[Objective]The research aimed to analyze the first soaking rain process in Lanzhou in 2011.[Method]By diagnostic analyses on weather scale,meso-scale system and physical quantity when the first soaking rain weather ha...[Objective]The research aimed to analyze the first soaking rain process in Lanzhou in 2011.[Method]By diagnostic analyses on weather scale,meso-scale system and physical quantity when the first soaking rain weather happened in Lanzhou City in 2011,formation reason and physical quantity characteristics of the soaking rain weather were discussed.[Result]Combination of the plateau low vortex and westerly cold trough was influence system of the first soaking rain.There was a southwest-southeast airflow from Sichuan Basin to Hexi in front of the trough at 700 hPa.It was commonly referred to as ＂ inverted-buckle wind＂,and provided sufficient water vapour for occurrence and maintaining of the precipitation.Convergence at the low layer and divergence at the high layer were favourable for vertical motion.Analyses on physical quantity and meso-scale system also proved important role of the ＂ inverted-buckle wind＂ at the low layer.[Conclusion]The research provided reference for real-time forecast business of the long drought turning rain in spring.展开更多
As'China’s hometown of nonferrous metals',Chifeng City is the biggest concentration zone in Inner Mongolia’s nonferrous metals industry.Copper resources accounts for 17% of the whole region,lead resource acc...As'China’s hometown of nonferrous metals',Chifeng City is the biggest concentration zone in Inner Mongolia’s nonferrous metals industry.Copper resources accounts for 17% of the whole region,lead resource accounts for 35%,zinc resource accounts for 30%,tungsten resource accounts for 42%,tin resource accounts for 88%,molybdenum resource accounts for 15%,gold resource accounts展开更多
文摘[Objective]The research aimed to analyze the first soaking rain process in Lanzhou in 2011.[Method]By diagnostic analyses on weather scale,meso-scale system and physical quantity when the first soaking rain weather happened in Lanzhou City in 2011,formation reason and physical quantity characteristics of the soaking rain weather were discussed.[Result]Combination of the plateau low vortex and westerly cold trough was influence system of the first soaking rain.There was a southwest-southeast airflow from Sichuan Basin to Hexi in front of the trough at 700 hPa.It was commonly referred to as ＂ inverted-buckle wind＂,and provided sufficient water vapour for occurrence and maintaining of the precipitation.Convergence at the low layer and divergence at the high layer were favourable for vertical motion.Analyses on physical quantity and meso-scale system also proved important role of the ＂ inverted-buckle wind＂ at the low layer.[Conclusion]The research provided reference for real-time forecast business of the long drought turning rain in spring.
文摘As'China’s hometown of nonferrous metals',Chifeng City is the biggest concentration zone in Inner Mongolia’s nonferrous metals industry.Copper resources accounts for 17% of the whole region,lead resource accounts for 35%,zinc resource accounts for 30%,tungsten resource accounts for 42%,tin resource accounts for 88%,molybdenum resource accounts for 15%,gold resource accounts
