CAJ | 학술논문

利用高空和地面观测资料、WRF数值模式和IHR_LAPS系统资料,对2011年6月15日特大暴雨过程的环境场及物理量特征进行综合分析,结果表明：（1）低涡切变线、中高层冷温槽,以及与高空急流的合理配置,加强了暴雨区垂直环流发展,使降水区形成高空辐散、低空辐合的流场特征,促进了强降水的产生;（2）低层强而持续的水汽输送是产生强降水和大暴雨必需的水汽条件;（3）强降水区域对流有效位能大值区与暴雨中心相对应,对流有效位能的时空变化能较好地反映暴雨的时空演变特征;（4）地面温度密集区的存在,温度梯度锋稳定少动,有利于地面中尺度辐合的形成、发展和维持,有利于强降雨的发生;（5）暴雨产生在中低层螺旋度中心和不稳定能量高能区中,局地螺旋度大值中心的高低层耦合叠加且持续,对暴雨的落区及预报有指示意义。
이용고공화지면관측자료、WRF수치모식화IHR_LAPS계통자료,대2011년6월15일특대폭우과정적배경장급물리량특정진행종합분석,결과표명：（1）저와절변선、중고층랭온조,이급여고공급류적합리배치,가강료폭우구수직배류발전,사강수구형성고공복산、저공복합적류장특정,촉진료강강수적산생;（2）저층강이지속적수기수송시산생강강수화대폭우필수적수기조건;（3）강강수구역대류유효위능대치구여폭우중심상대응,대류유효위능적시공변화능교호지반영폭우적시공연변특정;（4）지면온도밀집구적존재,온도제도봉은정소동,유리우지면중척도복합적형성、발전화유지,유리우강강우적발생;（5）폭우산생재중저층라선도중심화불은정능량고능구중,국지라선도대치중심적고저층우합첩가차지속,대폭우적락구급예보유지시의의。
Using the sounding data,surface meteorological observations,WRF numerical model and IHR_LAPS data,potential conditions of environmental field and physical characteristics were analyzed during the heavy rain on June 15,2011.The results showed that：（1）Vortex shear line,the high-level cold temperature slots,and compositional with jet stream,developed the vertical circulation of the heavy rain area,produced the characteristics with upper level divergence and low level convergence,make precipitation strengthening.（2）Plentiful vapor leaded to the strong precipitation and heavy rain.（3）The high value of CAPE corresponding with the rainstorm center,the space-time evolvement of CAPE showed the space-time evolvement characteristics of the heavy rain.（4）The ground stable temperature front was useful for the development of the mesoscale convergence,as well as the heavy rain occurred.（5）Both the low-rise spiral degrees center and high value of CAPE were the areas where the heavy rain occurs.The high value of local spiral degrees compositional with numerous lays,it was significant for the heavy rain forecast.