气候变化领域集成服务门户(CCPortal): Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes

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DOI	10.1029/2021JD034611
	Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes
	Honda T.; Sato Y.; Miyoshi T.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:19
英文摘要	Although various lightning observation platforms exist, lightning flash observations have not been fully utilized for numerical weather prediction (NWP), mainly due to complications related to modeling lightning processes. Herein, we investigated the potential impacts of lightning observations using an ensemble Kalman filter (EnKF) with an NWP model, including explicit lightning processes. The EnKF included flow-dependent error covariances between lightning flashes and the atmospheric state. Observing system simulation experiments were performed for an idealized convective case. Ensemble-based correlations with various observations indicated that lightning flashes provide valuable information below cloud tops where satellite infrared radiances cannot observe well due to the presence of anvil clouds. Moreover, a single-step data assimilation experiment showed that lightning flashes positively impact the analysis and forecast of wind, hydrometeors, and electric charge. The results revealed that lightning flashes are potentially useful for an EnKF with an NWP model including explicit lightning processes. © 2021. The Authors.
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236969
作者单位	RIKEN Center for Computational Science, Kobe, Japan; Faculty of Science, Hokkaido University, Sapporo, Japan; RIKEN Cluster for Pioneering Research, Kobe, Japan; RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program, Kobe, Japan
推荐引用方式 GB/T 7714	Honda T.,Sato Y.,Miyoshi T.. Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes[J],2021,126(19).
APA	Honda T.,Sato Y.,&Miyoshi T..(2021).Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes.Journal of Geophysical Research: Atmospheres,126(19).
MLA	Honda T.,et al."Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes".Journal of Geophysical Research: Atmospheres 126.19(2021).