首页|A STUDY OF THE INFLUENCE OF MICROPHYSICAL PROCESSES ON TYPHOON NIDA (2016) USING A NEW DOUBLE-MOMENT MICROPHYSICS SCHEME IN THE WEATHER RESEARCH AND FORECASTING MODEL

A STUDY OF THE INFLUENCE OF MICROPHYSICAL PROCESSES ON TYPHOON NIDA (2016) USING A NEW DOUBLE-MOMENT MICROPHYSICS SCHEME IN THE WEATHER RESEARCH AND FORECASTING MODEL

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The basic structure and cloud features of Typhoon Nida (2016) are simulated using a new microphysics scheme (Liuma) within the Weather Research and Forecasting (WRF) model. Typhoon characteristics simulated with the Liuma microphysics scheme are compared with observations and those simulated with a commonly-used microphysics scheme (WSM6). Results show that using different microphysics schemes does not significantly alter the track of the typhoon but does significantly affect the intensity and the cloud structure of the typhoon. Results also show that the vertical distribution of cloud hydrometeors and the horizontal distribution of peripheral rainband are affected by the microphysics scheme. The mixing ratios of rain water and graupel correlate highly with the vertical velocity component and equivalent potential temperature at the typhoon eye-wall region. According to the simulation with WSM 6 scheme, it is likely that the very low typhoon central pressure results from the positive feedback between hydrometeors and typhoon intensity. As the ice-phase hydrometeors are mostly graupel in the Liuma microphysics scheme, further improvement in this aspect is required.

Liuma microphysics schemetyphoon intensitycloud microphysicstyphoon structureWeather Research and Forecasting model

LI Zhe (李喆)、ZHANG Yu-tao (张玉涛)、LIU Qi-jun (刘奇俊)、FU Shi-zuo (付仕佐)、MA Zhan-shan (马占山)

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Numerical Weather Prediction Center of CMA, Beijing 100081 China

National Meteorological Center, CMA, Beijing 100081 China

Department of Atmospheric and Oceanic Sciences, Peking University, Beijing 100871 China

Foundation item: Ministry of Science and Technology of ChinaNational Key Research and Development Plan Program of ChinaCMA Youth Founding ProgramCMA Youth Founding Program

2017YFC15014062017YFA0604500Q201706 NWPC-QNJJ-201702

2018

热带气象学报(英文版)
中国气象局广州热带海洋气象研究所

热带气象学报(英文版)

SCI
影响因子:0.169
ISSN:1006-8775
年,卷(期):2018.24(2)
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