干旱区研究2011，Vol.28Issue(3)：514-523,10.
远距离台风影响下的陕西大暴雨分析
Analysis on the Heavy Rainstorms in Shaanxi Province in Relation to Typhoon Far Away
摘要
Abstract
This paper analyzes three rainstorms in Shaanxi Province in 21st century in relation to typhoon far a-way. The results show that there were the high-pressure systems over central-east Chinese Mainland, they made the westerly trough or plateau trough move slowly over the Great Bend of the Yellow River, the main function of typhoon was to transport a large amount of water vapor by its easterly wind, or to obstruct warm-wet air to flow eastward and drive warm and wet air to move northward into Shaanxi Province; the 200-hPa upper jet axis trend played an important role in the heavy rainstorms; the heavy rainstorms relied on the 850-hPa frontogenesis center or nearby fronto-genesis axis; the warm-wet air end of energy ratio axis of "Ω" systems in surface cold front aroused easily the me-soscale convective cloud cluster.关键词
大暴雨/台风/环流背景/水汽条件/陕西Key words
heavy rainstorm/ typhoon/ circulation background/ vapor conditions/ Shaanxi Province分类
天文与地球科学引用本文复制引用
李明,高维英,杜继稳,侯建忠..远距离台风影响下的陕西大暴雨分析[J].干旱区研究,2011,28(3):514-523,10.基金项目
陕西省气象局创新基金项目"远距离台风影响下的陕西大暴雨机理分析研究(2010M-5)" （2010M-5）
2011年中国气象局预报员专项"陕西区域性大暴雨典型个例预报技术总结(CMAYB2011-050)"和"西安多普勒天气雷达盲区强对流天气研究(2008M-16)"共同资助 （CMAYB2011-050）
