Rignot provided a grim conclusion that the glaciers in the West Antarctica's Amundsen Sea
sector "have passed the point of no return.
Those flowing into the Amundsen Sea
alone are discharging 60 per cent more ice than they accumulate.
ANTARCTIC: A 233-squaremile iceberg (about 25 miles long and nine miles wide) has broken off the Pine Island Glacier in the Antarctic and is drifting north-west in the Amundsen Sea
, the National Ice Centre reported yesterday.
According to glaciologist and lead author Eric Rignot, of UC Irvine and NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, said that the study presents multiple lines of evidence, incorporating 40 years of observations that indicate the glaciers in the Amundsen Sea
sector of West Antarctica "have passed the point of no return.
The study presents multiple lines of evidence, incorporating 40 years of observations that indicate the glaciers in the Amundsen Sea
sector of West Antarctica "have passed the point of no return," according to glaciologist and lead author Eric Rignot, of UC Irvine and NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.
The iceberg has been drifting out of Pine Island Bay and moving into the Amundsen Sea
off the western side of the continent, ever since it first formed in November.
Glaciers flowing into the Amundsen Sea
in West Antarctica are melting so fast that they discharge 60pc more ice into the sea than they accumulate through snowfall.
The researchers studied the Pine Island, Thwaites, Haynes, Smith, Pope and Kohler glaciers, all of which discharge ice into a vast bay known as the Amundsen Sea
Embayment in West Antarctica.
The team examined the entry to one of three cross-shelf passages in the Amundsen Sea
that allow warm oceanic water to reach beneath the ice shelves in front of the Thwaites and Pine Island Glaciers, which show the fastest thinning.
In 2009, Jacobs and an international team of scientists sailed to the Amundsen Sea
aboard an icebreaking ship to study the region's thinning ice shelves -- floating tongues of ice where landbound glaciers meet the sea.
Researchers found glaciers were discharging 60 per cent more ice into the Amundsen Sea
in West Antarctica than they accumulate in snowfall.
Washington, July 11 ( ANI ): A huge chunk of ice broke off on Monday from Antarctic's Pine Island glacier, the longest and fastest flowing glacier in the frozen continent, and is now flowing as a very large iceberg in the Amundsen Sea