HOME >> BIOLOGY >> NEWS
Arctic ice retreating more quickly than computer models project

BOULDER--Arctic sea ice is melting at a significantly faster rate than projected by even the most advanced computer models, a new study concludes. The research, by scientists at the National Center for Atmospheric Research (NCAR) and the University of Colorado's National Snow and Ice Data Center (NSIDC), shows that the Arctic's ice cover is retreating more rapidly than estimated by any of the 18 computer models used by the Intergovernmental Panel on Climate Change (IPCC) in preparing its 2007 assessments.

The study, "Arctic Sea Ice Decline: Faster Than Forecast?" will appear tomorrow in the online edition of Geophysical Research Letters. It was led by Julienne Stroeve of the NSIDC and funded by the National Science Foundation, which is NCAR's principal sponsor, and by NASA.

"While the ice is disappearing faster than the computer models indicate, both observations and the models point in the same direction: the Arctic is losing ice at an increasingly rapid pace and the impact of greenhouse gases is growing," says NCAR scientist Marika Holland, one of the studys co-authors.

The authors compared model simulations of past climate with observations by satellites and other instruments. They found that, on average, the models simulated a loss in September ice cover of 2.5 percent per decade from 1953 to 2006. The fastest rate of September retreat in any individual model was 5.4 percent per decade. (September marks the yearly minimum of sea ice in the Arctic.) But newly available data sets, blending early aircraft and ship reports with more recent satellite measurements that are considered more reliable than the earlier records, show that the September ice actually declined at a rate of about 7.8 percent per decade during the 1953-2006 period.

"This suggests that current model projections may in fact provide a conservative estimate of future Arctic change, and that the summer Arctic sea ice may disappear considerably earlier tha
'"/>


30-Apr-2007


Page: 1 2 3

Related biology news :

1. Arctic Observing Network as a tool for understanding Arctic change
2. 1,000-year-old Arctic ponds disappearing due to global warming
3. Global warming is evaporating Arctic ponds, new study shows
4. Arctic spring comes weeks earlier than a decade ago
5. Study helps preserve Arctic whale, Eskimo subsistence hunt
6. Worldwide research network needed to really understand what is changing in the Arctic
7. Scientists discover new life forms in the Arctic Ocean
8. Understanding the Arctic -- NSF-funded expeditions cover new ground in climate science
9. Methane devourer discovered in the Arctic
10. Continued warming of the Arctic Ocean
11. Arctic Meltdown, Global Effects: Transatlantic Research Conference

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/7/2019)... ... 07, 2019 , ... Landsec and Spartan Bioscience today announced ... , In May, Landsec will undertake trials using Spartan’s innovative Legionella test. Spartan’s ... take corrective action within hours instead of weeks. This test, if approved, ...
(Date:5/2/2019)... ... 2019 , ... Philadelphia intellectual property law firm Panitch ... Ph.D., a registered patent agent, has joined the firm as a new member ... technical support and scientific expertise in the pharmaceutical and biotechnical arts and assists ...
(Date:5/2/2019)... ... May 01, 2019 , ... Gateway Genomics ... future children, announces a new publication titled, “ Self-Collection of Maternal Blood for ... Child Health. Previous studies had only shown early gender determination using venous blood. ...
Breaking Biology News(10 mins):
(Date:5/14/2019)... ... May 13, 2019 , ... Leak ... instruments for the Pharmaceutical, Biotechnology, Medical Device and Food Packaging Industries’ is excited ... website aims to improve LDA’s ability to communicate directly with the marketplace; serving ...
(Date:5/4/2019)... ... 03, 2019 , ... Diopsys Inc, the world leader in ... vision test, a new full field electroretinography (ffERG) protocol designed to detect ... Americans will have glaucoma, with black Americans having the highest prevalence rate. This ...
(Date:5/2/2019)... ... 02, 2019 , ... Boston Robotic Hair Restoration announces the ... the days of painful hair transplant procedures. Boston Robotic Hair Restoration offers the ... robotic intelligent solution to offer a minimally invasive procedure. With the ARTAS® iX ...
(Date:4/16/2019)... SAN ANTONIO (PRWEB) , ... April 16, 2019 ... ... biometrics-based human identification systems, applications, and technology, today announced that Bank South Pacific ... through a competitive RFP process. The bank awarded Fulcrum a contract to deliver ...
Breaking Biology Technology:
Cached News: