CAJ | 학술논문

2013年4月19日，河北省人工影响天气办公室在河北中南部地区根据云系特点首次采用多层次水平催化和垂直验证的方式对层状云进行人工催化和探测。本文利用机载仪器所取得的飞机探测资料，结合实时天气、卫星、雷达、探空和雨量观测资料，分析了河北春季层状云增雪作业的技术指标，探讨了航测微物理参量和卫星、雷达、探空等资料在作业中的应用。结果表明：云在发展期雷达回波由15 dBZ逐步上升到25～35 dBZ，卫星反演的云顶高度、云顶温度、有效粒子半径、光学厚度等都有增加；云在中后期有效粒子半径、光学厚度、液水路径迅速下降，雷达回波同时减弱。在高度3177～5723 m之间过冷云滴达100～700个/cm3，含水量在0．01 g·m-3左右，最大0．081 g·m-3，云粒子主要在此增长，形成降水粒子，该区间适宜催化。作业后，影响区内云体发展，雷达回波增强，出现35 dBZ强回波，且强回波中心扩大；卫星反演的云顶高度、光学厚度等比对比区有明显增加。
2013년4월19일，하북성인공영향천기판공실재하북중남부지구근거운계특점수차채용다층차수평최화화수직험증적방식대층상운진행인공최화화탐측。본문이용궤재의기소취득적비궤탐측자료，결합실시천기、위성、뢰체、탐공화우량관측자료，분석료하북춘계층상운증설작업적기술지표，탐토료항측미물리삼량화위성、뢰체、탐공등자료재작업중적응용。결과표명：운재발전기뢰체회파유15 dBZ축보상승도25～35 dBZ，위성반연적운정고도、운정온도、유효입자반경、광학후도등도유증가；운재중후기유효입자반경、광학후도、액수로경신속하강，뢰체회파동시감약。재고도3177～5723 m지간과랭운적체100～700개/cm3，함수량재0．01 g·m-3좌우，최대0．081 g·m-3，운입자주요재차증장，형성강수입자，해구간괄의최화。작업후，영향구내운체발전，뢰체회파증강，출현35 dBZ강회파，차강회파중심확대；위성반연적운정고도、광학후도등비대비구유명현증가。
Artificial seeding and detection on stratiform clouds,associated with horizontal seeding and vertical verification at several al-titudes,was first performed by Hebei Weather Modification Office over central and southern Hebei according to specific cloud charac-teristics on April 19,2013.This paper uses airborne probe detection data,combined with real time synoptic,satellite,radar,air-sounding and precipitation data,to investigate technical indicators of artificial operations on stratiform clouds in spring over Hebei.The result shows that radar echo increased from 15 dBZ to 25 -35 dBZ,and cloud top height,cloud top temperature,particle effective di-ameter and optical depth retrieved from satellite also increased during the cloud development.While the particle effective diameter,op-tical depth and liquid water path dropped sharply,and radar echo weakened during the cloud dissipation stage.Number concentration and water content of supercooled cloud particles ranged from 100 to 700 cm-3 and 0.01 to 0.081 g·m-3 ,respectively,at the height of 3 177 to 5 723 m,where cloud particles mainly grew bigger to precipitation particles,which was a feasible seeding area.The strong radar echo center expanded while radar echo enhanced a maximum of 35 dBZ in the affected area where cloud developed after the see-ding operation.Satellite retrieved parameters,such as cloud top temperature and optical depth,increased significantly compared with those in the contrast area.