1 Updates
Arctic ice level down to a fifth since 1980
Photo Credit: Alex Wong, Getty Images

Arctic ice level down to a fifth since 1980

Feb 14 2013, 1:58am CST | by

Washington, Feb 14 (IANS) The Arctic has lost more than a third of summer sea-ice volume since a decade ago, and is only a fifth of what it was in 1980, according to satellite observations.

Washington, Feb 14 — The Arctic has lost more than a third of summer sea-ice volume since a decade ago, and is only a fifth of what it was in 1980, according to satellite observations. "What this new...

Filed under: news

Full Story below YouTube Videos

 
 

 

1 year ago

Arctic ice level down to a fifth since 1980

Feb 14 2013, 1:58am CST | by

Washington, Feb 14 (IANS) The Arctic has lost more than a third of summer sea-ice volume since a decade ago, and is only a fifth of what it was in 1980, according to satellite observations.

Washington, Feb 14 — The Arctic has lost more than a third of summer sea-ice volume since a decade ago, and is only a fifth of what it was in 1980, according to satellite observations.

"What this new paper shows is that our ice loss estimates may have been too conservative, and that the recent decline is possibly more rapid," said study co-author Axel Schweiger, polar scientist in the University of Washington (UW) Applied Physics Lab.

"Other people had argued that 75 to 80 percent ice volume loss was too aggressive," said Schweiger, the journal Geophysical Research Letters reports.

Arctic sea ice is shrinking and thinning at the same time, Schweiger explained, so it's normal for the summer ice volume to drop faster than the area covered, according to a Washington statement.

The system developed at Washington provides a 34-year monthly picture of what's happening to the total volume of Arctic sea ice.

The Pan-Arctic Ice Ocean Modelling and Assimilation System, or PIOMAS, combines weather records, sea-surface temperature and satellite pictures of ice coverage to compute ice volume.

It then verifies the results with actual thickness measurements from individual moorings or submarines that cruise below the ice.

"Because the ice is so variable, you don't get a full picture of it from any of those observations," Schweiger said.

"So this model is the only way to reconstruct a time series that spans multiple decades."

The UW system also checks its results against five years of precise ice thickness measurements collected by a specialized satellite launched by NASA in 2003.

The Ice, Cloud, and Land Elevation Satellite, or ICESat, measured ice thickness across the Arctic to within 15 inches until spring of 2008.

IANS

Source: IANS

 

Don't miss ...

 

<a href="/latest_stories/all/all/8" rel="author">Luigi Lugmayr</a>
Luigi is the founding Chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com. Luigi posts regularly on LuigiMe.com about his experience running I4U.

 

blog comments powered by Disqus

Latest stories

EmpowHer Institute to Honor Four Amazing and Unstoppable Women at the Annual Girls to Greatness Luncheon Saturday, April 26, 2014 – the Beverly Hills Hotel
Honorees include: Musette Buckley – Senior V.P., Warner Bros. Pictures; The Honorable LaDoris (Dot) Harris, Director of the Office of Economic Impact and Diversity at the United States Department of Energy; Renata Simril, Senior V.P. of External Affairs at The Los Angeles Dodgers; Denita Willoughby, Regional V.P. of External Affairs at Southern California Gas Company.
 
 
DDA Seeks Businesses and Tenants for &quot;Suite Spot @ Sugar Hill&quot;
The City of Sugar Hill Downtown Development Authority is recruiting businesses and tenants for sought after downtown area. Come grow with the City of Sugar Hill.
 
 
Obama Has Legal Duty to Provide Clemency for Drug Offenders Says Federal Clemency Advocacy Center
Federal criminal justice reform advocates support the Obama administration clemency review plans but say that much more is needed. Advocates say that the President has a legal and moral duty to commute the sentences of tens of thousands of people in prison for mandatory minimum sentences.
 
 
The Academic Advantage Reaches a Settlement with the New York U.S. Attorney’s Office Over New Employees’ Fraud
New York, NY, April 22, 2014 --(PR.com)-- The Academic Advantage reached a settlement to pay $2 million after an investigation regarding allegations of misconduct of federal funds in the government-funded tutoring...
 
 
 

Latest from the Network

First Week of GRMN June 21st Options Trading
Investors in Garmin Ltd. (NASD: GRMN) saw new options become available this week, for the June 21st expiration. At Stock Options Channel, our YieldBoost formula has looked up and down the GRMN options chain for the new...
Read more on Business Balla
 
First Week of CHTR December 20th Options Trading
Investors in Charter Communications Inc (NASD: CHTR) saw new options begin trading this week, for the December 20th expiration. One of the key data points that goes into the price an option buyer is willing to pay, is...
Read more on Business Balla
 
First Week of December 20th Options Trading For Viacom (VIAB)
Investors in Viacom Inc (NASD: VIAB) saw new options begin trading this week, for the December 20th expiration. One of the key data points that goes into the price an option buyer is willing to pay, is the time value,...
Read more on Business Balla
 
First Week of LINTA June 21st Options Trading
Investors in Liberty Interactive Corp – Interactive Com Ser A (NASD: LINTA) saw new options begin trading this week, for the June 21st expiration. At Stock Options Channel, our YieldBoost formula has looked up and down...
Read more on Business Balla
 
Could DueDil's Latest API Update Make CRM Systems More Reliable?
The leading British CRM startup, DueDil has released the third update to their API in 12 months, which includes a brand new advanced search capability designed to take the hassle and time out of maintaining the existing...
Read more on Business Balla
 
Should I Gift Money To My Children Now Or Later?
Your financial legacy is a reward for a lifetime of hard work and financial success. Many affluent Americans want to give their children money, but aren’t sure about whether to make a living gift or leave money in their...
Read more on Business Balla
 
First Week of ARCP June 21st Options Trading
Investors in American Realty Capital Properties Inc (NASD: ARCP) saw new options become available this week, for the June 21st expiration. At Stock Options Channel, our YieldBoost formula has looked up and down the ARCP...
Read more on Business Balla
 
International Game Technology is Oversold
The DividendRank formula at Dividend Channel ranks a coverage universe of thousands of dividend stocks, according to a proprietary formula designed to identify those stocks that combine two important characteristics —...
Read more on Business Balla
 
Social Security At Age 62? Why Delaying Your Benefits May Not Pay Off
The following is a guest post by Scott T. Hanson, CFP, a financial advisor with Hanson McClain Advisors in Sacramento, Calif.  What if I told you to start take your social security benefits as early as possible? That...
Read more on Business Balla
 
New Home Sales Drop 14.5% In March, Underlining A Slowing Housing Market
Sales of newly-constructed homes fell by 14.5% in March, a significant drop underscoring that the housing market is indeed slowing down. New single-family homes sold at an annual pace of 384,000 (seasonally adjusted)...
Read more on Business Balla
 
 
Auto Balla Sexy Balla Sport Balla TV Balla Politics Balla Movie Balla Apple Balla Business Balla Ad Balla Celebrity Balla