Impact of ice multiplication on the cloud electrification of a cold-season thunderstorm: a numerical case study
Abstract Ice microphysics controls cloud electrification in thunderstorms, and the various secondary ice production (SIP) processes are vital in generating high ice concentrations. However, the role of SIP in cold-season thunderstorms is not well understood. In this study, the impacts of SIP on the electrification in a thunderstorm that occurred in late November are investigated using model simulations. The parameterizations of four SIP processes are implemented in the model, including the rime splintering, ice–ice collisional breakup, shattering of freezing drops, and sublimational breakup of ice. In addition, a noninductive charging parameterization and an inductive charging parameterization, as well as a bulk discharging model, are coupled with the spectral bin microphysics scheme. The macroscopic characteristics and the temporal evolution of this thunderstorm are well modeled. The radar reflectivity and flash rate obtained by adding four SIP processes are more consistent with the observations than those without SIP. Among the four SIP processes, the rime splintering has the strongest impact on the storm. The graupel and snow concentrations are enhanced while their sizes are suppressed due to the SIP. The changes in the ice microphysics result in substantial changes in the charge structure. The total charge density changes from an inverted tripole structure to a dipole structure (tripole structure at some locations) after four SIP processes are considered in the model, mainly due to the enhanced collision between graupel and ice. These changes lead to an enhancement of the vertical electric field, especially in the mature stage, which explains the improved modeling of flash rate. The results highlight that cold-season cloud electrification is very sensitive to the SIP processes.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Impact of ice multiplication on the cloud electrification of a cold-season thunderstorm: a numerical case study ; volume:24 ; number:10 ; year:2024 ; pages:5989-6010 ; extent:22
Atmospheric chemistry and physics ; 24, Heft 10 (2024), 5989-6010 (gesamt 22)
- Creator
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Yang, Jing
Huang, Shiye
Yang, Tianqi
Zhang, Qilin
Deng, Yuting
Liu, Yubao
- DOI
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10.5194/acp-24-5989-2024
- URN
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urn:nbn:de:101:1-2405300429225.452414023952
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:56 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Yang, Jing
- Huang, Shiye
- Yang, Tianqi
- Zhang, Qilin
- Deng, Yuting
- Liu, Yubao
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