台风“卡努”增强的不同阶段环境场及降水非对称特征分析

doi:10.3969/j.issn.1673-503X.2025.04.008

气象与环境学报 ›› 2025, Vol. 41 ›› Issue (4): 68-78.doi: 10.3969/j.issn.1673-503X.2025.04.008

• 论文 • 上一篇

台风“卡努”增强的不同阶段环境场及降水非对称特征分析

王寒¹, 李岚¹, 滕方达², 谭政华², 张萌萌¹, 林中冠¹

1. 辽宁省气象服务中心, 辽宁沈阳 110166;
2. 辽宁省气象台, 辽宁沈阳 110166

收稿日期:2025-08-15 修回日期:2025-11-05 发布日期:2026-01-10
通讯作者: 李岚,女,正高级工程师,E-mail:dy-pisces@163.com。 E-mail:dy-pisces@163.com
作者简介:王寒,女,1992年生,工程师,主要从事天气学诊断分析和气象科普工作,E-mail:wanghandeh@sina.com。
基金资助:
中国气象局沈阳大气环境研究所和东北冷涡研究重点开放实验室联合开放基金(2024SYIAEKFMS11)和松辽流域基金(SL202407)共同资助。

Characteristics of environmental fields and asymmetric precipitation at different stages of typhoon Khanun intensification

WANG Han¹, LI Lan¹, TENG Fangda², TAN Zhenghua², ZHANG Mengmeng¹, LIN Zhongguan¹

1. Liaoning Provincial Meteorological Service Center, Shenyang 110166, China;
2. Liaoning Provincial Meteorological Observatory, Shenyang 110166, China

Received:2025-08-15 Revised:2025-11-05 Published:2026-01-10

摘要/Abstract

摘要： 利用多源观测资料对台风“卡努”强度增强的不同阶段环境场及与其密切相关的降水非对称特征进行了分析,从台风附近海表温度、高低层环流演变、水汽输送、垂直风切变等方面,对比分析了不同阶段台风强度变化的环境场特征。结果表明:台风中心附近海表温度较高、高空东西两支出流、夏季风水汽的持续供应和高低层较小的垂直切变为台风快速增强提供了有利条件,一般增强过程存在海表温度条件转差、高层出流通道减少、水汽通道断裂和整层垂直风切变增加的情况;在快速增强阶段台风内核区域出现周期性对流爆发,深对流由顺风切变方向一侧向逆风切变一侧传播,对流区域向台风中心收缩,一般增强阶段对流活动则始终维持在环境风垂直切变的左侧,这与台风中心附近动力和热力场的非对称分布密切相关。

关键词: 台风“卡努”, 快速增强, 降水非对称性特征

Abstract: Using multi-source observational data,the study analyzes the environmental fields and the asymmetric precipitation characteristics during different intensification associated related stages of typhoon Khanun.The study compared and analyzed the environmental field characteristics of typhoon intensity changes at different stages from aspects such as sea surface temperature near the typhoon,evolution of upper-level and low-level circulations,moisture transport,and vertical wind shear.The results indicate that high sea surface temperatures near the typhoon center,dual outflows in the upper levels,continuous supply of summer monsoon moisture,and relatively small vertical wind shear between high and low levels provide favorable conditions for the rapid intensification of the typhoon.Generally,during the intensification process,there are conditions such as deteriorating sea surface temperatures,reduced upper-level outflow channels,disrupted moisture transport pathways,and increased vertical wind shear throughout the atmospheric layer.During the rapid intensification stage,periodic convective bursts occur within the typhoon's inner core region,with deep convection propagating from the downshear side to the upshear side.The convective region contracts toward the typhoon center.In contrast,during the general intensification stage,convective activity remains consistently on the left side of the environmental vertical wind shear,which is closely related to the asymmetric distribution of dynamic and thermal fields near the typhoon center.

Key words: Typhoon Khanun, Rapid intensification, Asymmetric Precipitation Characteristics

中图分类号:

王寒, 李岚, 滕方达, 谭政华, 张萌萌, 林中冠. 台风“卡努”增强的不同阶段环境场及降水非对称特征分析[J]. 气象与环境学报, 2025, 41(4): 68-78.

WANG Han, LI Lan, TENG Fangda, TAN Zhenghua, ZHANG Mengmeng, LIN Zhongguan. Characteristics of environmental fields and asymmetric precipitation at different stages of typhoon Khanun intensification[J]. Journal of Meteorology and Environment, 2025, 41(4): 68-78.

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台风“卡努”增强的不同阶段环境场及降水非对称特征分析

Characteristics of environmental fields and asymmetric precipitation at different stages of typhoon Khanun intensification

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