Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate

Wang, Shuo; Wada, Yuuki; Hayashi, Syugo; Ushio, Tomoo; Chandrasekar, V.

doi:https://doi.org/10.1029/2023jd040681

Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate

Wang, Shuo; Wada, Yuuki; Hayashi, Syugo et al.

Journal of Geophysical Research: Atmospheres, 2024, 129(19), e2023JD040681

アクセス数:499件（2025-07-26 18:46 集計）

固定URL: https://hdl.handle.net/11094/98408

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タイトル	Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate
著者	著者名 Wang, Shuo
	NRID 1000040879144 1000040879144 ORCID 0000-0001-8953-3345 0000-0001-8953-3345 researchmap permalink yuuki_wada yuuki_wada Scopus Author ID 57188929986 57188929986 著者名 Wada, Yuuki
	NRID 1000020354441 1000020354441 著者名 Hayashi, Syugo
	NRID 1000050332961 1000050332961 researchmap permalink read0077819 read0077819 Scopus Author ID 7005256762 7005256762 著者名 Ushio, Tomoo
	著者名 Chandrasekar, V.
内容	Wang S., Wada Y., Hayashi S., et al. Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate. Journal of Geophysical Research: Atmospheres 129, e2023JD040681 (2024); https://doi.org/10.1029/2023jd040681.
抄録	The electrical alignment signatures of ice crystals in the middle and upper parts of a thunderstorm have a physical connection with the strong electric fields within the cloud. By taking advantage of the high spatio-temporal resolution of an X-band dual-polarized multiparameter phased array radar, this paper employs negative KDP signatures to investigate the variation of electric fields in an isolated thunderstorm within its evolution, and the relationship between the negative KDP signatures and intracloud (IC) lightning activity. The results show that the radar-inferred strong electric fields distributed in a region of about 8.5–10 km during the developing stage, then extended from about 10 km to the cloud top during the mature stage, with an increasing IC lightning flash rate before the end of the mature stage. Subsequently, the electric fields weakened associated with a large amount of IC lightning discharges. The qualitative analysis results indicate that the evolution of the radar-inferred electric fields associated with the upper charge regions is consistent with the electrification process in the isolated thunderstorm, inferred by the IC lighting activity. In addition, there is a tendency for the increased IC lightning rate as the decrease in average composite KDP in the middle and upper layers of the thunderstorm, with a time lag of about 5.5 min between the minimum average composite KDP and the peak IC lightning rate, while a good correlation between the negative KDP volume and the IC lightning flash rate at a lag of approximately 9 min.
出版者	John Wiley and Sons Inc
収録物名	Journal of Geophysical Research: Atmospheres
巻(号)	129(19)
ページ	e2023JD040681
刊行年月	2024-10-16
言語	英語
ハンドルURL	https://hdl.handle.net/11094/98408
PISSN	2169897X
eISSN	21698996
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1029/2023jd040681
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCTERMS.bibliographicCitation	Journal of Geophysical Research: Atmospheres. 2024, 129(19), p. e2023JD040681
DC.title	Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate
DC.creator	Wang, Shuo
	Wada, Yuuki
	Hayashi, Syugo
	Ushio, Tomoo
	Chandrasekar, V.
DC.publisher	John Wiley and Sons Inc
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-10-16
DC.identifier	https://doi.org/10.1029/2023jd040681
DC.description	Wang S., Wada Y., Hayashi S., et al. Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate. Journal of Geophysical Research: Atmospheres 129, e2023JD040681 (2024); https://doi.org/10.1029/2023jd040681.
DCTERMS.abstract	The electrical alignment signatures of ice crystals in the middle and upper parts of a thunderstorm have a physical connection with the strong electric fields within the cloud. By taking advantage of the high spatio-temporal resolution of an X-band dual-polarized multiparameter phased array radar, this paper employs negative KDP signatures to investigate the variation of electric fields in an isolated thunderstorm within its evolution, and the relationship between the negative KDP signatures and intracloud (IC) lightning activity. The results show that the radar-inferred strong electric fields distributed in a region of about 8.5–10 km during the developing stage, then extended from about 10 km to the cloud top during the mature stage, with an increasing IC lightning flash rate before the end of the mature stage. Subsequently, the electric fields weakened associated with a large amount of IC lightning discharges. The qualitative analysis results indicate that the evolution of the radar-inferred electric fields associated with the upper charge regions is consistent with the electrification process in the isolated thunderstorm, inferred by the IC lighting activity. In addition, there is a tendency for the increased IC lightning rate as the decrease in average composite KDP in the middle and upper layers of the thunderstorm, with a time lag of about 5.5 min between the minimum average composite KDP and the peak IC lightning rate, while a good correlation between the negative KDP volume and the IC lightning flash rate at a lag of approximately 9 min.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	98408
citation_title	Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate
citation_author	Wang, Shuo
	Wada, Yuuki
	Hayashi, Syugo
	Ushio, Tomoo
	Chandrasekar, V.
citation_publisher	John Wiley and Sons Inc
citation_language	英語
citation_date	2024-10-16
citation_journal_title	Journal of Geophysical Research: Atmospheres
citation_volume	129
citation_issue	19
citation_firstpage	e2023JD040681
citation_doi	https://doi.org/10.1029/2023jd040681
citation_public_url	https://hdl.handle.net/11094/98408

Observation of Electrical Alignment Signatures in an Isolated Thunderstorm by Dual-Polarized Phased Array Weather Radar and the Relationship With Intracloud Lightning Flash Rate

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