首页|"海棠"台风(2005)雨强差异成因分析

"海棠"台风(2005)雨强差异成因分析

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
通过对暴雨(A_1)、大暴雨(A_2)及特大暴雨(A_3)区中潜热(大尺度潜热加热和对流潜热加热)、改进的湿Q矢量(Q~*)以及地形因子(地形抬升和地表摩擦)作用的计算及对比分析,定量探讨了"海棠"台风(2005)雨强差异成因.结果表明,潜热加热在整个台风登陆过程中,基本都有助于A_2与A_1之间雨强差异形成,且在台风登陆后约1/3时段内对A_1、A_2及A_3之间雨强差异形成有明显贡献.对于Q~*矢量强迫作用,台风登陆前,仅有助于A_2与A_1之间雨强差异形成,在台风登陆后,则对A_1、A_2及A_3之间雨强差异形成贡献明显.地形因子作用在台风登陆前,仅有助于A_3与A_1、A_2之间雨强形成差异,但在台风登陆后,则有利于A_1、A_2及A_3之间雨强差异形成.
Analysis on the cause of rainfall intensity difference of typhoon Haitang (2005)
By calculating and comparing effects of condensation heating, modified moist-ageostrophic Q vector (Q~*), and topographic forcing among three categories of heavy rainfall: heavy rainfall(R_1), large heavy rainfall (R_2), and extremely heavy rainfall (R_3), the cause of rainfall intensity difference associated with typhoon Haitang (2005) is analyzed quantitatively. The results show that latent heating contributes to differences in intensity between R_1 and R_2 during the whole landfall, and among three rainfall categories after the landfall. The forcing from Q~* vector accounts for differences in intensity between R_1 and R_2 before the landfall while it contributes to differences in intensity among three rainfall categories after the landfall. The topographic lifting is responsible for differences in intensity among R_3 and R_2,R_1 before the landfall whereas it contributes to differences in intensity among three rainfall categories after the landfall.

Typhoon HaitangDifferent rainfall categoriesCause of difference in rainfall intensity

岳彩军、寿绍文、曾刚、王咏青

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中国气象局,上海台风研究所,上海,200030

中国气象局,台风预报技术重点开放实验室,上海,200030

南京信息工程大学,气象灾害省部共建教育部重点实验室,南京,210044

南京信息工程大学,大气科学学院,南京,210044

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"海棠"台风 不同级别暴雨 雨强差异成因 定量分析

国家自然科学基金国家自然科学基金国家自然科学基金气象灾害省部共建教育部重点实验室(南京信息工程大学)开放课题上海市自然科学基金中国气象局气象新技术推广重点项目

408750254087503040775033KJS060208ZR142290009A13

2010

气象科学
江苏省气象学会

气象科学

CSTPCDCSCD北大核心
影响因子：0.925
ISSN：1009-0827
年,卷(期)：2010.30(1)
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