CAJ | 학술논문

利用欧洲中期天气预报中心逐日客观分析资料、常规观测资料、FY2C卫星、雷达和区域加密自动站资料,对2009年6月28日夜间发生在贵州省水城县发耳乡特大暴雨天气进行分析。结果表明,2009年6月28日贵州省水城县发耳乡特大暴雨的发生,有南支槽、中低层切变和强盛的西南暖湿气流等天气条件的有效合理配置;强降水的落区与中-γ尺度云团有很好的对应关系,云团的移动、合并、发展、停滞以及减弱能很好地指示降水的落区及强度;产生于低层辐合区的强对流回波单体在位于水城县西北部的乌蒙山脉（主峰2901m）的阻挡下在发耳乡附近停滞不前,使水城县中部以南地区降水雨团合并加强,这是发耳特大暴雨形成的重要原因;发耳特殊的地形,使得其附近流场发生变化,不仅使地形性垂直上升运动加强、维持,而且也使得水汽不断向云内卷入,延长了暴雨云团在其上空的停留时间;喇叭口地形的收缩作用也加强了迎风坡的辐合上升运动;区域自动站的资料显示,中小尺度天气系统对水城县发耳乡及附近降水雨团的形成和加强起到了重要作用,并对此次特大暴雨的短时临近预报具有指示意义。
이용구주중기천기예보중심축일객관분석자료、상규관측자료、FY2C위성、뢰체화구역가밀자동참자료,대2009년6월28일야간발생재귀주성수성현발이향특대폭우천기진행분석。결과표명,2009년6월28일귀주성수성현발이향특대폭우적발생,유남지조、중저층절변화강성적서남난습기류등천기조건적유효합리배치;강강수적락구여중-γ척도운단유흔호적대응관계,운단적이동、합병、발전、정체이급감약능흔호지지시강수적락구급강도;산생우저층복합구적강대류회파단체재위우수성현서북부적오몽산맥（주봉2901m）적조당하재발이향부근정체불전,사수성현중부이남지구강수우단합병가강,저시발이특대폭우형성적중요원인;발이특수적지형,사득기부근류장발생변화,불부사지형성수직상승운동가강、유지,이차야사득수기불단향운내권입,연장료폭우운단재기상공적정류시간;나팔구지형적수축작용야가강료영풍파적복합상승운동;구역자동참적자료현시,중소척도천기계통대수성현발이향급부근강수우단적형성화가강기도료중요작용,병대차차특대폭우적단시림근예보구유지시의의。
By using ECWMF（European Centre for Medium-Range Weather Forecasts） analysis data,conventional observations,FY-2C satellites,radar stations and automatic weather station data,the heavy rain occurred on the night of 28 June 2009 in Fa＇er Village,Shuicheng County in Guizhou Province is analyzed.The results show that the occurrence of the heavy rain on 28 June 2009 in Fa＇er Village,Shuicheng County of Guizhou Province was the result of the southern branch trough,low shear and strong southwest warm air.Area of strong precipitation was in accord with middle-γ scale cloud.The movement,mergence,development,stagnation and decline of the clouds can well indicate the rainfall area and intensity.The strong convective echoes monomer resulted from the low-level convergence zone lingered around the Wumeng mountains（highest peak 2 901 m） to northwest of Shuicheng County,which merged the rain clouds to the south of the county and thus caused the heavy torrential rain.The air flow field near Fa＇er was changed because of its special terrain.It did not only strengthen and maintain terrain vertical velocity but also included more water vapor into the clouds and thus prolonged the duration time of the rainstorm cloud above Fa＇er.The trumpet shape of the terrain also strengthened the convergence upward movement.The regional AWS data shows that the small and medium-scale weather system exerted important influence on the rain in Fa＇er Village and nearby areas.It is also significant for the short-term forecast of this heavy torrential rain.