New research provides the first evidence that greenhouse gases have a long-term effect on the warmer waters of the Amundsen Sea in Western Antarctica. Scientists at the British Antarctic Survey (BAS) say that although some have suggested this linkage, which is not studied yet.
Loss of ice from the West Antarctic Ice Sheet in the Amundsen Sea is one of the fastest growing and most influential contributions to rising sea levels worldwide. If the West Antarctic Ice Sheet were to melt, sea levels could rise by as much as three feet [3 m]. Ice loss patterns suggest that the ocean may have been warming in the Amundsen Sea a hundred years ago, but scientific discovery of the region began in 1994.
The study found
In a study – published in the journal Geophysical Research Letters – marine scientists used advanced computer modeling to mimic the ocean response to possible changes in the atmosphere between 1920-2013. a hundred years. This warming is accompanied by trends that mimic air patterns in the region that raise temperatures by driving warm water currents up and down the ice.
Sea
The rise in greenhouse gases is known to make these airways easier, so the inclination of the wind is thought to be due in part to man. It also provides a non-existent connection between ocean heating and atmospheric conditions known to be partially driven by thermal gases. Seawater temperatures around the West Antarctic Ice Sheet are likely to continue to rise if greenhouse gas emissions rise, resulting in melting glaciers and global sea levels. These findings suggest, however, that this situation can be prevented if carbon emissions are significantly reduced and air patterns in the environment are stable.
Dr. Kaitlin Naughten, the ocean-ice co-ordinator at BAS and lead author of the study, says, “Our images show how the Amundsen Sea responds to long-term processes in space, especially the Western Hemisphere. This raises concerns about the future. Because we know that these winds are attacking the greenhouse gases. However, it should also give us hope, because it shows that rising sea levels are not beyond our control. “
Professor Paul Holland, a maritime and ice scientist at BAS and co-author of the study, says, “Changes in the South Hemisphere and western winds are a climate-based response to the effects of greenhouse gases. However, the Amundsen Sea is also subject to extreme climate change. The simulation suggests that both natural and anthropogenic mutations are responsible for the loss of sea-driven ice from the West Antarctic Ice Sheet.
Source Journal Reference:Kaitlin A. Naughten, Paul R. Holland, Pierre Dutrieux, Satoshi Kimura, David T. Bett, Adrian Jenkins. Simulated Twentieth‐Century Ocean Warming in the Amundsen Sea, West Antarctica. Geophysical Research Letters, 2022; 49 (5) DOI: 10.1029/2021GL094566
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