Natural variability is probably the cause, although global warming could have a role.
Without land barriers, sea ice in Antarctica can move more freely, under the direction of the wind and ocean swells.Antarctic sea ice shrank to below 2 million square kilometres this year, the lowest minimum extent since satellite records began 43 years ago.
“The record low for total Antarctic sea ice happened in much the same way as the 2017 event,” says Ryan Fogt, a climatologist at Ohio University in Athens. Both events had an earlier than average maximum sea-ice extent, which was followed by rapid declines, he says. From 2017, the sea-ice extent stayed well below average for a few years, returning to near-average conditions again in 2020.
“Antarctic sea ice responds to the whim of the atmosphere and ocean,” says Pat Langhorne, who studies such ice at the University of Otago in New Zealand. This includes wind direction and ocean swells, as well as patterns in the tropical Pacific Ocean related to El Niño and La Niña.
Österreich Neuesten Nachrichten, Österreich Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
Ernest Shackleton’s lost ship found a century later, nearly 10,000 feet under the Antarctic iceErnest Shackleton’s lost ship found a century later, 10,000 feet under the Antarctic ice
Weiterlesen »
Shackleton's Famous Antarctic Shipwreck Finally Discovered in The World's 'Worst Sea'Explorers have found one of the most famous shipwrecks in history, Ernest Shackleton's Endurance, deep in the icy sea off Antarctica more than a century after it sank, they announced Wednesday.
Weiterlesen »
Endurance, Ernest Shackleton’s Lost Ship, Found in Antarctica After 107 YearsOne of the greatest maritime mysteries of modern times was solved when a team of explorers said they had discovered the wreck of a ship that disappeared under Antarctic sea ice in 1915.
Weiterlesen »
Endurance: Explorer Shackleton's ship found after a centuryScientists say they have found the sunken wreck of polar explorer Ernest Shackleton’s ship Endurance, more than a century after it was lost to the Antarctic ice.
Weiterlesen »
Gas prices hit record highs in San Antonio; prices expected to continue to risingGas prices hit record highs Thursday, a result of fallout from the Russian invasion of...
Weiterlesen »
Manhattan rents rise to an all-time highRents in Manhattan are once again hitting new record highs, after cratering during the pandemic.
Weiterlesen »