CAJ | 학술논문

利用常规观测资料、NCEP资料、多普勒雷达风廓线产品、雷达单测风资料以及FY-2C红外云图，综合分析了2011年5月9日豫西山区的一次短时大暴雨过程，结果表明：500hPa河套地区的西风槽、对流层中低层的低涡切变线、地面冷锋是天气尺度的主要影响系统。入侵冷空气与对流层低层暖湿气流的交汇，为暴雨的发生提供了有利的不稳定条件和触发机制。高空风资料中，600hPa以下西南风或偏南风场的建立，对强降水的出现有警示作用；而600hPa风速突增到10m／s以上，可以作为暴雨出现的信号。云顶亮温tbb迅速下降可作为豫西山区强降水出现的指标。
이용상규관측자료、NCEP자료、다보륵뢰체풍곽선산품、뢰체단측풍자료이급FY-2C홍외운도，종합분석료2011년5월9일예서산구적일차단시대폭우과정，결과표명：500hPa하투지구적서풍조、대류층중저층적저와절변선、지면랭봉시천기척도적주요영향계통。입침랭공기여대류층저층난습기류적교회，위폭우적발생제공료유리적불은정조건화촉발궤제。고공풍자료중，600hPa이하서남풍혹편남풍장적건립，대강강수적출현유경시작용；이600hPa풍속돌증도10m／s이상，가이작위폭우출현적신호。운정량온tbb신속하강가작위예서산구강강수출현적지표。
The rainstorm process on May 9, 2011 in western mountainous area of Henan was com- prehensively analyzed by using conventional observational data, NCEP data, wind profile products and single-measured data of Doppler radar and FY - 2C infrared cloud images. The results show that the west-erly trough at 500 hPa Hetao area, low vortex shear line in middle and lower troposphere and ground cold front are the main influencing system of the synoptic scale. The intersection of the intruded cold air and the warm and wet airflow in low troposphere has provided favorable instable conditions and trigger mecha-nism for the rainstorm occurrence. In the upper wind data, the establishment of southwester or southerly wind field at 600 hPa has caution effect for strong precipitation appearance. The 600 hPa wind speed is abrupt above 10 m/s, which can be used as a signal for storm appearance. The sharp decrease of tbb can be used as index of strong precipitation appearance in western mountainous area of Henan.