Distribution and variation of the aerosol over the Qinghai-Tibet Plateau

Aerosol particles not only absorb and scatter solar radiation so that affect directly the energy budget in the earth-atmosphere system, but also affect the formation and development of clouds to affect indirectly the energy balance in the earth-atmosphere system. The HALOE satellite data was used to analyze the aerosol over Qinghai-Tibet Plateau and interview its distribution, vertical profile, seasonal changes, interannual changes. The results show that the distribution is different at different layer in the stratosphere. The concentration of aerosols first decreases and then increases with the latitude. There is a minimum at about 100hPa. Its concentration has obvious seasonal change at different layers. In the low stratosphere, it is highest in winter and lowest in summer. At the same time it is highest in summer and lowest in winter in upper stratosphere. It can be found that the annual change of aerosols has some differences at different altitude. The aerosol decrease is more distinct at 10hPa in the upper stratosphere. While the decrease trend of aerosol is relatively weaker at 100hPa in the lower stratosphere.