CAJ | 학술논문

应用常规气象观测及地面加密自动站观测资料、FY－2E红外云图、NCEP再分析资料和多普勒雷达资料，对2012年7月9日山东南部一次大暴雨过程进行诊断分析。结果表明：这次鲁南大暴雨发生在“2高对峙”的环流形势下；高、低空急流的位置和强弱影响大暴雨的落区和降水强度大小；地面β中尺度气旋的发生发展是造成本次大暴雨的最直接原因；贝加尔湖以西高压系统加强引导其北部的干冷空气南下进入鲁南地区是地面辐合加强生成初始β中尺度气旋的触发机制；冷暖空气在暴雨区汇合并触发不稳定能量释放是造成本次大暴雨的根本原因；多普勒雷达VWP产品可以很好地捕捉冷暖空气的活动情况。
응용상규기상관측급지면가밀자동참관측자료、FY－2E홍외운도、NCEP재분석자료화다보륵뢰체자료，대2012년7월9일산동남부일차대폭우과정진행진단분석。결과표명：저차로남대폭우발생재“2고대치”적배류형세하；고、저공급류적위치화강약영향대폭우적락구화강수강도대소；지면β중척도기선적발생발전시조성본차대폭우적최직접원인；패가이호이서고압계통가강인도기북부적간랭공기남하진입로남지구시지면복합가강생성초시β중척도기선적촉발궤제；랭난공기재폭우구회합병촉발불은정능량석방시조성본차대폭우적근본원인；다보륵뢰체VWP산품가이흔호지포착랭난공기적활동정황。
Diagnostic analysis on the torrential rain process on 9 July 2012 in southern region of Shandong Province was made by using conventional meteorological data,the intensive observations of automatic weather station,FY-2E satellite images,NCEP reanalysis da-ta and Doppler weather radar. The results show that the heavy rain occurred under the circulation form of“two high confrontation”. The location and intensity of the upper and lower-level jet streams influenced rainstorm area and rainfall intensity. The occurrence and development of ground meso-β scale cyclone was the direct cause of the torrential rain. The strengthening of the high pressure system over the west of Lake Baikal guided the cold and dry air from its north into southern area of Shandong,which cased ground convergence to strengthen and triggered the initial meso-β scale cyclone generating. Cold and warm air over the storm area merged and triggered the release of unstable energy,which directly resulted in the torrential rain. The VWP product of Doppler radar could be a good catch for cold and warm air activities.