Analysis of a turning cold wave in Northern Xinjiang in winter | 冬季北疆一次转折性寒潮天气分析
2009
Bai Huixing, Xinjiang Meteorolgical Observatory, Urumqi (China) | Xiao Shujun, Xinjiang Meteorolgical Observatory, Urumqi (China) | Rouzi aji, Xinjiang Meteorolgical Observatory, Urumqi (China)
Based on analyzing the circulation development of 100 hPa, 500 hPa, lower streamline field and the change of physical variables, the diagnostic analysis of a turning cold wave process in northern Xinjiang from Feb. 10-13th 2009 was carried out. The results showed that abnormality of 100 hPa polar vortex taking on stable two waves, catastrophe of 500 hPa western Siberian trough, strong cold advection and water vapor transport from middle Asia are chief reasons of the process.
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