Arctic ice thins dramatically

[Chris]

 

[Chris]

Arctic sea ice extent averaged over November 2010 was 9.89 million square kilometers (3.82 million square miles). This is the second-lowest November ice extent recorded over the period of satellite observations from 1979 to 2010, 50,000 square kilometers (19,300 square miles) above the previous record low of 9.84 million square kilometers (3.80 million square miles) set in 2006.

Ice extent was unusually low in both the Atlantic and Pacific sectors of the Arctic and in Hudson Bay. Typically by the end of November, nearly half of Hudson Bay has iced over. But on November 30, only 17% of the bay was covered by sea ice. Compared to the 1979 to 2000 average, the ice extent was 12.4% below average for the Arctic as a whole.

Arctic Sea Ice News & Analysis

 

[SFC Ollie]

Yes and CNN reported yesterday that no matter what the weather (even this unusually cold December)it is caused by man made global warming...

 

[JWBooth]

Arctic sea ice extent averaged over November 2010 was 9.89 million square kilometers (3.82 million square miles). This is the second-lowest November ice extent recorded over the period of satellite observations from 1979 to 2010, 50,000 square kilometers (19,300 square miles) above the previous record low of 9.84 million square kilometers (3.80 million square miles) set in 2006.

Ice extent was unusually low in both the Atlantic and Pacific sectors of the Arctic and in Hudson Bay. Typically by the end of November, nearly half of Hudson Bay has iced over. But on November 30, only 17% of the bay was covered by sea ice. Compared to the 1979 to 2000 average, the ice extent was 12.4% below average for the Arctic as a whole.

Arctic Sea Ice News & Analysis

The sky is falling, the sky is falling!!!!!!
No wait, that's snow, ice, and temperatures that are falling.

 

[Chris]

Arctic sea ice extent for December 2010 was the lowest in the satellite record for that month. These low ice conditions are linked to a strong negative phase of the Arctic Oscillation, similar to the situation that dominated the winter of 2009-2010.

Arctic sea ice extent averaged over December 2010 was 12.00 million square kilometers (4.63 million square miles). This is the lowest December ice extent recorded in satellite observations from 1979 to 2010, 270,000 square kilometers (104,000 square miles) below the previous record low of 12.27 million square kilometers (4.74 million square miles) set in 2006 and 1.35 million square kilometers (521,000 square miles) below the 1979 to 2000 average.

Arctic Sea Ice News & Analysis

 

[Old Rocks]

Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008

Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008
R. Kwok

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA

G. F. Cunningham

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA

M. Wensnahan

Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, Washington, USA

I. Rigor

Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, Washington, USA

H. J. Zwally

Cryospheric Sciences Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

D. Yi

SGT, Inc., NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

We present our best estimate of the thickness and volume of the Arctic Ocean ice cover from 10 Ice, Cloud, and land Elevation Satellite (ICESat) campaigns that span a 5-year period between 2003 and 2008. Derived ice drafts are consistently within 0.5 m of those from a submarine cruise in mid-November of 2005 and 4 years of ice draft profiles from moorings in the Chukchi and Beaufort seas. Along with a more than 42% decrease in multiyear (MY) ice coverage since 2005, there was a remarkable thinning of ∼0.6 m in MY ice thickness over 4 years. In contrast, the average thickness of the seasonal ice in midwinter (∼2 m), which covered more than two-thirds of the Arctic Ocean in 2007, exhibited a negligible trend. Average winter sea ice volume over the period, weighted by a loss of ∼3000 km3 between 2007 and 2008, was ∼14,000 km3. The total MY ice volume in the winter has experienced a net loss of 6300 km3 (>40%) in the 4 years since 2005, while the first-year ice cover gained volume owing to increased overall area coverage. The overall decline in volume and thickness are explained almost entirely by changes in the MY ice cover. Combined with a large decline in MY ice coverage over this short record, there is a reversal in the volumetric and areal contributions of the two ice types to the total volume and area of the Arctic Ocean ice cover. Seasonal ice, having surpassed that of MY ice in winter area coverage and volume, became the dominant ice type. It seems that the near-zero replenishment of the MY ice cover after the summers of 2005 and 2007, an imbalance in the cycle of replenishment and ice export, has played a significant role in the loss of Arctic sea ice volume over the ICESat record

 

[Old Rocks]

This is the end-of-winter sea ice extent in the Arctic Basin, broken down by age. Stroeve explains:
Exclusive: Scientists track sharp drop in oldest, thickest Arctic sea ice. Climate Progress

This figure would support thinning of the icepack over the last couple of decades since older ice tends to be thicker than younger ice. You can see in this figure how little of the really old, and thick ice there is left in the Arctic Basin.

