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Werther

Thanks, Neven....and Ben/Danny for this incredibly beautiful picture.

Werther

A general comparison between 12 and 13 is maybe not in the right thread here.

I’ll post a larger version on the Forum, but for this occasion I marked a 130 km radius circle around Baillie Island/Cape Bathurst to get the Healy position 71.3N 131.2W 27th August at the entrance of Amundsen Gulf:

 photo UBcomparison12to13small_zps2bd422d5.jpg

Healy met the Polar Bear exactly on the extended tip of the sea ice out there.

Hope you see it on this tiny scale…

John Christensen

Great photo and video, thanks Neven!

The polar bears must definitely appreciate the 'summer' they have had in the Beaufort area - looks like a nice spot for them for a weekend Getaway.. ;-)

Jim Hunt

Thanks for the enlightening images Neven.

I might have to quibble with you slightly about the Northwest Passage not opening up this year though. On the southern route a variety of craft have made it through the choke points at Cape Bathurst and Bellot Strait. The most recent passage past the former that I'm aware of is David Scott Cowper in Polar Bound:

http://www.positionsreport.de/php/enterTrack.php?callSign=VP8DEU

Whether he can make it past the latter and out of the eastern end remains to be seen!

Neven
I might have to quibble with you slightly about the Northwest Passage not opening up this year though.

You're right, Jim. I was referring to the central route.

Espen Olsen

Neven,

You mean the Autobahn not the dirt road?

Neven

Yes, the boulevard, not the back alley. ;-)

Ben Pelto

We were able to take ice liberty (lower a ramp from the Healy and descend onto the ice) on August 24th west of southwestern Banks Island, on a thick piece of first year ice. We have left the ice as of today and are coring around 69 58.443N 137 14.665W northwest of the Mackenzie River Delta. We are trying to core in the trough around a pingo
http://www.britannica.com/EBchecked/media/157028/Pingo-in-the-Mackenzie-River-delta-near-Tuktoyaktuk-northwestern-Northwest
,albeit an underwater pingo. As I understand it, when a pingo forms a there is a trough around it--ideal for sediment deposition, so we are trying to get sediment back through the holocene. Our 10 foot gravity core (weighted PVC pipe) succeeded, but our 20 footer snapped at the top and had no recovery--I need to go out now to help deploy a jumbo piston core (60 feet today), lets hope it works!!

michael sweet

Even the southern route of the North West Passage has been choked with ice this year. Several of the boats that made it through had ice breaker assistance. They also passed through open ice fields with 20% or more ice. The Canadian Ice Service only rates the NWP as open when there is a passage with no ice. It appears unlikely that that will happen even on the southerly route this year as ice has moved over the passage at both ends near Resolute and the Amundson Gulf. You have to look at the Canadian Ice Service maps to see the details of ice in the passage, the satellite images miss a lot of ice.

Hans Gunnstaddar

Good video but I would have enjoyed some scientific explanation besides blah, blah, blah. Nice to see the polar bears though and think this is a good year for them to fatten up and have lots of offspring.

Colorado Bob

Something from the south -
Please see the 500 mb chart with this post -

On August 29th the temperature soared to 32.6°C (90.7°F) at Bahia Blanca, Argentina, an all-time record for the month of August. This follows a reading of -7.9°C (17.8°F) recorded on August 25th, their all-time record low for the month! The site has a POR (period of record) of over 100 years. Their normal daily range of temperature during August is 9.2°C-16.0°C (49°F-61°F).

http://www.wunderground.com/blog/weatherhistorian/comment.html?entrynum=189#commenttop

Colorado Bob

Someone needs to start the Antarctic Ice blog.

Artful Dodger

CO Bob, there's an entire section on Antarctica over at the ASI Forum:

Arctic Sea Ice : Forum » Cryosphere » Antarctica

https://forum.arctic-sea-ice.net/index.php/board,13.0.html

Cheers,
Lodger

NJSnowFan

Another Large Russian Ice Breaking/Destroying ship headed in the Direction of the North Pole.
The Russians love to Crush the Arctic ice up. Since they started their fleet in the late 70's the Ice has been crushed ever since. More and more ships are taking shorter route and Russian ice breakers are keeping the route ice free.
http://www.sailwx.info/shiptrack/shipposition.phtml?call=UGSN
http://www.arctic-lio.com/node/188
http://en.wikipedia.org/wiki/Admiral_Makarov_(icebreaker)

Large Ice breaking ships cause more damage to the Ice then everyone believes.

Look at south pole Ice breaking ship has been doing so called research in an area for some 400 or so hours. Look at the sea ice sat loop and where the ice crushing ship was. The ice was thin and water opened up from the ship.
put in 400 hours in tracker box.
http://www.sailwx.info/shiptrack/shipposition.phtml?call=WBP3210
Run this loop of the area and where the Ice breaking ship was at the time, few days latter ice opened up/thin.
Some of you have better access to Actual satellite pictures , match them . http://arctic.atmos.uiuc.edu/CT/animate.antarctic.color.4.html

Ice Breaking ships are a main cause of Arctic sea ice loss is my feeling.

Blaine

Really, the Antarctic response to global warming is as scary as the Arctic response. It's just totally different due to having deep grounded ice, along with deep ventilation in the Southern Ocean. It turns out that the main response is that the ocean warms at depth, this brings warm water to the deep ice and melts it, this brings fresh water to the surface, and this stops or slows convection. This makes the deep water warmer, for positive feedback. The deep water (greatest change around 110m, but it warms all the way down) warms, while the surface actually cools. The convergence zone which separates warm and cool water moves north. The scary thing is that this has already gone as far as it has, while all the simulations show that it's really a centennial time-scale response.

The usual reaction is, "yeah, look, average the ice in both hemispheres and it comes out normal." Yeah, it does, but when they both have huge trends and are melting ice quickly the average surface coverage doesn't mean a whole lot.

JanEek

It's been a while since I had the opportunity to read here, and maybe I am a little off or maybe I am stating the obvious, but it seems nobody is addressing the problem we (I'm Norwegian) see as one of the most frightening effects of the receding ice in the Arctic. That is the dire situation of the polar bears, especially around Svalbard.

Polar bears are now starving in these areas....

JanEek

Thank you Jim

Exactly what I am talking about. If one googles "ice melting polar bears", one will be slammed by a large number of hits.

So, I ask again: Is it only me, or is this an issue that has been neglected in the discussion?

I have a direct question to Hans Gunnstaddar: You write:" Nice to see the polar bears though and think this is a good year for them to fatten up and have lots of offspring."

So, where is it a good year for the polar bears?

John Christensen

@Jan,

The polar bears in the Beaufort/Alaska and Canadian Archipelago areas must have had an excellent summer this year with plenty of ice compared to recent years.

That said - and Neven can speak better to this - the main focus of this blog is really to follow the development in and causes of changes in the Arctic sea ice, and not directly the impact of these changes on fauna or flora.

JanEek

OK.
So the comments are for Americans and Canadians and not for the total effects of the receding ice....

By the way, you say "Arctic sea ice", well, that includes the areas I talked about.

You say:"this blog is really to follow the development in and causes of changes in the Arctic sea ice, and not directly the impact of these changes on fauna or flora."

For me, that is like an ostrich putting her/his head in the ground...

If you don't follow up on "not directly the impact of these changes on fauna or flora."

Then what on earth is the point?

Jim Hunt

Jan - It seems I slightly misunderstood your initial post! I think that this thread over in the "Consequences" section of the Arctic Sea Ice Forum may be what you are looking for?

JanEek

Again Jim

Thank you very much. I get it.

I will go there now....

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