CAJ | 학술논문

利用高空地面观测资料、濮阳站多普勒雷达资料和NCEP6h一次的1°×1°再分析资料，从天气形势、物理量分布特征、不稳定能量、雷达回波演变等方面，分析了2009年6月6日新乡夏季一次短时强降水天气过程演变和成因。结果表明：前期中低层受自西南地区延伸的暖舌影响持续增温，有利于不稳定能量的累积，上游高空槽携冷空气东移南下，中低层东北冷涡后部和近地面有冷空气入侵，激发不稳定能量，产生本次强对流天气。分析还发现，低层θse高能区、水汽通量大值区、强辐合上升区等物理量场与强对流天气区有较好的对应关系。
이용고공지면관측자료、복양참다보륵뢰체자료화NCEP6h일차적1°×1°재분석자료，종천기형세、물리량분포특정、불은정능량、뢰체회파연변등방면，분석료2009년6월6일신향하계일차단시강강수천기과정연변화성인。결과표명：전기중저층수자서남지구연신적난설영향지속증온，유리우불은정능량적루적，상유고공조휴랭공기동이남하，중저층동북랭와후부화근지면유랭공기입침，격발불은정능량，산생본차강대류천기。분석환발현，저층θse고능구、수기통량대치구、강복합상승구등물리량장여강대류천기구유교호적대응관계。
Using high-altitude ground observation data, the Puyang station Doppler radar data and the NCEP 6 h 1°×1°reanalysis data, from the weather situation, physical field distribution characteris-tics, unstable energy and the radar echo evolution, this paper analyzes the process evolution and causes of the short-term strong precipitation on June 6, 2009 in Xinxiang. The results showed that : by the influ-ence of the warm tongue extending from the southwest, the middle and low-level continued warming which is conducive to the accumulation of unstable energy. The cold air came from the upper eastward to the south, which invaded in the lower back of the northeast cold vortex and near-surface. These factors stim-ulated the unstable energy, resulting in severe convective weather. The analysis also found that it was a good correlation between severe convective weather areas and the physical field of high energy region in the lower θse, water vapor flux large values region, and the strong convergence rise region.