Sandstorm is a serious natural disaster in north China. It is of great
significance to carry out relevant research to improve the forecast level of
this kind of catastrophic weather. Based on the RegCM-dust model, an
extended period numerical prediction analysis of a typical severe sandstorm
process in north China is conducted, and the results are compared with NCEP
reanalysis data and other analysis results. The results show that the regions
with high sediment discharge simulated by the model are mainly located in
southern Xinjiang, Mongolia and western Inner Mongolia. The model has a certain
forecasting ability for 10 m wind speed, but the simulated wind speed is
smaller than the reanalysis data. The changes of dust column content and total
sedimentation simulated by the model can reflect the characteristics of the
dust storm weather process. The simulated sand-dust mixing ratio
has a certain correspondence with the urban pollution index, which indicates
that the model has certain forecasting ability for the pollution weather caused
by sand-dust.