Beijing time:2021-02-28 05:13
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[New Tang Dynasty News February 28, 2021, Beijing time]February 26, local time, scientific research organization UKAntarcticaAccording to the British Antarctic Survey (BAS), a huge area of 1270 square kilometersicebergFromAntarcticaIce shelfCollapse. This area is equivalent to Greater London, which is larger than New York City in the United States.
ThisicebergFrom 150 meters thickBrentIce shelf(Brunt Ice Shelf) collapses and falls into the sea, this process is called “ice crack”.icebergcrackThe place of occurrence is only more than 20 kilometers away from the Halley Research Station (Halley Research Station), but there is no impact on personnel safety.
Brunt Ice Shelf calves along North Rift chasm – A 1270 km² #iceberg has broken off the #BruntIceShelf.#HalleyVI Research Station is closed for the winter and unlikely to be affected.
Full story: https://t.co/l13QrWdnB0
#NorthRift, #Antarctica, 16 Feb 2021, BAS_News pic.twitter.com/QyNt7sVOzT
— British Antarctic Survey (@BAS_News) February 26, 2021
Halle Research Station, an Antarctic scientific research station established by the United Kingdom, is locatedBrentThe ice shelf, the first generation was built in 1956. The research station was closed when the ice shelf completely collapsed on the 26th. The 12 staff inside had already evacuated from the research station before the arrival of winter in Antarctica in mid-February.
The British Antarctic Survey said that 10 years ago, scientists first discovered a huge crack in this ice shelf, and the crack has continued to expand since then. On the morning of the 26th, the crack expanded hundreds of meters in a few hours, and then a huge iceberg split.
For many years, the Halley VI Research Station (Halley VI Research Station) has been observing the state of the Brent ice shelf every day.The director of the British Antarctic Survey, Jane Francis, said: “For many years, personnel at this research station have beencrackBingberg has always been psychologically prepared. “
The British Antarctic Survey said that the research station must remain empty in winter to prevent unpredictable conditions this season. However, the data measured by the high-precision Global Positioning System (GPS) instrument used in the research station will still be transmitted to a center in Cambridge in the east of England for analysis.
The Halley VI Research Station (Halley VI Research Station) has been in operation since 2013. It is a mobile research station composed of 8 modular buildings. Each module is equipped with hydraulic legs and sleds, so that it can be moved by a trailer team. Avoid expanding cracks in the ice shelf.
In 2016, this research station had migrated dozens of kilometers inland to Antarctica due to the danger of the ice shelf breaking. Since 2017, the British Antarctic Survey has only sent a team to the Halley research station during the summer in Antarctica, and evacuated the team and closed the research station in winter.
(Reporter Fu Yuanxi Comprehensive Report / Chief Editor: Cheng Yiren)
The URL of this article: http://cn.ntdtv.com/gb/2021/02/28/a103063931.html
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