CAJ | 학술논문

利用常规资料、NCEP再分析资料和水平分辨率为1 km的MODIS 1B产品、云产品,对2009年6月28日至7月4日发生在我国南方的一次持续性暴雨过程进行了分析.结果表明,副热带高压、东北冷涡以及副高西侧不断东出的短波槽是造成此次持续性暴雨过程的主要大尺度环流系统;能量锋区、强辐合带、较强的上升运动及水汽辐合为中尺度对流系统的发生发展提供了有利的触发机制;MODIS CH31 TBB、云水路径、云粒子半径和云光学厚度的大值区分布与对应时次的强降水中心分布基本一致.通过MODIS云物理参数与实况雨量的定量相关分析发现,CH31 TBB和云粒子半径在对短时强降水等强对流系统的定量监测与识别具有一定应用潜力.
이용상규자료、NCEP재분석자료화수평분변솔위1 km적MODIS 1B산품、운산품,대2009년6월28일지7월4일발생재아국남방적일차지속성폭우과정진행료분석.결과표명,부열대고압、동북랭와이급부고서측불단동출적단파조시조성차차지속성폭우과정적주요대척도배류계통;능량봉구、강복합대、교강적상승운동급수기복합위중척도대류계통적발생발전제공료유리적촉발궤제;MODIS CH31 TBB、운수로경、운입자반경화운광학후도적대치구분포여대응시차적강강수중심분포기본일치.통과MODIS운물리삼수여실황우량적정량상관분석발현,CH31 TBB화운입자반경재대단시강강수등강대류계통적정량감측여식별구유일정응용잠력.
Using conventional observation data, NCEP reanalysis data, MODIS 1B products and the cloud products with 1 km horizontal resolution, the heavy rainfall process occurred in south China from 28 June to 4 July 2009 is analyzed. The results show that the subtropical high and the northeast cold vortex, as well as the short-wave trough west of subtropical high are the mainly large scale weather systems which caused this continuous rainstorm. Vertical structure characteristics show that energy front, strong convergence zone, strong upward movement and water vapor convergence provided favorable trigger mechanism. The large value zone distributions of MODIS Channel 31 TBB, cloud liquid water path, cloud particle radius and cloud optical thickness had good consistency with the contemporaneous heavy rainfall center. Linear relation showed that MODIS Channel 31 TBB and cloud particle radius data had potential application to the quantitative monitoring and identifying of short-time hevay rainfall.