SWOT分析揭示南极周边高海岸涡旋活动
近日,中山大学陈大可团队报道了SWOT分析揭示南极周边高海岸涡旋活动。这一研究成果发表在2026年3月24日出版的《国家科学评论》杂志上。
南极边缘海对全球气候至关重要,但直接观测数据,尤其是针对中尺度海洋涡旋的观测,依然十分匮乏。
研究组通过分析近期发射的“地表水与海洋地形”(SWOT)卫星提供的前所未有高分辨率海面高度数据,首次揭示了中尺度涡旋在南极大陆架区域的广泛分布。观测到的涡旋地理分布特征,结合涡解析模型模拟结果,支持了冰架基底融化和高密度陆架水形成是驱动该区域涡旋活动关键机制的假说。该研究结果凸显了创新性卫星测量手段在监测南极关键海洋过程方面的潜力,也表明在气候模型中解析丰富的南极海洋涡旋的必要性。
附:英文原文
Title: High coastal eddy activity around Antarctica revealed by SWOT
Author: Han, Xianxian, Wang, Qiang, Stewart, Andrew L, Wang, Zhaomin, Yang, Qinghua, Ni, Qinbiao, Liu, Chengyan, Chen, Dake
Issue&Volume: 2026-03-24
Abstract: Antarctic marginal seas are crucial for the global climate, but direct observations, especially of mesoscale ocean eddies, remain scarce. Here, by analyzing the unprecedented high-resolution sea surface height data provided by the recently launched Surface Water and Ocean Topography (SWOT) satellite, we reveal for the first time a widespread presence of mesoscale eddies across the Antarctic continental shelf. The geographic distributions of the observed eddies, along with eddy-resolving model simulations, support the hypothesis that ice shelf basal melting and dense shelf water formation are key processes driving the prevalent eddy activity. Our findings highlight the potential of innovative satellite measurements for monitoring critical Antarctic oceanic processes, and the need to resolve the abundant Antarctic ocean eddies in climate models.
DOI: 10.1093/nsr/nwag181
Source: https://dx.doi.org/10.1093/nsr/nwag181
期刊信息
National Science Review:《国家科学评论》,创刊于2014年。隶属于牛津学术数据库,最新IF:20.6
官方网址:https://academic.oup.com/nsr/issue?login=false
投稿链接:https://mc.manuscriptcentral.com/nsr_ms


