CAJ | 학술논문

利用河南濮阳 CINRDA/SB 多普勒雷达探测资料，结合常规天气图资料、地面加密自动站资料等，对2009年7月16日发生在河南濮阳的龙卷天气过程进行诊断分析，结果表明：这次龙卷天气过程发生在副热带高压边缘西北侧、低空急流左前方的暖切变线附近；龙卷发生前大气环境具有较大的对流不稳定能量，低层存在大的风垂直切变和丰富的水汽；多普勒雷达反射率因子图上表现为移动的弓形回波北段强烈发展形成钩状回波，龙卷生成于钩状回波弱回波区附近。径向速度图上表现为在大范围入流风场中出现伴有辐合的γ中尺度气旋式涡旋，涡旋进一步发展加强导致其中央龙卷涡旋的产生，产生龙卷风天气。另外，强回波、低回波顶高、低层强垂直风切变都是这次龙卷过程中多普勒雷达产品特征。
이용하남복양 CINRDA/SB 다보륵뢰체탐측자료，결합상규천기도자료、지면가밀자동참자료등，대2009년7월16일발생재하남복양적룡권천기과정진행진단분석，결과표명：저차룡권천기과정발생재부열대고압변연서북측、저공급류좌전방적난절변선부근；룡권발생전대기배경구유교대적대류불은정능량，저층존재대적풍수직절변화봉부적수기；다보륵뢰체반사솔인자도상표현위이동적궁형회파북단강렬발전형성구상회파，룡권생성우구상회파약회파구부근。경향속도도상표현위재대범위입류풍장중출현반유복합적γ중척도기선식와선，와선진일보발전가강도치기중앙룡권와선적산생，산생룡권풍천기。령외，강회파、저회파정고、저층강수직풍절변도시저차룡권과정중다보륵뢰체산품특정。
Using Puyang CINRDA/SB Doppler radar detection data,conventional data,intensive operation-al data,this paper analyzed a tornado process that occurred in Puyang on 16 July 2009.The diagnostic re-sults show that the tornado occurs in the northwest of subtropical high edge,the left front of low-level jet and near the warm shear line.Before the tornado there are powerful convective instability energy in atmos-pheric environment,and large wind vertical shear and abundant water vapor in lower levels.In the Doppler radar reflectivity factor chart,the north of mobile bow echo is strongly developed into hooked echo,and the tornado is detected near the weak-echo area.Radial velocity diagram shows there is a meso-γscale cy-clonic vortex field with convergence.The strengthened vortex leads to the central tornado vortex,produ-cing the tornado weather.In addition,the strong echo,low echo top high,lower strong vertical wind shear are all the characteristics of Doppler radar products.