CAJ | 학술논문

分析不同云天条件时的水汽含量及其变化,可以对人工增雨作业时机及效果评估提供有价值的信息.应用2005年11月海口市地基GPS遥感大气水汽含量资料、逐时降水资料分析了大气水汽含量在不同云天条件下的特征与实际降水的对应关系以及不同降水云系的降水效率.结果表明:GPS反演的水汽含量与探空计算得到的水汽数据具有较好的一致性,同时水汽含量值与地面降水吻合较好.在海南岛冬季三类热带降水云中,积雨云水汽含量最大,降水期间变化幅度也最大,浓积云次之,最低是蔽光层积云.海南岛冬季降水云的自然降水效率不高,空中水汽约97.6%不能转化降落到地面,有一定的人工增雨潜力.
분석불동운천조건시적수기함량급기변화,가이대인공증우작업시궤급효과평고제공유개치적신식.응용2005년11월해구시지기GPS요감대기수기함량자료、축시강수자료분석료대기수기함량재불동운천조건하적특정여실제강수적대응관계이급불동강수운계적강수효솔.결과표명:GPS반연적수기함량여탐공계산득도적수기수거구유교호적일치성,동시수기함량치여지면강수문합교호.재해남도동계삼류열대강수운중,적우운수기함량최대,강수기간변화폭도야최대,농적운차지,최저시폐광층적운.해남도동계강수운적자연강수효솔불고,공중수기약97.6%불능전화강락도지면,유일정적인공증우잠력.
Using the data of water vapor detected by ground-based GPS and hourly precipitation in Haikou, Hainan in November 2005, the characters of water vapor under different cloud conditions and its relation with precipitation were analyzed, and the precipitation efficiency under different cloud conditions was also estimated. Results show that there is little difference between water vapor content detected by ground-based GPS and that calculated from radiosonde data, and that the water vapor content fits well with the precipitation. Of the three tropical precipitation clouds in winter in Hainan the water vapor content is the highest in cumulonimbus and varies most greatly during precipitation, the second highest in cumulus congestus and the lowest in stratocumulus opacus. The precipitation clouds in winter in Hainan do not precipitate efficiently(less than 2.4%), and about 97.6% of water vapor can not precipitate and hence has some potential for cloud seeding.