超强台风“利奇马”(1909)极端降水研究回顾
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1.中国气象科学研究院灾害天气国家重点实验室;2.中国气象局 河南省农业气象保障与应用技术重点开放实验室

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基金项目:

国家自然基金面上项目(42275037);中国气象科学研究院基本科研业务费专项基金项目(2023Z016)


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Review of Research on Extreme Precipitation Induced by Super Typhoon Lekima (1909)
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Affiliation:

1.State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Science;2.CMAHenan Key Laboratory of Agrometeorological Support and Applied Technique

Fund Project:

the National Natural Scientific Foundation of China (42275037);the Basic Research Fund of CAMS (2023Z016)

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    摘要:

    1909号台风“利奇马”是1949年至当时登陆浙江的第三强台风,影响了我国中东部大部分省份,风雨强度大、暴雨极端性显著、灾害损失严重。“利奇马”产生的降水主要影响浙江和山东两地,分别对应降水的两大阶段。为更全面地认识此次过程,从大尺度天气形势、台风自身强度、动热力因子、云微物理、水汽和能量输送以及地形等方面对“利奇马”引发的两个阶段极端降水的异同成因进行回顾总结,其中稳定的环流形势及其良好配置、充足的水汽和能量以及双台风作用均是贯穿整个极端降水过程的有利因子;台风自身高强度、地形增幅、良好的动热力条件以及云微物理过程的有利影响是造成第一阶段浙江极端降水的独特成因;而第二阶段山东极端降水独特成因是西风槽冷空气入侵和台风长时间影响,最后对“利奇马”极端降水过程进一步研究方向进行了讨论。

    Abstract:

    Typhoon Lekima (1909) is the third strongest typhoon to make landfall in Zhejiang during 1949 to 2019, affecting most provinces in central and eastern China, with high intensity of its wind and rain, significant extremity of rainstorms and serious disaster losses. The precipitation produced by Lekima mainly affected Zhejiang and Shandong, corresponding to the two major stages of the precipitation. To understand this process more comprehensively, this paper reviews and summarizes the same and different causes between two extreme precipitation stages caused by Lekima in terms of large-scale weather situation, the intensity of the typhoon, dynamic and thermal factors, cloud microphysics, transport of water vapor and energy and topography. The stable circulation and its good configuration, sufficient water vapor and energy, as well as the effect of binary typhoons are favorable factors throughout the whole extreme precipitation process. The high intensity of Lekima, the amplification by topography, good dynamic and thermal conditions and beneficial effects of cloud microphysics process are characteristic causes of the first extreme precipitation stage in Zhejiang, while characteristic causes of the second stage in Shandong are invasion by cold air from westerly trough and the prolonged effects of typhoon. Finally, the directions for further research are discussed.

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  • 收稿日期:2023-11-22
  • 最后修改日期:2024-05-24
  • 录用日期:2024-05-29
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