farts”.

    That did it. Had in mind planting artichokes coming season. —What next! Isn’t there anything sacred?

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