【作者】 张葵； 李愉； 孙磊； 黄文诗； 杨东； 旷云米；

【Author】 Zhang Kui;Li Yu;Sun Lei;Huang Wenshi;Yang Dong;Kuang Yunmi;Chengdu Meteorological Bureau;Dayi Meteorological Bureau;

【机构】 成都市气象局； 大邑气象局；

【摘要】 本研究选取成都地区2008-2012年的区域性暴雨天气过程,根据降水性质分为对流性强降水、稳定性强降水和混合性强降水,利用成都地区GPS水汽资料,计算研究各种类型强降水的降水效率特征。研究结果表明:混合性强降水的过程降水效率最大,其次为稳定性强降水,最小的为对流性强降水。降水效率与降水量的关系最密切,降水效率越大则降水量越大。本地水汽与降水量正相关。外来水汽对降水效率和降水量的贡献远远大于本地水汽的贡献。外来水汽与本地水汽之间关系不明显。运用本研究结果可对降水情况及人工增雨潜力进行预估,为预报服务提供科学的参考。更多还原

【Abstract】 This paper selects Chengdu 2008-2012 regional rainstorm process, according to the nature of precipitation divided into strong convective precipitation, stability heavy rainfall and mixed precipitation, use of GPS water vapor data to calculate and study precipitation efficiency characteristics of various types of heavy rainfall. The results show that: maximum precipitation efficiency of mixed precipitation, followed by stability heavy rainfall and the minimum for the strong convective precipitation. Relationship between the precipitation efficiency and precipitation is most closely. Precipitation efficiency is greater and precipitation will be greater. Local water vapor positively correlated with precipitation. The contribution of foreign water vapor to precipitation efficiency and precipitation is far greater than the contribution of the local water vapor. The relationship between foreign and local water vapor is not obvious. This study can be applied to the prediction of precipitation and artificial precipitation enhancement potential to provide scientific reference for forecasting service.更多还原