气象科学2017,Vol.37Issue(3):293-303,11.DOI:10.3969/2016jms.0029
基于WRF模式对华北一次飑线过程中雷电活动的间接和直接模拟研究
Indirect and direct simulation on lightning activity of a squall line process in North China based on WRF model
摘要
Abstract
The non-inductive charging mechanism and simple discharging parameterization scheme were coupled to Morrison microphysical scheme in WRF model,and the Lightning Potential Index (LPI) was introduced to the model,on these bases,a squall line occurred in North China on June 16,2009 was simulated,in order to determine the reappearance ability of the lightning flash density by the proposed model.Results show that the model can quite better recreate the observed radar echo and precipitation distribution features,therefore,it is able to simulate the macroscopical and electrical features of this squall line.The calculation of indirect simulation of LPI represents roughly the lightning distribution feature,but the LPI distribution covers obviously the wider range than the observed lightning distribution.The direct simulated lightning density reproduces the observed lightning distribution reasonably.Due to the total lightning density given in model output,it is nature to find larger C-G lightning density than the observed one.关键词
闪电活动/间接模拟/直接模拟/WRF模式Key words
Lightning activity/Indirect simulation/Direct simulation/WRF model分类
天文与地球科学引用本文复制引用
赵鹏国,银燕,周筠珺,肖辉,康汉青,邓美玲..基于WRF模式对华北一次飑线过程中雷电活动的间接和直接模拟研究[J].气象科学,2017,37(3):293-303,11.基金项目
国家重点基础研究发展计划(973 计划)项目(2014CB441403,2014CB441401) (973 计划)
江苏高校优势学科建设工程资助项目(PAPD) (PAPD)
北京市自然科学基金重点项目(8141002) (8141002)
四川省高校重点实验室开放课题(QGX16006) (QGX16006)
高原大气与环境四川省重点实验室开放课题(PAEKL-2016-Y1) (PAEKL-2016-Y1)