Trillion-tonne iceberg breaks off Antarctica, poses huge risk to ships
A billion tonnes of iceberg – one of the largest ever recorded – has moved away from Antarctica after many months of anticipation and can now pose a serious danger to ships across the South Pole, scientists said on Wednesday.
The birth of the 5800 square kilometer iceberg outside the Larsen C ice shelf reduced by more than 12% in the region and the landscape of the Antarctic Peninsula has changed forever.
Icebergs in Antarctica soak up the sun all the time, but because this one is particularly large, you have to be careful your way across the ocean as it could endanger sea traffic.
The event took place sometime between July 10 and today, researchers said they monitored the growing gap in the West Antarctic ice shelf for years.
Iceberg, probably called A68, weighs more than a trillion tons. Its volume is twice as large as Lake Erie, one of the Great Lakes.
The final advance of the fault has been detected in NASA MODIS MODIS instrument data, images contained in thermal infrared at a resolution of one kilometer and confirmed by the VIIRS Suomi NASA instrument.
The development of the fault over the past year has been monitored with data from Sentinel-1 satellite of the European Space Agency – part of the European Copernican space component.
Sentinel-1 is a radar imaging system capable of acquiring images regardless of cloud cover and during the current winter polar darkness.
Tone billions of icebergs from Antarctica Glacier The image published by the European Space Agency ESA shows a photo taken by the mission Copernicus Sentinel-1-July 12, 2017, when a piece of ice more than twice the size of Luxembourg has been Broken the Larsen, C platform of ice in Antarctica, causing one of the largest recorded icebergs and changing the outline of the Antarctic Peninsula ever.
Although the remaining ice shelf will naturally continue to push, “researchers have already shown that the new configuration is potentially less stable than it was before the crack.
There is a risk that Larsen C may follow the example of his neighbor, Larsen B, who disintegrated in 2002, following a similar failure of labor induced in 1995.
“We expected this event for months and we were surprised to see how long it took to her as the fault crosses the last kilometers of ice,” said Professor Adrian Luckman of Swansea University in the UK-a.
“We will continue to monitor both the impact of this birth event on the Larsen C ice shelf and the fate of this huge iceberg,” said Luckman, principal investigator of the MIDAS project that oversees the crack.
The iceberg is one of the largest recorded and future developments are difficult to predict.
It can remain in one piece, but is more likely to break into fragments. Some of the ice can remain in the region for decades, while parts of the iceberg can move northward into warmer waters.