[特邀报告]The intensification of consecutive three tropical cyclones passing over a warm ocean eddy in the South China Sea

The intensification of consecutive three tropical cyclones passing over a warm ocean eddy in the South China Sea
编号:2759 稿件编号:1377 访问权限:私有 更新:2023-04-12 15:45:28 浏览:403次 特邀报告

报告开始:2023年05月08日 08:20 (Asia/Shanghai)

报告时间:20min

所在会议:[6B] 6B、海洋地球科学 » [6B-3] 6B-3 海洋地球科学

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摘要
An extremely strong and long-lasting (more than 8 months) oceanic warm core eddy existed in the South China Sea (SCS) from February–October 2010. From July–August 2010, three tropical cyclones (TCs; TC Conson, Chanthu, and Mindulle) consecutively passed over this eddy and sustained at least 21 h. The intensity change of all three TCs reached 20 kt within 24 h when they encountered this eddy. In mid-late July, tropical cyclone heat potential (TCHP) is overall stronger in the eddy region than in its surrounding region, thus TCHP plays an important role in the intensification of TC Conson and Chanthu. It is also found that the intraseasonal oscillation (ISO) and the quasi-biweekly oscillation (QBWO) can be important in favor of the further enhancement of TCs. The TCHP is too low to favor the intensity increase of TC Mindulle in late August, 2010, but weak vertical wind shear, ISO and QBWO act as key roles in the intensification of TC Mindulle.
关键字
tropical cyclone, mesoscale ocean eddy, the South China Sea, tropical cyclone heat potential, intraseasonal oscillation
报告人
王东晓
院长 中山大学

稿件作者
罗希 中山大学
杨薇 海南省气象局
杨磊 中国科学院南海海洋研究所
王东晓 中山大学
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