Development of Lightning Nowcasting and Warning Technique and Its Application

The Chinese Academy of Meteorological Sciences Lightning Nowcasting and Warning System (CAMS_LNWS) was designed to predict lightning within the upcoming 0-1 h and provide lightning activity potential and warning products. Multiple remote sensing data and numerical simulation of an electrification an...

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Main Authors: Qing Meng, Wen Yao, Liangtao Xu
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Advances in Meteorology
Online Access:http://dx.doi.org/10.1155/2019/2405936
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author Qing Meng
Wen Yao
Liangtao Xu
author_facet Qing Meng
Wen Yao
Liangtao Xu
author_sort Qing Meng
collection DOAJ
description The Chinese Academy of Meteorological Sciences Lightning Nowcasting and Warning System (CAMS_LNWS) was designed to predict lightning within the upcoming 0-1 h and provide lightning activity potential and warning products. Multiple remote sensing data and numerical simulation of an electrification and discharge model were integrated in the system. Two core algorithms were implemented: (1) an area identification, tracking, and extrapolating algorithm and (2) a decision tree algorithm. The system was designed using a framework and modular structure, and integrated warning methods were applied in the warning program. Two new algorithms related to the early warning of the first lightning and thunderstorm dissipation were also introduced into the system during the upgrade process. Thunderstorms occurring in Beijing, Tianjin, and Hebei during 2016-2017 were used to evaluate the CAMS_LNWS by the low-frequency cloud to ground lightning detection data, and the results showed that the system has good forecasting and warning ability for local lightning activities. The TS score in 0-1 h ranged from 0.11 to 0.32, with a mean of 0.20. Operational experiments and promotional work for the CAMS_LNWS are now in progress.
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institution Kabale University
issn 1687-9309
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language English
publishDate 2019-01-01
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spelling doaj-art-88f2954e7eeb483ba37c6bed31e151162025-02-03T01:31:28ZengWileyAdvances in Meteorology1687-93091687-93172019-01-01201910.1155/2019/24059362405936Development of Lightning Nowcasting and Warning Technique and Its ApplicationQing Meng0Wen Yao1Liangtao Xu2State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, ChinaState Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, ChinaState Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, ChinaThe Chinese Academy of Meteorological Sciences Lightning Nowcasting and Warning System (CAMS_LNWS) was designed to predict lightning within the upcoming 0-1 h and provide lightning activity potential and warning products. Multiple remote sensing data and numerical simulation of an electrification and discharge model were integrated in the system. Two core algorithms were implemented: (1) an area identification, tracking, and extrapolating algorithm and (2) a decision tree algorithm. The system was designed using a framework and modular structure, and integrated warning methods were applied in the warning program. Two new algorithms related to the early warning of the first lightning and thunderstorm dissipation were also introduced into the system during the upgrade process. Thunderstorms occurring in Beijing, Tianjin, and Hebei during 2016-2017 were used to evaluate the CAMS_LNWS by the low-frequency cloud to ground lightning detection data, and the results showed that the system has good forecasting and warning ability for local lightning activities. The TS score in 0-1 h ranged from 0.11 to 0.32, with a mean of 0.20. Operational experiments and promotional work for the CAMS_LNWS are now in progress.http://dx.doi.org/10.1155/2019/2405936
spellingShingle Qing Meng
Wen Yao
Liangtao Xu
Development of Lightning Nowcasting and Warning Technique and Its Application
Advances in Meteorology
title Development of Lightning Nowcasting and Warning Technique and Its Application
title_full Development of Lightning Nowcasting and Warning Technique and Its Application
title_fullStr Development of Lightning Nowcasting and Warning Technique and Its Application
title_full_unstemmed Development of Lightning Nowcasting and Warning Technique and Its Application
title_short Development of Lightning Nowcasting and Warning Technique and Its Application
title_sort development of lightning nowcasting and warning technique and its application
url http://dx.doi.org/10.1155/2019/2405936
work_keys_str_mv AT qingmeng developmentoflightningnowcastingandwarningtechniqueanditsapplication
AT wenyao developmentoflightningnowcastingandwarningtechniqueanditsapplication
AT liangtaoxu developmentoflightningnowcastingandwarningtechniqueanditsapplication