Antarctica’s size and remoteness had left many gaps in existing surveys. So scientists came up with a new kind of map. One result, revealed in 2019: the deepest canyon on Earth’s surface—nearly half as deep as Mount Everest is tall. ScienceMagArchives
As shown in the video above, the map uses the flow and volume of ice to infer the land below. It has revealed the deepest canyon on Earth's surface, plunging 3.5 kilometers below sea level under Denman Glacier in East Antarctica, nearly half as deep as Mount Everest is tall.
The uncovered terrain has mixed news for the future of Antarctica's ice: On the positive side, the map reveals a series of previously unknown ridges that sit above sea level in the deep valleys that drain the Transantarctic Mountains, which helps stabilizes the glaciers above and limits their potential ice loss. But at West Antarctica's, Thwaites, the news was not good: The glacier is grounded on a ridge below sea level, with a downward sloping basin behind it.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Antarctic ice hits record low for January: climate monitorThe Antarctic Ocean area covered by ice was the lowest on record for January, exposing Earth to even more planet-warming heat, scientists reported Wednesday.
続きを読む »
'No Time to Waste': Alarm as Antarctic Ice Hits Lowest January Level Ever Recorded'It is imperative for global and regional stakeholders to take swift action to mitigate the rise in global temperatures,' warns Samantha Burgess of the E.U.'s copernicusecmwfas Antarctic sea ice shrunk to its lowest January level ever recorded.
続きを読む »
Antarctic Ice Hits Lowest January Level Ever Recorded, Says Climate Monitor'It is imperative for global and regional stakeholders to take swift action to mitigate the rise in global temperatures,' warns Samantha Burgess of the E.U.'s copernicusecmwfas Antarctic sea ice shrunk to its lowest January level ever recorded. ...
続きを読む »
Passenger deaths on Antarctic cruises prompt Coast Guard investigationFour U.S. citizens died and more were injured during Antarctic cruises late last year, leading the U.S. Coast Guard to investigate four incidents that occurred in a span of less than three weeks.
続きを読む »
Scientists Discover Molten Layer of Rock Beneath Earth's CrustThe layer, located 100 miles below the Earth's surface, could help shed light on how the tectonic plates move.
続きを読む »
TikTok Dating Advice Is Hell On EarthThe TikTok algorithm is out for blood. Or at least, for your attachment style.
続きを読む »