[张贴报告]Characteristics of ocean mesoscale eddies in the Agulhas and Tasman Leakage regions from two eddy datasets

Characteristics of ocean mesoscale eddies in the Agulhas and Tasman Leakage regions from two eddy datasets
编号:2783 稿件编号:3255 访问权限:私有 更新:2023-04-12 16:18:09 浏览:227次 张贴报告

报告开始:2023年05月07日 09:50 (Asia/Shanghai)

报告时间:1min

所在会议:[SP] 张贴报告专场 » [SP-6-1] 6、海洋地球科学

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摘要

Mesoscale eddies play an essential role in the freshwater transport, ocean circulation and climate. Although there is no completely objective eddy dataset, observations can better reproduce the eddies in the ocean as data resolution is improved and eddy detection methods are developed to some extent. This study uses satellite altimeter data and compares the Mesoscale Eddy Trajectory Atlas Product (META) with the Global Ocean Mesoscale Eddy Atmospheric-Oceanic-Biological Interaction Observational Dataset (GOMEAD) to analyze the mesoscale eddy characteristics in the oceanic pathways in the Agulhas Leakage (AL) region at the intersection of the Indian and Atlantic Oceans, and the Tasman Leakage (TL) region between the Indian and Pacific Oceans. Here we show that, the META dataset is more applicable for the detection of small-radius eddies, but this product increases the risk of over-detection. The GOMEAD dataset offers precise eddy boundaries and is useful for identifying large diameter eddies. The characteristics of eddies in the AL and TL regions are analyzed, and the results indicate that GOMEAD is more suited for eddy detection and analysis in the AL, while the META dataset is better suited for studies of mesoscale eddies of the TL region. Choosing the appropriate dataset is important for understanding the role of mesoscale eddies of different areas in a changing climate.

关键字
Ocean mesoscale eddies,Eddy dataset,Eddy characteristics,Agulhas leakage,Tasman leakage
报告人
魏兰苏
博士研究生 中国科学院南海海洋研究所

稿件作者
魏兰苏 中国科学院南海海洋研究所
WangChunzai 中国科学院南海海洋研究所
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徐 鹏(13554674258;xupengwhu@whu.edu.cn)
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王伦澈(13349889828;wang@cug.edu.cn)
庄艳华(13349889826;zhuang@apm.ac.cn)
李星华(15527964369;lixinghua5540@whu.edu.cn)
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管小彬(18007973663;guanxb@whu.edu.cn)
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