Tripolar trends in tropical cyclone precipitation along the western rim of the western North Pacific from 1999 to 2018OA
Tripolar trends in tropical cyclone precipitation along the western rim of the western North Pacific from 1999 to 2018
西北太平洋地区在塑造东亚夏季降水模式中发挥着至关重要的作用.本研究分析了1999年至2018年期间热带气旋降水(TCP)的显著变化,揭示出明显的三极型分布模式.在中国西南部以及中国东部,TCP呈现正趋势,而在台湾岛附近则呈现负趋势.这些变化主要由TCP频率的变化和引导气流的变化所驱动.15°-25°N之间西向气流的增强将更多热带气旋导向中国西南部,增加了该区域的TCP;台湾以西的反气旋环流引导热带气旋向中国东部移动,导致该地区TCP增加.此外,有利的热力学条件有助于形成更强,持续时间更长的热带气旋,进一步增强了上述区域的TCP.相比之下,台湾以南的气旋环流阻碍了热带气旋进入该区域,从而减少了当地的TCP.本研究为全球变暖背景下TCP变化的成因提供了新的见解.
Mingyu Li;Chaoxia Yuan
State Key Laboratory of Climate System Prediction and Risk Management/Key Laboratory of Meteorological Disaster,Ministry of Education/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing,ChinaState Key Laboratory of Climate System Prediction and Risk Management/Key Laboratory of Meteorological Disaster,Ministry of Education/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing,China
热带气旋降水引导气流趋势定量归因
Tropical cyclone precipitationSteering flowTrendQuantitative attribution
《大气和海洋科学快报（英文版）》 2026 (4)
21-27,7
This study was financially supported by the National Natural Sci-ence Foundation of China[grant number 42088101],the National Key Research and Development Program of China[grant number 2022YFF0801702],and the Postgraduate Research and Practice Inno-vation Program of Jiangsu Province[grant number KYCX24_1423].
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