The localization of a duststorm source is one of the most difficult scientific problems on numerical simulation of the long distance transport process of airborne dust. Traditionally, the duststorm sources are analyzed with a chemical composition analysis method. However, sampling error and uncertainty problem of the composition variation during the large￣scale and long distance transport process in the atmosphere makes the operability of traditional method not strong. In this paper, using a new Lagrangian backward tracing method based on the observed and forecasting data of China Meteorological Administration (CMA), the numerical simulation for a duststorm event on April 9, 2003 has been analyzed. The results indicate that the main airborne dust for the duststorm event comes from Kurban Tonggute desert.
duststormbackward tracing the sourcenumerical simulationlong distance transport
NETL
NSTL
万方数据
维普
