大气科学Issue(6)：1095-1110,16.DOI:10.3878/j.issn.1006-9895.1412.14260
雷暴中雷电活动与WRF模式微物理和动力模拟量的对比研究
Comparative Study on the Lightning Activities and Microphysical and Dynamical Quantities in a Thunderstorm Simulated by the Weather Research and Forecasting Model
摘要
Abstract
A typical severe convective weather system with cloud-to-ground (CG) lightning flashes over the Chengdu area was simulated using the WRF model. Comparative analysis of the simulated output fields in the electrification processes of the system from the WRF-simulated and observed CG flashes was performed. The correlations of CG flashes with different microphysical and dynamical factors based on the charge separation mechanisms of microphysics were also discussed. The results showed that the temporal evolution characteristics of the maximum mass mixing ratios of ice crystal, snow crystal and graupel between−10°C and−20°C, the region of charge separation, were nearly consistent with the maximum observed CG flashes rates. In the middle and late periods of lightning activity, the correspondence between the location of the maximum mass mixing ratios of the three kinds of hydrometeors and the locations of the maximum CG flash rates was better. They indicated the maximum areas of CG flashes. The maximum vertical velocity and the storm relative helicity (SRH) also revealed the temporal evolution trends of the CG flash rate. The SRH indicated the distribution of CG flashes. The simulated dynamic and microphysical outputs indicated the location and time of observed CG flashes, suggesting that the increasingly mature WRF model is potentially very useful for the research and forecasting of thundery weather.关键词
WRF模式/地闪/微物理/动力Key words
Weather Research and Forecasting model/Cloud-to-ground lightning/Microphysics/Dynamics分类
天文与地球科学引用本文复制引用
黄蕾,周筠珺,谷娟,柳臣中,向钢..雷暴中雷电活动与WRF模式微物理和动力模拟量的对比研究[J].大气科学,2015,(6):1095-1110,16.基金项目
国家重点基础研究发展计划（973计划）项目2014CB441401，北京市自然科学基金重点项目8141002，中科院寒旱区陆面过程与气候变化重点实验室2013年度开放基金项目LPCC201305，2012年度四川省学术和技术带头人培养资金，气象关键技术与应用重点项目CMAGJ2015M51 （）
