NASA finds the source of the perfectly rectangular iceberg
NASA finds the source of the perfectly rectangular iceberg
Antarctica continues to dominate the news, with the discovery of lost continents, Scientists stab each other and that incredible perfectly rectangular iceberg. Speaking of that berg, its popularity has inspired NASA to forget about the dead Martian rover for a while and try to figure out exactly how it was formed. He did it, and the answer is ...
Not so fast! We could join NASA and milk this frozen squareberg for all it's worth. After the tabular iceberg was discovered in October 2018 by NASA scientist Jeremy Harbeck while traveling on a plane when it was supposed to be studying the changes in the thickness of glaciers and ice sheets, it was speculated with its A -68, the massive iceberg that separated from the Larsen C ice shelf in 2017. This seemed plausible since the A-68 traveled to slightly warmer waters and crashed into the coast and other icebergs. The ice at the thinner edges could easily break along a straight line.
A-68 breaking (NASA)
However, when it comes to tracking the lineage of icebergs, the proof is in the images. NASA was well above Jeremy Harbeck's Operation IceBridge to images of its Landsat 8 and the Sentinel-1 satellites of the European Space Agency taken in recent years. Scanning the Larsen C ice shelf, they discovered that the squareberg separated from him instead of the A-68 just a few weeks after the violent departure of the berg monster, which probably left the edges of Larsen C in a weakened state.
A-68 breaking from another angle (NASA)
The image of the birth of the squareberg (seen here) shows how small the 4 km long iceberg is in relation to the A-68, which is often compared to small states or countries. What surprised NASA researchers more than their shape was that it remained relatively intact for a year, as it floated very close to the A-68 store in Ice-Bull-in-a-China, which constantly clashes with the climb of Bawden ice. an elevated ice shelf in Larsen C and other smaller icebergs. Although it is still rectangular, it is reduced to 1500 meters by 900 meters and tends towards a trapezoid with only two parallel sides.
Still, it's quite impressive ... just like NASA's quick work in using its satellites to accurately identify its place of origin. Now, if they could use the same satellites to find keys and remote controls ...
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