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Antarctic ice sheet loss temporarily slows due to remote influence of tropical warm pool: Chinese, foreign scientists_我的网站

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A |     

“我今后还会出现在职业表演滑的赛场之上,只是不再参加竞技比赛。”日本花滑名将羽生结弦19日召开记者会,表示自己将告别竞技赛场,转战职业花滑领域。    
Adelie penguins (Pygoscelis adeliae) on fast ice with tourists walking in the background, Bourgeois Fjord, Marguerite Bay, Antarctica. Photo: VCG
    Adelie penguins (Pygoscelis adeliae) on fast ice with tourists walking in the background, Bourgeois Fjord, Marguerite Bay, Antarctica. Photo: VCG
Joint research by Chinese and international scientists have found that the rate of long-term Antarctic mass loss has slowed, driven by sea surface temperature anomalies in the remote tropical warm pool, China Central Television (CCTV) reported on Thursday, citing a statement released by the Institute of Oceanology, Chinese Academy of Sciences (CAS). 
The Antarctic ice sheet is one of the major sources of uncertainty in global sea-level rise forecasts. From 2003 to 2024, the Antarctic ice sheet lost an average of approximately 140.5 billion tons each year, CCTV reported. 
However, Chinese and foreign scientists have found that the Antarctic ice sheet gained roughly 695 billion tons between July 2021 and April 2023, the largest 22-month mass gain seen in nearly two decades via satellite gravimetry, the Institute of Oceanology, CAS announced on Thursday.
The scientists found out that from 2021 to 2023, sustained heavy snowfall in East Antarctica led to significant increases in snow accumulation, partially offsetting the ongoing ice loss in West Antarctica. 
The scientists' research shows that this was caused by tropical ocean-driven atmospheric processes that altered moisture transport pathways and increased snowfall over Antarctica. 
The research was conducted by the research team at the Institute of Oceanology at CAS, along with peers from countries including the US, Hungary and Japan. It was published in the academic journal Nature on Wednesday. 
According to Wang Yunhe, first author of the research paper and an associate research fellow at the Institute of Oceanology, sea surface temperatures in the tropical western Pacific warm pool remained unusually warm from 2021 to 2023. As one of the regions with the highest sea surface temperatures and strongest heat release into the atmosphere worldwide, changes in this region can reshape atmospheric circulation. 
The persistently warmer-than-normal seawater triggered large-scale atmospheric waves. 
After reaching the high latitudes of the Southern Hemisphere, the waves reshaped wind patterns and moisture transport pathways. Moisture-tracking simulations show that water vapor from the mid-latitude Indian Ocean fueled heavy snowfall in East Antarctica, leading to a recovery in ice sheet mass. 
Observations and climate simulations suggest that such warming events occur roughly once a decade. But these temporary pauses are not enough to reverse Antarctica's long-term ice loss. The West Antarctic ice sheet continues to shrink, while parts of East Antarctica remain increasingly vulnerable to warmer ocean waters melting ice shelves from below and speeding the flow of glaciers into the sea.
The study shows how persistent warming in the tropical warm pool can contribute to the recovery of Antarctic ice-sheet mass, highlighting the role of East Antarctic atmospheric circulation in connecting tropical climate shifts with changes in the ice sheet. The findings point to a previously overlooked climate link between the tropical warm pool and East Antarctica, offering a new perspective on how distant climate systems may shape the continent's future.
Global Times

B | 路透社19日称,对于被看作有史以来最伟大的滑冰运动员之一的羽生结弦来说,这是传奇比赛生涯的结束,“但他将其视为花滑生涯新阶段开始”。羽生结弦在记者会上表示,自己将继续挑战阿克塞尔四周跳(4A),“作为职业花滑运动员,我将在重视这项运动的同时,追求属于羽生结弦的理想。”他还表示,希望未来将不仅局限于赛场,而是通过各种方式创造展示花滑技巧的机会。羽生结弦还多次向粉丝表示感谢,“能够得到这么多人的支持,我感觉自己很幸运,所以必须更加努力。我并非艺人或者偶像,还是希望作为一个运动员被大家所熟知”。羽生结弦在花滑界享有“冰上艺术家”的美誉,他凭借稳定的技术、出色的艺术表现力及历史性的成就,奠定“现代花滑王子”的地位。2014年索契冬奥会,当时年仅19岁的羽生结弦夺得金牌,成为亚洲首位冬奥会男子单人滑冠军,也是冬奥会史上最年轻的男子单人滑冠军。2018年平昌冬奥会,当时23岁的羽生结弦完成卫冕,成为继1952年的美国名宿巴顿之后,首个连续两届冬奥会斩获男子单人滑金牌的选手。

C |

2020年2月,羽生结弦首次登上四大洲花滑锦标赛最高领奖台,实现职业生涯国际滑联大赛全满贯,成为历史第一人。羽生结弦职业生涯最大的遗憾莫过于2022年北京冬奥会上挑战4A失败,最终获得第4。

D | 雅虎日本19日盘点羽生结弦职业生涯时称,“虽然脚踝受伤,但他依然挑战了梦想中的绝技,在北京冬奥会上再次创造历史”。

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Published on:09:24:15