| 人工增雨降温机理的数值模拟研究: 对流云个例试验 |
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| 引用本文： | 陈宝君,宋娟.人工增雨降温机理的数值模拟研究: 对流云个例试验[J].气象科学,2006,26(1):47-52. |
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| 作者姓名： | 陈宝君 宋娟 |
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| 作者单位： | 1. 南京大学大气科学系中尺度灾害性天气教育部重点实验室,南京,210093
2. 江苏省人工影响天气办公室,南京,210008 |
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| 基金项目： | 南京大学校科研和教改项目;江苏省自然科学基金 |
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| 摘 要： | 为减轻夏季用电负荷,2004年我国许多省市实施了碘化银催化增雨降温作业。本文利用数值模拟方法讨论了强对流云(冰雹云)催化降温的机理。模拟结果表明,实施碘化银催化后,地面降雨量增加、降雹量减少、地面温度降低。催化使得云中冰晶、霰和雨水的含量增加,造成云雨蒸发、霰的融化(蒸发)及冰晶升华量增加,从而使空气温度降低。
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| 关 键 词： | 对流云 碘化银 催化降温 云的微物理过程 |
| 收稿时间： | 2004-11-08 |
| 修稿时间： | 2005-03-20 |
MODELING STUDY OF AGI SEEDING OF CONVECTIVE CLOUD FOR DECREASING AIR TEMPERATURE |
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| Chen Baojun and Song Juan.MODELING STUDY OF AGI SEEDING OF CONVECTIVE CLOUD FOR DECREASING AIR TEMPERATURE[J].Scientia Meteorologica Sinica,2006,26(1):47-52. |
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| Authors: | Chen Baojun and Song Juan |
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| Institution: | 1Key Laboratory of Meso-scale Severe Weather of Education Ministry , Nanj ing University , Nanj ing 210093;2Weather Modification Office of J iangsu Province ,Nanjing 210008 |
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| Abstract: | Numerical simulations were conducted to understand the mechanism of silver iodide seeding on decreasing air temperature in convective clouds.The results show that accumulated rain on the ground is increased,hail decreased and air temperature near ground decreased as a result of seeding.Seeding caused increasing in cloud ice,graupel and rain water content.Air temperature is decreased as a result of increasing amounts in evaporation from cloud and rain water,melting and evaporation from graupel and sublimation from cloud ice by seeding. |
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| Keywords: | Convective clouds Air temperature decreased by AgI seeding Cloud microphysics |
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