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台风“凤凰”登陆过程的高分辨率数值模拟及其降水的诊断分析

周冠博 崔晓鹏 高守亭

大气科学2012,Vol.36Issue(1):23-34,12.
大气科学2012,Vol.36Issue(1):23-34,12.

台风“凤凰”登陆过程的高分辨率数值模拟及其降水的诊断分析

The High-Resolution Numerical Simulation and Diagnostic Analysis of the Landfall Process of Typhoon Fungwong

周冠博 1崔晓鹏 1高守亭1

作者信息

  • 1. 中国科学院大气物理研究所,北京 100029
  • 折叠

摘要

Abstract

By using non-hydrostatic WRF (Weather Research Forecast) model, the landfall process of typhoon Fun-gwong are simulated in high resolution. The simulation is triple nesting with the highest resolution of 3 km and integrated 120 hours (5 days). The authors also carried out careful comparison between the simulation results and the real situation (the conventional and unconventional observational data). The results show that the WRF model successfully simulated the development and landfall process of typhoon Fungwong. The simulated path is quite consistent with the observed one. At the same time the model also successfully showed the evolution process and the feature of main radar echo in the whole simulation period, the simulation is successful. Further more, with the high-resolution simulated data the authors carried out diagnosis analysis of |Q| to the landing process of typhoon. It shows that the abnormal value area of |Q| always cover the rainfall area in the whole period, they have the similarspatial distributions and time evolution trends. And | Q | shows strong signals in the rainfall area and shows weak ones in the non-rainfall area. To sum up, |Q| has good indicative meanings to forecast of the strong precipitation.

关键词

台风/登陆/数值模拟/散度垂直通量

Key words

typhoon/landfall process/numerical simulation/divergence vertical flux

分类

天文与地球科学

引用本文复制引用

周冠博,崔晓鹏,高守亭..台风“凤凰”登陆过程的高分辨率数值模拟及其降水的诊断分析[J].大气科学,2012,36(1):23-34,12.

基金项目

国家重点基础研究发展计划项目2009CB421505,国家自然科学基金海峡两岸合作研究项目40921160379,公益性行业(气象)科研专项GYHY200906001 (气象)

大气科学

OA北大核心CSCDCSTPCD

1006-9895

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