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Author Topic: The Nares Strait thread  (Read 462591 times)

b_lumenkraft

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Re: The Nares Strait thread
« Reply #1400 on: February 04, 2019, 10:09:10 AM »
"Big chunk" bounced back again today while ice in Hall Basin keeps flowing.

I have the impression it's bouncing against the rock there - for the second time now.

uniquorn

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Re: The Nares Strait thread
« Reply #1401 on: February 04, 2019, 02:32:38 PM »
Probably not bouncing as all the 'loose' ice in the Lincoln sea moves north from feb3 to feb4.
Interesting that the fast ice in the strait is disturbed in two places near to large slow moving floes.

edit: Perhaps being affected by weather further north (second image) and west, though it is too cloudy to see much.

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« Last Edit: February 04, 2019, 10:03:34 PM by uniquorn »

b_lumenkraft

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Re: The Nares Strait thread
« Reply #1402 on: February 06, 2019, 05:37:39 AM »
Big chunk stuck! No movement since yesterday.

Data: Brightness Temperature (Band 31-Night) Terra / MODIS
Left hand: 06.02. right hand: 05.02

Niall Dollard

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Re: The Nares Strait thread
« Reply #1403 on: February 06, 2019, 10:32:49 AM »
And motion downstream in the Kane Basin was very slow yesterday. We may not be far now from full blockage.

uniquorn

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Re: The Nares Strait thread
« Reply #1404 on: February 06, 2019, 01:56:46 PM »
A second opinion from worldview,viirs,bt15,night, feb5-6. Probably some serious grinding. Are there any sound recordings from the Nares Strait?
Close up courtesy of polarview, feb5

b_lumenkraft

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Re: The Nares Strait thread
« Reply #1405 on: February 06, 2019, 02:07:51 PM »
Haha, sound recordings!  ;D

I would love to see that in real...

Though one standing on the cliff looking down the strait there wouldn't necessarily see the fractures the satellites are able to see i guess.

b_lumenkraft

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Re: The Nares Strait thread
« Reply #1406 on: February 06, 2019, 02:14:52 PM »
Could be Terra / MODIS flew over the place late 05.02 and early 06.02. so that both shots are close together whereas the shots of the other satellites have a longer time span between two shots. A bummer the shots are not timestamped.

gerontocrat

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Re: The Nares Strait thread
« Reply #1407 on: February 06, 2019, 03:46:56 PM »
A second opinion from worldview,viirs,bt15,night, feb5-6. Probably some serious grinding. Are there any sound recordings from the Nares Strait?
Close up courtesy of polarview, feb5
On the one hand the perfect shape from image 1 to get stuck as the strait narrows,
and on the other hand from image 2- close up looks like it will fall apart when it does get squashed in the narrows.

So I am going for disintegration by the weekend.
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Tor Bejnar

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Re: The Nares Strait thread
« Reply #1408 on: February 06, 2019, 04:53:22 PM »
I second that opinion, gerontocrat.  My observation, over several years, is that arches form because south winds stop the flow of ice, not because large floes get stuck.  With generally thinner floes today than in previous decades, I suspect this to be more true today than yesteryear.
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Niall Dollard

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Re: The Nares Strait thread
« Reply #1409 on: February 06, 2019, 09:02:07 PM »
Here we go Tor.

By next Saturday most models are forecasting southerlies in the Nares.

b_lumenkraft

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Re: The Nares Strait thread
« Reply #1410 on: February 07, 2019, 04:22:47 PM »
Big Chunk broke in two pieces and is now in hight of Petermann.

Goodbye Big Chunk. Was a hell of a ride with you.  ;D

be cause

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Re: The Nares Strait thread
« Reply #1411 on: February 08, 2019, 09:24:00 PM »
It's 4 years today since I wrote that this was quietly becoming one of the most interesting threads on the planet. It wasn't long before I saw Neven using the same words in his blog . This year is interesting again .. the cold is not stopping things in Nares .. the last 2 days suggest it will be hard to do so .. of course .. having said this , it could well freeze over tomorrow :) .. b.c.
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uniquorn

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Re: The Nares Strait thread
« Reply #1412 on: February 09, 2019, 09:11:38 PM »
2chunks are up for the ride, everyone else hesitating at the entrance.
worldview feb8-9

uniquorn

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Re: The Nares Strait thread
« Reply #1413 on: February 13, 2019, 07:35:12 PM »
Looking back using uni-bremen smos to see how it showed the flow from Nares into Baffin, may2010-feb2019

Niall Dollard

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Re: The Nares Strait thread
« Reply #1414 on: February 14, 2019, 10:48:31 PM »
Very little movement in past 24 hours in the Kennedy Channel.

Tor Bejnar

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Re: The Nares Strait thread
« Reply #1415 on: February 15, 2019, 04:11:30 AM »
It is interesting to me to see the narrow stream on the west side of the Kennedy Channel moving right along.  I don't recall seeing anything like this in past years.  Will it get blocked or slow to a halt or reinvigorate the whole channel?  We will probably know in a few days, as on Sunday [and again in a week](per Windy.com), the winds that are currently out of the north will become confused or out of the south.
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Tor Bejnar

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Re: The Nares Strait thread
« Reply #1416 on: February 15, 2019, 07:40:33 PM »
Well, the gods choose reinvigorated movement: DMI Satellite Images yesterday and today.
I've marked three floes and added a couple of lat-longs to help with location.  (Yes, the left image is wider; the right image shows the current satellite pass with 'no data' being black.)  What was above 82ºN is now below 82ºN; what was above 81.5ºN is now at 81.5ºN; etc.
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Tor Bejnar

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Re: The Nares Strait thread
« Reply #1417 on: February 18, 2019, 04:59:58 PM »
Uniquorn has a movie in "The 2018/2019 freezing season" thread showing the short-lived stall of "Big Chunk Block" in Kennedy Channel

[Edit: chunk, block: gotta get those terms right, now.  Note that B.C. is hitting Hans Island and will be further broken the next time we see it.  I recall now: that "Big Block" was in the Beaufort, a very resilient piece of ice, until it melted.]
« Last Edit: February 18, 2019, 05:59:03 PM by Tor Bejnar »
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b_lumenkraft

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Re: The Nares Strait thread
« Reply #1418 on: February 18, 2019, 05:06:38 PM »
Chunk, Tor,

big chunk! ;)

Thank you for making the link here. And thanks, Uniquorn for the blockbuster.

uniquorn

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Re: The Nares Strait thread
« Reply #1419 on: February 18, 2019, 11:03:20 PM »
I'm not sure we'll see the like of Big Block again. Rumour has it there's a breakaway called 2Chunks.