| Abstract: | Systematical analyses of spring sandstorms in 2000 affecting Beijing area are carried out. Results revealed the key dynamic
mechanisms of dust storm during its mobilization, lifting, horizontal advection and deposition processes. It turns out that
in the processes of sandstorms influencing Beijing area in March–April 2000, the dynamic conditions for dust mobilization
are significantly correlated with phenomena, such as cold air-related climatic activities, clay soils area of North China
and surface friction velocity anomaly. The characteristics of sandstorm can be described by composite mode of dust particles
mobilization-lifting-long-range transport. This paper will provide scientific evidences for further studies, prediction and
harness of sandstorms in China. |
