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Arctic sea ice / Re: The 2020 melting season
« Last post by Aluminium on Today at 11:32:10 AM »
Aggressive WAAs in May/June to reduce albedo, persistent anticyclones in July to input energy, powerful cyclones in August to melt remnants. Is it a perfect melting season? In any case, this year successfully completed 2/3 and the ice looks exhausted.
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Arctic sea ice / Re: The 2020 melting season
« Last post by Freegrass on Today at 11:31:32 AM »
Uniquorn, ITP 104 has dropped in temperature at both 5 and 6 meters after the brief spike up.
The 29 salinity water that came with the cold spike is more saline than any other current surface reading from the other working ITP buoys or microcats. In general the surface water gets fresher as the melt proceeds so jumps in salinity are interesting.
@Freegrass: I agree with Oren: likely a combination of both high insolation in July(bad) then the lows to whip it all up(also bad).
I agree as well, it's only logical. But I'm surprised by the amount of ice that's still left in the CAB.

It's probably a little bit of impatience from my side and getting carried away by those who claim we'll end up in third place. Consider it another brainfart...  :-[
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Arctic sea ice / Re: The 2020 melting season
« Last post by BornFromTheVoid on Today at 11:16:57 AM »
First week of August, 2012 vs 2020
(Higher-res version on twitter: https://twitter.com/Icy_Samuel/status/1292026425348886529)
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The forum / Re: Forum Decorum
« Last post by gerontocrat on Today at 11:11:34 AM »
If you haven't tried it already, you may also be able to salvage the hard drive from the laptop. Pop it out, change the setting from boot disk to slave, and test it as an external drive. The computer shop can test this for you.
Rescue hard disc ?Yep - already planned
 Backup of data and program files? Yep, done on a frequent basis.

External drive ? On shopping list.
Also wireless external key board and if money allows a big external screen BUT

I will NOT spend it all. That would be sheer greed.

Should be at least euro 1,000 left over. Where would such a sum be the most useful?
To help keep ASIF'S finances afloat?
An Arctic expedition?
MSF?
Something to think about in the next few weeks?
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Arctic sea ice / Re: The 2020 melting season
« Last post by Thawing Thunder on Today at 11:08:52 AM »
Again the actual poof event in a slightly higher resolution (I must admit that on the multicolored Bremen graph it looks even more devastating):
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Arctic sea ice / Re: Arctic Ocean salinity, temperature and waves
« Last post by uniquorn on Today at 11:05:58 AM »
nice image from earth observatory of the arctic low from jul28 for reference. Full size image here
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Arctic sea ice / Re: The 2020 melting season
« Last post by uniquorn on Today at 10:46:47 AM »
Uniquorn, ITP 104 has dropped in temperature at both 5 and 6 meters after the brief spike up.
The 29 salinity water that came with the cold spike is more saline than any other current surface reading from the other working ITP buoys or microcats. In general the surface water gets fresher as the melt proceeds so jumps in salinity are interesting.
ftp doesn't seem to be working at whoi at the moment so am unable to get profile data, but I think the buoy is crossing a deeper current that is forced closer to the surface when heading towards mclure.

@Freegrass: I agree with Oren: likely a combination of both high insolation in July(bad) then the lows to whip it all up(also bad).
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Arctic sea ice / Re: The 2020 melting season
« Last post by oren on Today at 10:43:23 AM »
Insolation is much worse overall, especially with histroically low albedo and around the solstice. But storms are worse for thin ice about to melt out, and hasten its visible demise, thus make for good headlines
The CAB didn't show much effect because the ice was still thick, and because new ice was imported to replace the thinner ice that did melt out.
In general the events of the last few weeks prove again why volume and area matter more than extent, which is simply the rearrangement of ice. Back in July the 1 million advantage in extent was worth less than appeared at the time, and now the thin wispy ice spread across large parts of the Chukchi and Beaufort and elsewhere is worth much less than extent would have us believe. Extent really matters only in September, when ice rearrangement can lead to new extent records given the right area data.
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Arctic sea ice / Re: The 2020 melting season
« Last post by Freegrass on Today at 10:26:16 AM »
Weird melt season. Everything is getting hammered but the extent hangs on tenuiously. Weird too because we could end up in 3rd place but the Bremen graph to have very little pink. Yes if theres a storm a lot will go poof. Surely there will be some big drops soon. Does the JAXA lag a day behind the Bremen? Theres a lot more blue on the Bremen than there was yesterday.

I'm having coffee now and waiting until tomorrow
It surely is. I would have thought that the CAB would have melted out a lot more by now with all that insolation we got in July. And that reminds me of the discussion I had with Binntho earlier on in the season. He said to not underestimate the energy that low pressure systems bring to the ice, and I'm starting to think that he was right, that wind and rain and dispersion is a lot worse for the ice than insolation from high pressure systems. (I hope I got that right Binntho). It seems now that my brainfart wasn't all that smelly, that because of the compaction of the ice, that a lot of that insolation was reflected back into space.

When the ice is more dispersed, you have a lot more open water in between the ice that can soak up the heat and melt the ice all over the place.

Thoughts?
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The rest / Re: Pseudoscience and how to debunk it
« Last post by blumenkraft on Today at 10:19:27 AM »
Walrus, what validates the opinion of a think tank writer and invalidates the finding of all those scientific articles presented to you in the other thread?
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