Compare Daily Sea Ice For Yourself based on Satellite Data

http://arctic.atmos.uiuc.edu/cryosphere/ ^ | Dec 16, 2009 | Cryosphere Today

[Maelstorm]

Daily Arctic Sea Ice Maps

[Maelstorm]

This is for those who would like to compare sea ice cover in the arctic going back to 1979. What is interesting is that there is nearly no difference at all. The more recent images seem to show a more ice though I'm not an expert.

[steelyourfaith]

Excellent !

 

Beam me to Planet Gore !

[sinanju]

“Snow cover data is displayed only for most recent dates”

_____________________________________________________________________________________________________________________________

Almost gave me a heart attack for a moment there. What!? No snow in the arctic on 12/30/1979?!?

[sinanju]

Note to self: Need to hire more Eskimos to claim there’s no ice and their village is being washed away.

[urroner]

If you look at this page, it seems that the amount of ice in the Arctic Basin is increasing.

http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/recent365.anom.region.1.html

[caveat emptor]

Depends on your choices of dates to compare. I've gotten some which show much greater difference than those which you show, though none showing as much difference as Algore claims.

The problem is I haven't been able to display them, when posting them side by side, on a small scale like yours - they end up being huge , and you can't see a side-by-side comparison. I'm using Seamonkey, I think a current version.

[bmwcyle]

Thanks!

ping

[dr_lew]

You can see there are two ice free areas in 2008 which were covered in 1979. The Sea of Okhotsk, at top right, and the Barents Sea along the western coast of Novaya Zemlya, below center right. More importantly, the winter coverage doesn't show the difference that the summer minimum does, and this is where the biggest change has occurred. Here's a comparison with the same tool for 9/15/1979 and 9/15/2008:

[phredo53]

Another look at it year-to-year
http://nsidc.org/images/arcticseaicenews/20091005_Figure6.mov
Based on this, the ice cap has decreased since '79 but has grown from its low of '07.

[faucetman]

You might want to start with this page.
http://arctic.atmos.uiuc.edu/cryosphere/

To really see what is been going on you have to study this awhile. Start with the graphs. Just comparing the same exact date from 2 different years may not show you a true comparison. First WHICH years are you going to compare? Global warming guys want to use 2007 one of the lowest ice years. Some years you actually would want to compare a Nov with a Dec for example to get an accurate comparison, not Nov to Nov. Spring early one year, late another.

I find it particularly convenient that data for much of 2009 has been removed. Hmmmmm. Why don't I trust this STORY?

[Williams]

I heard a climatologist explaining this varies, goes through cycles, etc. He mentioned years prior to 1979 when a US nuclear sub was able to surface at the North Pole, another in which a ship sailed quite far North without an ice breaker.

[Aussiebabe]

Here’s a good site for this decade’s ice in Arctic:

http://www.ijis.iarc.uaf.edu/en/home/seaice_extent.htm

[Aussiebabe]

Here’s a good site for this decade’s ice in Arctic:

http://www.ijis.iarc.uaf.edu/en/home/seaice_extent.htm

[RockyMtnMan]

So how do we know it’s not related to the Earth’s wobble? Antarctic sea ice is growing and the North pole has shifted already.

[SunkenCiv]

China sees no chance of Copenhagen accord: source
Reuters on Yahoo | 12/16/09 | Reuters
Posted on 12/16/2009 7:18:52 PM PST by NormsRevenge
http://www.freerepublic.com/focus/news/2409284/posts

[Albertafriend]

Here are pictures that were posted on Watts Up With That of subs surfacing at the North Pole:

http://wattsupwiththat.com/2009/04/26/ice-at-the-north-pole-in-1958-not-so-thick/

[Rebelbase]

That is a better comparison than the September/December image at the top of the thread.

Based on your comparison there was significantly more ice on the same date 30 years ago.

[Rebelbase]

Oops, I was looking a #8 for the sept-dec. comparision, not the top of the thread.

[Rebelbase]

Nevermind, I screwed up that one too. I’m tired and babbling.

[az_gila]

I heard a climatologist explaining this varies, goes through cycles, etc. He mentioned years prior to 1979 when a US nuclear sub was able to surface at the North Pole, another in which a ship sailed quite far North without an ice breaker

---

...and folks forget that the first NW passage traverse was made in 1903/1905 in a small wooden sailing vessel.

No icebreakers involved...:^)