Analysis on the Heavy Rainstorms in Shaanxi Province in Relation to Typhoon Far Away
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.
heavy rainstormtyphooncirculation backgroundvapor conditionsShaanxi Province
国家科技期刊平台
NSTL
万方数据
维普
