Greater London-sized Iceberg Breaks off near U.K. Antarctic Base
12:51 JST, February 2, 2023
LONDON (AFP-Jiji) — A huge iceberg nearly the size of Greater London has broken off the Antarctic ice shelf near a research station, the second such split in two years, researchers announced Jan. 23.
The British Antarctic Survey (BAS) said the formation of the new iceberg — in a natural process called “calving” — was not due to climate change, which is accelerating the loss of sea ice in the Arctic and parts of Antarctica.
The iceberg, measuring 1,550 square kilometers, detached from the 150-meter-thick Brunt Ice Shelf a decade after scientists first spotted massive cracks in the shelf.
A similar spectacular separation, involving a 1,270-square-kilometer iceberg, occurred around a year ago.
“This calving event has been expected and is part of the natural behavior of the Brunt Ice Shelf,” said BAS glaciologist Dominic Hodgson.
“It is not linked to climate change.”
Britain’s Halley VI Research Station monitors the state of the vast floating ice shelf daily but is unaffected by the latest rupture.
The mobile research base was relocated inland for safety reasons in 2016-2017 as cracks in the ice threatened to cut it off.
Since then, staff have been deployed there only during the Antarctic summer between November to March, with 21 researchers currently on-site.
They maintain the power supplies and facilities that keep scientific experiments operating remotely through the winter, when it is dark for 24 hours and the temperature falls below minus 50 C.
“Our science and operational teams continue to monitor the ice shelf in real-time to ensure it is safe, and to maintain the delivery of the science we undertake at Halley,” added Hodgson.
They are set to be collected by aircraft around Feb. 6, according to the BAS, a world leader in environmental research in the region.
"Science & Nature" POPULAR ARTICLE
Japanese Government Unveils Liquefied CO2 Transportation Ship ‘Excool’
Bones from German Cave Rewrite Early History of Homo Sapiens
SLIM Lunar Probe Resumes Operation; Solar Panel Catching Light
SLIM Lander Powers Down for Long Lunar Night; JAXA Releases New Batch of Moon Snapshots
Advanced Helium-Cooled Reactor to be Given Power-Loss Test; Aim is to Verify Safety of Reactor Shutdown System
JN ACCESS RANKING
- Japan Eyes 45 B. Yen in Aid for Optical Semiconductors
- Business, Labor Leaders Reaffirm Vow to Raise Wages in Shunto Talks
- Japan Real Wages Fall at Steepest Pace in 9 Years in 2023
- Japan’s Job Availability Ratio Rises for 2nd Straight Year
- North Korean Workers in China Riot over Unpaid Wages; 2,000 Occupy Factory, Kill Plant Manager