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Messages - iceman

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Arctic sea ice / Re: The 2019 melting season
« on: August 20, 2019, 01:31:39 PM »
update on caa/cab crack, unihamburg amsr2-uhh, may1-aug18

Another good illustration of this year's tradeoff between volume and extent. Development of the crack has allowed more MYI to drift into Beaufort. But it's not the classic "protective arm" of years past, only a withered stump.

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Arctic sea ice / Re: The 2019 melting season
« on: August 14, 2019, 11:26:20 AM »
Ascat with NSIDC ice age overlaid at 20% transparent, mar21-aug12.
Thanks for your great animations, Uniquorn. Really interesting to see this one and it shows that some of the outlying ice has a multi-year component.
If anyone should study just one animation this season, let it be this one by uniquorn.
   ....

Yes, quite illuminating. Among many other things, it shows that the replenishment of Beaufort from the CAB, which looks good on area/extent maps, is bad for volume - and for the longevity of the main pack.

3
Arctic sea ice / Re: The 2019 melting season
« on: July 26, 2019, 11:06:02 AM »
Hot damn! HOT DAMN! Friv, where are you? We need your writer's talents, sir. Seems this one is quite a fitting occasion...

Friv emptied out his hyperbole bin with his latest post.

4
Arctic sea ice / Re: 2019 sea ice area and extent data
« on: June 26, 2019, 11:32:46 AM »
UH AMSR2 data is showing more high latitude sea ice extent and area in the arctic basin, than the highest melt years.


a reminder of this astute point that Oren made in the melting season thread:

CAB area at this time of year is a proxy for the area north of the Barents and the Fram, as the rest of the CAB is still mostly 100% sea ice until the beginning of July. As this year the transpolar drift is back with a vengeance, it is no surprise that CAB area is staying on the high side. As the Chukchi + Beaufort deteriorate, it is expected that the CAB will be hit first by loss of ice from its Pacific side.


5
Arctic sea ice / Re: The 2019 melting season
« on: May 26, 2019, 03:52:32 PM »
Removed a couple of comments. If it's difficult to quit, I can help with that. Next step is moderation/ban.

Thank you for pollution remediation.

6
Arctic sea ice / Re: The 2019 melting season
« on: April 20, 2019, 04:34:37 PM »
.... At this moment in time in 2019 there is in excess of 500,000 km2 of the Arctic that is open water compared with the 2010's average. That's about 12 days ahead of the 2010's average.
....

And the missing ice is disproportionately at lower latitudes: more exposed to insolation a month or two before the solstice. Big question is how much of the excess heat absorbed by open water in the Bering finds its way into the main Arctic basin.

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