%0 Journal Article
%T Numerical Simulation of the Impacts of Ice Nucleus Spectra on Cloud Seeding Effects in Convective Storm Clouds<br>大气冰核谱分布对对流风暴云人工催化影响的数值模拟研究
%A XIAO Hui
%A YANG Huiling
%A HONG Yanchao
%A GUO Chunwei
%A TANG Qi
%A LI Aixun
%A <br>肖辉
%A 杨慧玲
%A 洪延超
%A 郭淳薇
%A 唐琪
%A 李蔼恂
%J 气候与环境研究
%D 2012
%I 
%X A comprehensive field observation was conducted in the Qinghai artificial weather modification experiment base located in Henan County, Qinghai Province, China, in September 2002. On the basis of ice nucleus data obtained by this field observation, combined with two commonly used ice nucleus data, the effects of three different atmospheric ice nucleus spectra on cloud seeding in convective storm clouds are examined in this paper by using the fully elastic three-dimensional convective storm model (IAP-CSM3D). The differences in cloud-seeding trajectories of RYI-6300- and WR-1B-type rockets commonly used by domestic weather departments are considered. The simulation results show that the ice nucleus spectrum has a significant impact on the macro- and microstructures of strong convective clouds. Moreover, the seeding effects of these clouds differ significantly with various ice nucleus spectra. When the ice nucleus number concentration is low at high-temperature levels and high at low-temperature levels in the atmospheric environment, seeding in convective storms will lead to excessive ice crystals, which has a negative effect on the precipitation of convective storm clouds. When the ice nucleus number concentration is higher at high-temperature levels and lower at low-temperature levels in the environment, the seeding effect in convective storm clouds is the greatest. The physical explanations for these differences are given in this paper. When ice nucleus spectra were observed in the Qinghai experiment area, rocket seeding in convective storm clouds had a certain effect in rain enhancement. A clear understanding of the background status of ice nuclei is critical for proper assessment of cloud-seeding effects when conducting artificial weather modification experiments.
%K Convective storm cloud
%K Ice nucleus
%K Artificial seeding experiment
%K Numerical simulation<br>对流风暴云
%K 大气冰核
%K 人工催化
%K 数值模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=484C10BAB5333C14751916EACFF8295F&aid=DC0994A58AFB6AE9EE9D879D7E445F00&yid=99E9153A83D4CB11&vid=BCA2697F357F2001&iid=B31275AF3241DB2D&sid=07034C6B9EA4A53C&eid=BCCCE1B88B87184D&journal_id=1006-9585&journal_name=气候与环境研究&referenced_num=1&reference_num=28