A Regional Snowstorm Process in the Eastern Tibetan Plateau in October 2008 and Climatic Background Analysis
A very severe and unusual snowstorm occurred in the eastern Tibetan Plateau during 26～28October 2008. The climatic background, circulation situation and physical diagnostic analysis of this snowstorm are analyzed using MICAPS data, T213 product and NCEP data. The result shows that the 500 hPa circulation situation of the snowstorm occurred in the east of Tibetan Plateau can be classified into three types, namely, north vortex-south trough pattern, subtropical high pattern of West Pacific Ocean, southnorth trough battern, and the regional snowstorm process is subtropical high pattern of West Pacific Ocean. It also can be seen clearly from the infrared cloud image that the tropical depression from the Bengal Bay is the main influencing weather system of the snowstorm with sufficient water vapor supply. What's more, the strong water convergence and ascending motion both play a very important role in this extreme climate event.
The eastern Tibetan PlateauSnowstormClimatic backgroundCirculation situationPhysical diagnostic analysis
NETL
NSTL
万方数据
维普
