Arctic Sea Ice

[johnno]

Or am I reading those maps wrong? How much of the state South Australia in % is included in "Southern Australian rainfall"?

[Anthony Violi]

Maybe it needs to be changed to Southern Northern Australia? I would have thought a clear seperation would be a line straight through the middle? Then whats north is northern, whats south is Southern?

[Anthony Violi]

Excellent news...we should break some records later this year rainfall wise.

BTW, that chart about Southern Australia, would have to go down as the most idiotic thing i have ever seen or heard, and i know your not responsible David, I just cant believe that.

[Michele]

Hottest may on record as recorded by NASA - (http://data.giss.nasa.gov/gistemp/table ... s+dSST.txt). The anomalies in the Arctic have been huge - around +4C. Also hottest start to a year on record and hottest 12 months on record.

They haven't a total cover on the world. The north pole is one of this zone.
http://wattsupwiththat.com/2010/06/15/w ... were-pink/

[Anthony Violi]

The SW portion....it's far too large.

[johnno]

Heres the May deciles for Australia

http://www.bom.gov.au/jsp/awap/rain/ind ... y&area=nat


So cos parts of SW WA had a drier than normal May and parts of Southern Victoria did too it automatically makes May slightly below normal for the South of Australia??? Meanwhile large areas of the rest of Southern Australia had above average (Most of SA had above average rainfall) or average at worst and it still comes out to being drier than normal?? Even though theres more blue and white on that map than red for Southern Australia? Gees we wouldn't want to make or say Southern Australia looks wet would we David it goes against everything you say and believe in. Might sound bit to simplistic but like Anthony I agree I think "Southern Australia" should be a line from Caranvon through the Northern border of South Australia to the North Coast of NSW but hey that be to easy wouldn't it be making things look "to wet".

I give up, will take a break from posting in here for a while this argument isn't going anywhere anymore & it's loseing subtance and creditbilty.

[Anthony Violi]

http://www.montrealgazette.com/technolo ... story.html

Arctic Ocean ice cover retreated faster last month than in any previous May since satellite monitoring began more than 30 years ago, the latest sign that the polar region could be headed for another record-setting meltdown by summer’s end.


The U.S. National Snow and Ice Data Center had already warned earlier this spring that low ice volume — the result of repeated losses of thick, multi-year ice over the past decade — meant this past winter’s ice-extent recovery was superficial, due mainly to a fragile fringe of new ice that would be vulnerable to rapid deterioration once warmer temperatures set in.


And, driven by unusually hot weather in recent weeks above the Arctic Circle, the polar ice is disappearing at an unprecedented rate, reducing overall ice extent to less than that recorded in May 2007 — the year when a record-setting retreat by mid-September alarmed climatologists and northern governments.


The centre reported that across much of the Arctic, temperatures were two to five degrees Celsius above average last month.


“In May, Arctic air temperatures remained above average, and sea ice extent declined at a rapid pace,” the Colorado-based centre said in its June 8 report.


The centre pegged the retreat at an average of 68,000 square kilometres a day, noting that “this rate of loss is the highest for the month of May during the satellite record.”

Ice loss was greatest in the Bering Sea and the Sea of Okhotsk, “indicating that the ice in these areas was thin and susceptible to melt,” the centre added.


“Many polynyas, areas of open water in the ice pack, opened up in the regions north of Alaska, in the Canadian Arctic Islands, and in the Kara and Barents and Laptev seas.”

The report also highlighted recent research indicating that, along with reduced ice extent — now reliably measured by the U.S. centre through satellite tracking — harder-to-measure ice volume also appears to be on a steady decline as mature ice that had previously survived many summers is now disappearing.


“Ice extent measurements provide a long-term view of the state of Arctic sea ice, but they only show the ice surface,” the centre stated. “Total ice volume is critical to the complete picture of sea-ice decline. Numerous studies indicate that sea-ice thickness and volume have declined along with ice extent.”


The report references a new University of Washington measurement model that estimates Arctic ice-volume trends.


According to those scientists, average Arctic ice volume in May was 19,000 cubic kilometres, “the lowest May volume over the 1979 to 2010 period.”


In November, University of Manitoba polar scientist David Barber also raised concerns about the increasingly “rotten” state of the Arctic’s oldest ice and predicted ice-free summers could become the norm far sooner than 2030, as some experts have forecast.