In fact, the figure shows ice 5 years or older dropping from 800,000 sq-km in 2008 to 400,000 in 2009 to only 320,000 sq-km. Spring 2010 also saw a record low in the amount of ice 4 years or older.

 

[ScienceRocks]

The volume is going down and the winter ice is even starting to decrease. When you think about it as the area of open water increases in length and size of the area it is kind of a tipping point of such that warms the area and feeds back in on its self. Since Mid Dec we have been below 2006-2007, which increases the chances for a new record minimum this September. In away I think the sea ice within the arctic have seen a tipping point as it feeds backs on its self with more energy into the system.

 

[uscitizen]

Could all that melting ice have to do with lowering ocean temps a bit?

It is all caused by global cooling.

 

[CrusaderFrank]

Feb 10, 2010

BBC: Do you agree that from 1995 to the present there has been no statistically-significant global warming

Phil Jones: Yes..."

http://news.bbc.co.uk/2/hi/8511670.stm

 

[ScienceRocks]

Could all that melting ice have to do with lowering ocean temps a bit?

It is all caused by global cooling.

That is something that should not be occurring as the oceans should be compounding more and more energy within them. We know for sure that something is occurring, but we cant account for it within the oceans as of now.

 

[uscitizen]

So Phil Jones is THE expert?

 

[uscitizen]

Could all that melting ice have to do with lowering ocean temps a bit?

It is all caused by global cooling.

That is something that should not be occurring as the oceans should be compounding more and more energy within them. We know for share that something is occurring, but we cant account for it within the oceans as of now.

there is also billions of tons of plastic floating on the surface of the ocean.
It must reflect some light or diffuse it?

 

[CrusaderFrank]

So Phil Jones is THE expert?

So he's only an expert when he agrees with the settled science consensus?

 

[ScienceRocks]

Feb 10, 2010

BBC: Do you agree that from 1995 to the present there has been no statistically-significant global warming

Phil Jones: Yes..."

BBC News - Q&A: Professor Phil Jones

.8-1.2c of warming over the arctic since 2000. Here is one of the stations.

 

[Old Rocks]

http://soa.arcus.org/sites/soa.arcu...em-components/pdf/1-1-7-maslowski-wieslaw.pdf

Advancements and Limitations in Understanding and Predicting Arctic Climate Change

Wieslaw Maslowski

Naval Postgraduate School
1. The rate of decrease of sea ice thickness and volume appears to be much greater than that of sea ice extent

2. Oceanic heat has contributed critical preconditioning to sea ice melt in the western Arctic since the mid-1990s

3. Near ice-free summer Arctic might become a reality much sooner than GCMs predict

4. A regional high-resolutionArctic Climate System Model can address GCM deficiencies and improve predictive skill of climate modelsat seasonal to decadal scales

 

[Trajan]

Climate Change to Continue to Year 3000 : Discovery News


....

 

[CrusaderFrank]

Feb 10, 2010

BBC: Do you agree that from 1995 to the present there has been no statistically-significant global warming

Phil Jones: Yes..."

BBC News - Q&A: Professor Phil Jones

.8-1.2c of warming over the arctic since 2000. Here is one of the stations.

I have peer reviewed this chart and consider the science settled

 

[CrusaderFrank]

Mann: So as the above chart indicates,this Manmade Global Warning Climate Change Disruption is some serious shit!

 

[skookerasbil]

So Phil Jones is THE expert?

He was THE MAN for the k00ks for years and years........until the hockey stick got blown to shit!!