Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes
Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes
复制标题
闪电观测对明确闪电过程数值天气预报的潜在影响
DOI:
10.1029/2021jd034611
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Miyoshi Takemasa
中科院分区:
文献类型:
--
作者:
Honda Takumi;Sato Yousuke;Miyoshi Takemasa
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.
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影响因子:
5.8
作者:
Yunji Zhang;E. Clothiaux;D. Stensrud
通讯作者:
Yunji Zhang;E. Clothiaux;D. Stensrud
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
Brice E Coffer;M. Parker;Johannes M. L. Dahl;Louis J. Wicker;A. Clark
通讯作者:
A. Clark
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
Y. Maejima;Masaru Kunii;T. Miyoshi
通讯作者:
T. Miyoshi
影响因子:
3
作者:
Sato Yousuke;Hayashi Syugo;Hashimoto Akihiro
通讯作者:
Hashimoto Akihiro
影响因子:
3.1
作者:
Seiki, Tatsuya;Nakajima, Teruyuki
通讯作者:
Nakajima, Teruyuki