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Three-Dimensional Climatological Structures of the Arabian Sea Eddies and Eddy-Induced Flux
编号：313 访问权限：仅限参会人 更新：2024-10-11 17:42:44 浏览：188次 张贴报告

报告开始：2025年01月15日 18:20（Asia/Shanghai）

报告时间：15min

所在会场：[S60] Session 60-Indian Ocean Dynamics, Air-sea Interaction and Biogeochemical Cycles [S60-P] Indian Ocean Dynamics, Air-sea Interaction and Biogeochemical Cycles

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摘要
This study explores the spatial structure and transport characteristics of eddies in the Arabian Sea (AS) using Argo profiles and satellite measurements. The majority of eddies occur in the northern AS, especially along its northeastern boundary. In contrast, the western AS had a relatively higher eddy kinetic energy compared to the eastern part. Particularly, the strongest energetic eddies were present in the Somali Current system. The composite results revealed the evident thermohaline anomalies caused by cyclonic eddies (CEs) and anticyclonic eddies (AEs) in the upper 300 m layers. The anomalous temperature structure within CEs and AEs showed a dominant dipole structure in the near-surface layer and a monopole structure below, with maximum temperature anomalies of approximately −0.8°C and +1.0°C located at depths of 100–150 m, respectively. The composited salinity structures for CEs and AEs exhibited monopole vertical structures and sandwich-like patterns. For AEs, large positive salinity anomalies occurred at subsurface layers of 60–180m with a peak value of about 0.07, and weak negative values were observed above 60m and below 180m. A similar vertical structure but with an opposite sign operates for CEs. The composited CE and AE caused an equatorward salt flux with values of −8.1 × 104 and −2.2 × 104kg s−1, respectively. CEs caused an equatorward heat flux of −7.7 × 1011 W, and AEs induced a poleward flux of 1.5×1011 W.
关键词
the Arabian Sea,mesoscale eddy,salt and heat flux,thermohaline structure
报告人
Xutao Ni
Master Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China

稿件作者
Xinyu Lin Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China；Fujian Provincial Key Laboratory of Marine Physical and Geological Processes, Xiamen 361005, China
Yun Qiu Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China；Laboratory for Regional Oceanography and Numerical Modeling, Laoshan Laboratory, Qingdao 266061, China；Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China；Fujian Provincial Key Laboratory of Marine Physical and Geological Processes, Xiamen 361005, China
Xutao Ni Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
Wenshu Lin Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
Cherry Aung Marine Science Department, Myeik University, Tanintharyi 14052, Myanmar
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重要日期

  • 会议日期

    01月13日

    2025

    至

    01月17日

    2025

  • 09月27日 2024

    初稿截稿日期

  • 01月17日 2025

    注册截止日期

主办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
承办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
Department of Earth Sciences, National Natural Science Foundation of China
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