CAJ | 학술논문

利用常规气象资料、自动站资料、卫星云图、CINRAD?SA多普勒天气雷达资料以及 NCEP 再分析资料，结合飞行探测数据，对影响2011年4月17日河北抚宁县森林大火的一次冷锋云系进行分析。结果表明：1）宏观分析，过程降水的水汽仅来自冷锋自身所携带的微弱水汽，水汽辐合值较小，不利降水；2）微观分析，冷锋层状云系在水平和垂直方向上存在较薄的过冷水云区，小粒子数浓度大于20 cm－3的云区占一定比例。飞机催化作业后，雷达回波强度增强， CAS （云气溶胶粒子探头）探测的小粒子数浓度、云含水量及粒子平均直径均有明显变化，说明该次冷锋云系有一定的增雨潜力。
이용상규기상자료、자동참자료、위성운도、CINRAD?SA다보륵천기뢰체자료이급 NCEP 재분석자료，결합비행탐측수거，대영향2011년4월17일하북무저현삼림대화적일차랭봉운계진행분석。결과표명：1）굉관분석，과정강수적수기부래자랭봉자신소휴대적미약수기，수기복합치교소，불리강수；2）미관분석，랭봉층상운계재수평화수직방향상존재교박적과랭수운구，소입자수농도대우20 cm－3적운구점일정비례。비궤최화작업후，뢰체회파강도증강， CAS （운기용효입자탐두）탐측적소입자수농도、운함수량급입자평균직경균유명현변화，설명해차랭봉운계유일정적증우잠력。
The characteristics of a cold?front cloud during the forest fire on April 17,2011 in Funing county of He?bei province, were analyzed at macro and micro scale. Meteorological data of conventional observations, satellite cloud image,Doppler weather Radar data,aircraft observation,and the NCEP reanalysis data were used to analyze the precipitation enhancement potential of this cold?front cloud.Macroanalysis shows that the water vapor carried by the cold?front cloud is the only source of the artificial precipitation enhancement,which is small in moisture conver?gence thus not favorable for precipitation. Microanalysis shows that relatively thin supercooled water area exists in both horizontal and vertical direction of the cold?front stratiform cloud system,with certain proportion of small parti?cle concentration>20 cm-3 in size.After the feeding operation,the radar echo intensity is enhanced,parameters of the particle concentration,LWC and the mean diameter of particles detected by CAS change significantly. Results show that the cold?front cloud has certain precipitation enhancement potential.