气象与环境学报2025，Vol.41Issue(4)：68-78,11.DOI:10.3969/j.issn.1673-503X.2025.04.008
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
摘要
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,mois-ture transport,and vertical wind shear.The results indicate that high sea surface temperatures near the typhoon cen-ter,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,re-duced 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,convec-tive 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.关键词
台风"卡努"/快速增强/降水非对称性特征Key words
Typhoon Khanun/Rapid intensification/Asymmetric Precipitation Characteristics分类
天文与地球科学引用本文复制引用
WANG Han,LI Lan,TENG Fangda,TAN Zhenghua,ZHANG Mengmeng,LIN Zhongguan..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):68-78,11.基金项目
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. （2024SYIAEKFMS11）