The U.S. centre was instrumental in alerting the world in 2007 to an unprecedented summer melt of Arctic sea ice, from 14 million square kilometres that winter to about 4.3 million square kilometres by September 2007.


The past two summers have shown modest recoveries in ice extent to a late-summer minimum of about 4.7 million square kilometres (2008) and 5.4 million square kilometres (2009), still the second- and third-lowest extents since satellite measurements began in 1979.


Despite the new signs pointing to a potential record-setting retreat again this summer, the U.S. centre isn’t making any firm predictions yet.


“It is too soon,” it stated, “to say whether Arctic ice extent will reach another record low this summer — that will depend on the weather and wind conditions over the next few months.”


Earlier this month, a major international study of the polar cap concluded that the Arctic ice retreat in recent years is the worst in several millennia.


That study, involving 18 scientists from five countries and published in the journal Quaternary Science Reviews, included data from two Canadian co-authors, who interpreted historic levels of ice cover from ancient whale bones found throughout the polar region.


"The current reduction in Arctic ice cover started in the late 19th century, consistent with the rapidly warming climate, and became very pronounced over the last three decades," the study stated. "This ice loss appears to be unmatched over at least the last few thousand years and (is) unexplainable by any of the known natural variabilities."

[Anthony Violi]

Arctic Ice melt has begun to slow now, winds have reversed and the ice from Hudson Bay is now mostly gone, so now we wait and see if its the 2nd largest melt or even less. Given the last week it might not be the 2nd largest melt either.

[Anthony Violi]

June ice extent was the lowest on record. July is currently running lowest or equal lowest.

Which will make it even more impressive when its not as low as 2007 in September.

[Anthony Violi]

Here's a tip, over the next few years the Arctic will start to recover and the Antarctic will start to fall.

[Anthony Violi]

Um, this is this weeks Arctic Ice compared with 2007, which was a record melt year. No way will it reach that level.

[Anthony Violi]

yep july second lowest...but not anymore. As i said, winds have reversed and melt is slowing.

[Anthony Violi]

Temps at the North Pole have suddenly dropped..

http://wattsupwiththat.com/2010/07/19/p ... more-22243

And WhatsUpWithThat now has a dedicated sea ice page.

http://wattsupwiththat.com/sea-ice-page/

[Anthony Violi]

[Anthony Violi]

http://wattsupwiththat.com/sea-ice-page/

All the latest sea ice data...in summary, the Southern Hemisphere anomaly is now greater than the Northern Hemisphere.

Temps have plummeted through the Arctic, very early and ice melt is slowing considerably. The 30% ice volume graph shows we are miles ahead in Volume on 2007.

[Anthony Violi]

Yes not anytime soon though David, we are well above 2007 levels.

[Anthony Violi]

Yes, you are correct, there is a pattern. NOAA put massive red dots on their anomaly map where there is no data for.

The average person knows this, at least now they do. Lets play put the big red dot on Greenland.

Corruption and climate...hand in hand. This pattern is getting repetitive.

[Anthony Violi]

You love using that libel slander line John...you think im the only one with these opinions? Theres about 7,000,000 posts a day all over the net about it.

The fact that nothing ever gets done about it indicates to me thats it may well be true, and wouldnt stand up. Its true GISS deletes data, it has been posted many times, its also true that on NOAAs famous anomaly map there are massive red dots for areas without data. Even they would agree to that, how can they not? They would have a reason for doing it, i dont agree with those reasons.

Thats my point of view, and will continue to stick to that. No one else needs to agree to my views, each person has there own views. And i couldnt care less about anyone elses view.

[Anthony Violi]

Yes John they delete data, we have seen it all before and posted it all before, its not a new thing its well documented on many forums. I have posted the link before, will do again in the other thread.

Interesting to note the Arctic is much colder at the moment than usual, and its struggling to rise again as can be seen from the graph below.

[Anthony Violi]

Its abundantly clear that the Arctic is unfortunately not melting anywhere near as much as previous years. Heres the latest graphs this week. We should see a continuing upward trend that began from 2007.

15% Ice extent. Well above the previous years. And also well below the 30 year mean.





The 30% ice extent, and you can really see why its struggling to melt.



And the best pic of all is the comparison with 3 years ago, showing a massive recovery in the ice extent. You can see there is a much larger amount of ice than this time 3 years ago. Apologies to SR Kerry, who this week predicted ice free Arctic in 5 to 10 years.