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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

一 |     近日，“2026年杭州世界遗产能力建设基地系列项目”启动仪式在杭州西湖博物馆（总馆）举行，现场同步宣布杭州世界遗产能力提升项目正式启动。

二 | 本次活动依托杭州西湖文化景观、中国大运河（杭州段）、良渚古城遗址三处世界文化遗产的独特禀赋，以杭州“世遗之间”品牌为载体，探索世界遗产整体保护、协同管理、开放共享的实施路径，推动三大遗产地在保护理念、管理机制、学术研究、公众传播、人才培养等领域深度融合，塑造辨识度鲜明的杭州世遗保护创新实践范式。    

    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
。现场举行了两项战略合作签约仪式。杭州西湖文化景观与联合国教科文组织亚太地区世界遗产培训与研究中心（上海分中心）签署《战略合作协议》，进一步深化双方在世界遗产保护领域的合作，也标志着西湖将深度对接国际顶尖专业资源，聚焦人才培养、学术研究、国际交流等重点领域精准发力，全面提升西湖世遗保护管理的国际化、专业化、规范化水平。杭州西湖世界文化遗产监测管理中心还与浙大城市学院艺术与考古学院签署校地《战略合作协议》。

三 | 此次战略合作将充分发挥双方在资源、人才、技术等方面的互补优势，围绕世界遗产监测预警、智慧治理升级、专业人才培育、科研技术攻关等领域开展深度合作，助力西湖世遗保护工作高质量发展。启动仪式之后，联合国教科文组织亚太地区世界遗产培训与研究中心秘书长、上海分中心主任、同济大学教授邵甬为学员讲授第一课——《树立和践行正确政绩观——遗产保护与城市可持续发展》。

四 | 2026年杭州世界遗产能力提升项目是世界遗产能力建设基地项目的重要组成，是杭州搭建世遗保护能力建设培育平台、深化世界遗产领域交流协作的重要举措，将为推动国际先进遗产保护理念与本土实践深度融合、落地赋能创造有利条件，也为持续提升“一城三世遗”协同治理效能、探索形成具有杭州特色的世界遗产保护实践经验开启全新篇章。

五 |

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Published on:04:03:03