In Antarctica, the largest iceberg A-68 began to collapse – with a length of about 150 km, and an area of 5.1 thousand square meters. km About this writes the BBC.
The A-68 iceberg broke away from the Larsen ice shelf in July 2017. Then its area was 5.8 thousand square meters. km is twice as much as the area of Moscow. Its size was 175 km by 50 km, the average thickness is 190 m, and its mass is 1 trillion tons. A-68 cracking reduced the total area of the Larsen C ice shelf by 12%.
Now the size of the glacier has decreased, because a piece of about 175 square meters has broken off from it. km Scientists consider this the beginning of the end of the glacier – the A-68 will gradually begin to split into smaller pieces. According to Adrian Lackman, a researcher at the University of Swansea, the process of destruction of the glacier will last for years.
Confirmation of the destruction of the glacier are satellite photographs taken by the Sentinel-1 probe of the European Space Agency.
The name A-68 comes from the classification system, thanks to which Antarctica is divided into giant squares. Since the iceberg broke off from the ice shelf of Larsen in the Weddell Sea, he received the designation “A”. “68” was the last number in a series of large fjords in this sector.