Tuesday, July 7, 2020
Home Lead Story Arctic Sea Ice May Be Shrinking Faster Than Thought, says Study

Arctic Sea Ice May Be Shrinking Faster Than Thought, says Study

Arctic sea ice may be thinning faster than predicted because salty snow on the surface of the ice skews the accuracy of satellite measurements, a new a study from the University of Calgary said on Tuesday.

The report from the Canadian university’s Cryosphere Climate Research Group published in the academic journal Geophysical Research Letters found satellite estimates for the thickness of seasonal Arctic sea ice have been overestimated by up to 25 percent.

That means the Arctic Ocean could be ice-free much sooner than some scientific predictions, which forecast Arctic sea ice will first disappear completely during summer months between 2040 and 2050, according to lead author Vishnu Nandan.

Ice-free summers in the Arctic Ocean would impact global weather patterns by increasing the magnitude and frequency of major storms and alter the Arctic marine ecosystem, making it harder for animals like polar bears to hunt.

There is a wide range of projections as to when Arctic sea ice will start disappearing in the summertime as a result of warming global temperatures, and the University of Calgary study calls into question satellite measurements provided so far.

“The problem is, microwave measurements from satellites don’t penetrate the salty snow very well, so the satellite is not measuring the proper sea ice freeboard and the satellite readings overestimate the thickness of the ice,” Nandan said.

The Arctic sea ice freeboard refers to ice that can be seen above sea level and co-researcher John Yackel said, “Our results suggest that snow salinity should be considered in all future estimates on the Arctic seasonal ice freeboard made from satellites.”

Reporting by Nia Williams; editing by Diane Craft.(VOA)

STAY CONNECTED

18,992FansLike
362FollowersFollow
1,781FollowersFollow

Most Popular

Here’s What to Expect When You Catch a Flight from the Airport

Hustling sounds, frequent announcements, savvy travelers glued to their gadgets, emotional families waiting to receive or see-off their loved ones-- it's perhaps the opening...

A Must have Adventure Bucket List

The worldwide lockdown due to coronavirus has brought a screeching halt to every industry, including the travel and hospitality. With restrictions on international travel...

Picture Perfect Living Room Decor Ideas

A cosy and comfortable sofa set, a coffee table for tete-a-tete and a perfect TV unit to keep the entertainment mode on, all these...

‘Covid’ Now the most Searched Word of 2020

The term 'Covid' - the commonly used shorthand for Covid-19 or Coronavirus disease caused by the SARS CoV-2 virus - is the top word...

Beauty of Indian Culture: William Dalrymple on his Experience Living in India

India is one of the most religiously and ethnically diverse nations with the oldest culture in the World. The Indian culture varies like its...

Scientists Warn About Airborne Spread of Coronavirus

A report in The New York Times says a group of 239 scientists from 32 countries will publish an open letter to the World...

Online Searches Fall for Tik ToK, WeChat, ShareIT After Ban in India

The Indian government's decision to ban 59 Chinese owned apps has impacted online searches for those apps. A study found that on the June...

CBSE Partners Facebook to Provide Training on Digital Safety

The Central Board of Secondary Education (CBSE) on Sunday announced a partnership with Facebook to provide training on digital safety, online well being and...

Recent Comments