WRF模式不同云微物理方案对华西秋雨模拟影响

doi:10.11927/j.issn.1673-503X.2016.02.001

Abstract

Abstract: In this paper, an autumn precipitation event on September 13 to 20, 2011 over the West China was simulated using the WRF model with five different cloud microphysical parameterization schemes.The simulated results were compared and possible reasons of precipitation changes among different experiments were analyzed.The results show that every scheme can be used in the simulation of the autumn rainfall in the West China, and each of them can well generate night rain.However, the falling area of simulated rainfall and its intensity are underestimated by the Kessler cloud microphysical parameterization scheme, Simulated precipitation intensity is stronger when using the Lin scheme.In general, the main precipitation processes are simulated better with the Ferrier and WSM3 schemes.By comparing simulation results of five different cloud microphysical parameterization schemes, it is found that the precipitation intensities simulated by five schemes are of good association with the upward motion strength simulated by the WRF model.

Key words: Autumn precipitation over the West China, Numerical simulation, Cloud microphysics parameterization scheme

CLC Number:

P435

AI Kai, ZHENG Yi-qun, ZENG Xin-min, CHEN Hao-wei. Effect of different cloud microphysical parameterization schemes of WRF model on autumn precipitation over West China[J]. Journal of Meteorology and Environment, 2016, 32(2): 1-10.

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Effect of different cloud microphysical parameterization schemes of WRF model on autumn precipitation over West China

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