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《Journal of Anhui Agricultural Sciences》 2012-01
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Analysis on Meteorological Conditions of Artificial Precipitation Enhancement in Maqu County of Gansu Province

LI Bao-zi et al(Gansu Weather Modification Office,Lanzhou,Gansu 730020)  
This paper analyzed precipitation climate background and weather system in Maqu County of Gansu Province.The results showed that 80% of the precipitation was caused by mesoscale convective cloud cluster.To this end,it overviewed the MCSs activities characteristics of the Qinghai-Tibet Plateau,and the relationship between its large-scale environmental conditions and precipitation.It's found that the center intensity of ice water path of lower cloud layer in Qingnan Plateau and Maqu convective cloud was 223-245 g/m2,greater than its in Longnan and Southern Shaanxi.But the upper cloud layer optical depth on the contrary,it's only 8 in Maqu,it was 44% of Shaannan's and Longnan's,this was obviously related to higher altitude in plateau.Maqu large precipitation produced by convective clouds,precipitation efficiency was smaller,that was about 19%-40%.The potential of artificial precipitation enhancement was higher than its in cold front cloud band,but less than the Cuban tropical convective cloud,it was 39.7%.
【Fund】: 国家科技支撑计划项目(2009BAC53B02)
【CateGory Index】: P481
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