Sunday, October 21, 2018

2018 sea ice refreeze is identical to melting to minima in reverse slow motion

~Today's 2018 JAXA extent is #1 lowest within historical record
~Since minima refreeze pattern almost exact melting in reverse
~There is no doubt that fresh less dense surface melt water is necessary for more rapid refreeze

 JAXA 13 to 19 October extent map closely resembles the melt process flipped backwards,  Fram Strait is overwhelmed with easy flowing sea ice from the trans polar current reformed and re-ignited  along with the  Central Arctic Basin  gyre.    Even with Fram surface waters really warm the ice cover gets renewed daily,  in short a more normal ice dumping scene with much warmer water:

Elsewhere  October 21 CMC SST's are still quite warm,  it takes -1.8 C water for sea water to freeze.  Despite greater darkness 0 C waters North of East Siberian sea is astounding,  the Atlantic front ice border remains stable and Bering Chukchi seas super warmed waters guaranty a further slower refreeze,  which makes this map interesting:


   A JAXA back to the future moment,  but we are currently 29 days away from minima,  as opposed
to this 19 days remove sep 3 JAXA eerily similar map to today absent Fram Strait.  The CAB is not refreezing well largely because of great cloud coverage and very warm sst's,  which gives a surface temperature feedback loop of warming.  These two factors made 2018 overall #1 lowest extent especially along with very thinned central CAB sea ice, made perfectly obvious by the presence of nearly permanent Arctic Ocean overcast with clouds and the lack of an anticyclone over the North Pole,  which always happened in the past at the start of the long Arctic night.  The biggest news is for larger populations further South,  an abnormal winter awaits them. 

CMC October 24,  sign of compaction in North Pole to Greenland sector, with finally a High pressure,  an extension first  originating from the Canadian Archipelago South.  A very unusual,  unique,  very loose pack North Greenland sea ice was present throughout end of melting season.  Now we can attest,  this anomaly has largely frozen over.   A North Pole High following Minima usually means the start of winter,   about 3 weeks late. 

WD October 21,  last GIF October 24, 2018

Tuesday, October 9, 2018

Fram Strait sea ice melting Van Gogh style

~Long without action Fram strait appears to melt incoming sea ice rapidly
direct contact with +2 C water ,  cooled a bit from a summer of continuous warming.

Sea water right into the melt zone by any standards extremely warm,  therefore giving images like this: 

We have a look at apparently rapid melting,  at least for this time of the year,  with equally fast Southwards flowing sea ice as seen October 4 ,  the goodbye waves here are definitely artistic and
different than slow melting type as reported with previous article.  Warm surface sea water +2 C awaits any arrivals.  wd October 9, 2018

Thursday, October 4, 2018

Slow melting Goodbye Waves examples

~ 78 N 176 W very slow melting made obvious by individual Goodbye Waves readily identifiable day by day.

~   The waves in this case seem to stream over fresh melted less saline colder sea water.

    This JAXA portion of melt area is very interesting,   JAXA October 4 and 5 has more sea ice than NASA captures,  that is not new,  but here we see the likelihood that Goodbye Waves are melting over less saline recently melted  sea water,  not really warmed by significant sunlight.

   There is melting,  but not so fast , October 1 to 5 NASA EOSDIS,  we look especially at left waves
breaking down slowly.  We also see a day by day variation in the main pack compacting a little but really moving,   still individual waves are recognizable,  a large contrast to not so long ago melting when the waves disappeared or were impossible to identify from one day to next.   WDOctober 5 2018

Powerful Arctic Ocean heat feeds the dipole engine

~The great minimum stall of 2018 highlights


Not seeming warm +3 C sst near New Siberian Islands has some localized impact .  Remember local average temperatures for the 2 guys living on Kotelny (the largest) Island is -11 C in October. No doubt the once much warmed East Siberian sea is still giving off some heat.  


   We look at New Siberian Island Novaya Sibir to the upper right on September 27 covered with snow,  nothing unusual,  however lost most of its new snow on October 2.   To the left is pack ice moving towards this Island:


   October 2's,  2007 to 2018 , since 2007 Novaya Sibir Island was always covered with snow onwards....


   Oct 4 2007,  a clearer view,  to date,  Oct 4 2018 same Island is snowless.  


            Meanwhile since Minimum date,  North Atlantic Front is nearing 85 North.  JAXA September 23 October 3 2018.