关键词: 沙尘暴, 天气实况, 天气气候成因, 空气污染

Abstract: A strong and rapid sandstorm weather process occurred on the 31 December 2000 in North China. It has been initially discussed in respect of real weather, synoptic climatological cause and air pollution through making use of real time and historical routine weather and air polluting data. The initial results show that: (1) the downdrive of momentum of high-level jet stream was the energetic base of this sandstorm weather process; (2) plentiful sand source on dry and soft topsoil that caused by the drier weather before sandstorm process was the substance base; (3) the occurring of sandstorm weather exaggerated air pollution of cities in North China, and the concentration of air pollutant increased by 100%~300% in the process.

Key words: sandstorm, real weather, climatological cause, air pollution