Plateau Meteorology

Plateau Meteorology >

2020 , Vol. 39 >Issue 1: 48 - 57

DOI: https://doi.org/10.7522/j.issn.1000-0534.2019.00062

Numerical Simulation of Cloud Precipitation and Cloud Microphysical Process in Nagqu Area on August 7, 2014

  • Shucheng YIN ,
  • Maoshan LI ,
  • Xiaoran LIU ,
  • Xingyu SONG ,
  • Zhao Lü ,
  • Lei SHU ,
  • Lingzhi WANG ,
  • Wei FU
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  • School of Atmospheric Sciences/Plateau Atmosphere and Environment Key Laboratory of Sichuan Province/Joint Laboratory of Climate and Environment Change, Chengdu University of Information Technology, Chengdu 610225, Sichuan, China

Received date: 2019-04-11

  Online published: 2020-02-28

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Abstract

This paper used the mesoscale model WRF to simulate a convective cloud precipitation process in the Nagqu area of the Qinghai-Tibetan Plateau from August 7 to August 8, 2014.The WRF model can better simulate the precipitation, rainfall center and rainfall level of the convective cloud precipitation process in the Nagqu area.The simulation results show that the phase particles are distributed in different height layers, and the distribution position has no obvious change with time.The change of mass density with time can basically reflect the characteristics of ground precipitation changes.The simulated source of rain, snow and graupel indicates that cloud water contributes the most to precipitation.The process of condensation and collision is the main process of snow and graupel growth.The combination of smelting and cloud water accelerates the movement of cloud water to rainwater.Transform to make precipitation on the ground.It can be seen from the evolution characteristics of cloud microphysical processes over time that the ice phase particle process plays an important role in the process of plateau precipitation.In the whole process, graupel plays an important role in the formation of precipitation cloud water and rain water also play an important role in the formation of graupel.

Key words： Qinghai-Tibetan Plat; convective cloud pre; cloud microphysics; numerical simulation

Cite this article

Shucheng YIN , Maoshan LI , Xiaoran LIU , Xingyu SONG , Zhao Lü , Lei SHU , Lingzhi WANG , Wei FU . Numerical Simulation of Cloud Precipitation and Cloud Microphysical Process in Nagqu Area on August 7, 2014[J]. Plateau Meteorology, 2020 , 39(1) : 48 -57 . DOI: 10.7522/j.issn.1000-0534.2019.00062

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