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Author Topic: Cracks in MYI  (Read 5055 times)

wallbert

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Cracks in MYI
« on: August 24, 2013, 08:16:41 PM »
Recent satellite Imagery has revealed a network of fissures traversing nearly the entirety of the MYI pack north of the CAA/Greenland. These fissures were not present at the beginning of August.


On second thought, it's difficult to tell exactly when this network of cracks appeared, however, only in the past few days has the scale of this feature become visible.

What are the causes and consequences of this rupturing?

Has this happened before in recent history?

http://earthdata.nasa.gov/labs/worldview/?map=-405248,-607104,-143104,-442240&products=baselayers,MODIS_Terra_CorrectedReflectance_TrueColor~overlays,arctic_coastlines_3413&time=2013-08-23&switch=arctic
« Last Edit: August 24, 2013, 08:24:39 PM by wallbert »

Neven

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Re: Cracks in MYI
« Reply #1 on: August 24, 2013, 09:27:50 PM »
I think it has happened before, wallbert. Have a look through LANCE-MODIS satellite images from previous years (starting in 2009).
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helorime

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Re: Cracks in MYI
« Reply #2 on: August 25, 2013, 03:20:49 AM »
Any sufficiently advanced technology is indistinguishable from magic.

Jim Hunt

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Re: Cracks in MYI
« Reply #3 on: August 25, 2013, 10:06:01 AM »
Take a look at last year

I see what your link says, but when I clicked it I ended up looking at 2013 again! Here's Worldview's version of August 23rd 2012, which looks rather different.
Reality is merely an illusion, albeit a very persistent one - Albert Einstein

anonymous

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Re: Cracks in MYI
« Reply #4 on: August 25, 2013, 11:13:15 AM »
Take a look at last year http://www.arctic.io/observations/8/2012-08-23/7-N89-E0
The split-zoom is much more convenient  2 compare 2 points in time, try this: arctic.io/split-zoom/2012-08-23;2013-08-20/

Neven

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Re: Cracks in MYI
« Reply #5 on: August 25, 2013, 12:20:06 PM »
Last year actually looked worse. These big cracks only mean one thing: it's freezing out there. If it weren't cold, you'd get slush instead of large, long cracks.
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Shared Humanity

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Re: Cracks in MYI
« Reply #6 on: August 25, 2013, 05:56:08 PM »
Take a look at last year http://www.arctic.io/observations/8/2012-08-23/7-N89-E0
The split-zoom is much more convenient  2 compare 2 points in time, try this: arctic.io/split-zoom/2012-08-23;2013-08-20/

It sure looks to me as if there is more cracking this year or is cloud cover on the 2012 image obscuring the cracks?

LarsBoelen

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Re: Cracks in MYI
« Reply #7 on: August 26, 2013, 09:05:04 PM »
I used Eosdis pictures from the 14th till yesterday for this movie:


(click link to see youtube movie on iPad)
« Last Edit: August 26, 2013, 09:14:52 PM by LarsBoelen »

Laurent

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Re: Cracks in MYI
« Reply #8 on: August 26, 2013, 09:20:18 PM »
Why it seems stuck at 2/3 ? Did you do something or this is what happened !?

LarsBoelen

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Re: Cracks in MYI
« Reply #9 on: August 26, 2013, 09:56:26 PM »
Laurant,

I stick a still image at the end of these movies so you can look at  the last image  Youtube has a habbit of showing simikar movies as soon as thee movie ends, this gives you some time.
You can als see the date at the bottom of the movie

Lars