摘要
为了对西藏地区冰雹天气有更多的认识,利用三维冰雹云模式对2007年和2008年两年发生在那曲地区的冰雹天气进行了数值模拟,并以2008年8月22日发生在那曲的冰雹天气为个例进行了分析,同时探讨三维冰雹云模式在西藏地区的适用性问题。结果显示:模式能够较好地反映云体发展进程中的宏观动力学过程以及微物理过程。宏观方面:能够模拟出冰雹云发生、发展、成熟、消散的过程;微物理方面:能够模拟出各阶段的水汽混合比。模式能够应用于对西藏地区冰雹天气的研究;考虑冰项过程时,模拟的云体发展更强盛,云顶高度抬高,模拟时间更长;固态水成物粒子的积累过程和融化过程对降水有重要贡献;模式模拟的冰雹直径对预报冰雹直径有一定参考价值。
In order to learn more about the hail weather in Tibet,this text has utilized the three-dimensional hail cloud mode to simulate hail weather in naqu from 2007 to 2008,and analyzed the hail weather that happened in naqu on August 22,2008,also discussed the applicability of the three-dimensional hail cloud mode in Tibet.The result reveals：the model can reflect the development in the process of cloud macro-body dynamics and the micro-physical processes;the body of cloud of simulation develops more prosperous and powerfully,the height of cloud raises higher,imitate time longer;the accumulation course and melting process of solid water make important contribution to precipitation.Model simulation of hail diameter has a certain reference value for the forecast of hail.
出处
《成都信息工程学院学报》
2010年第5期511-517,共7页
Journal of Chengdu University of Information Technology
基金
中国科学院知识创新工程领域前沿项目(IAP09314)
关键词
强对流
气象学
数值天气预报
那曲
冰雹
severe convective weather
meteorology
numerical weather prediction
naqu
hail
