Numerical Simulation of Electrical Space Charge Density and Lightning by using a 3-Dimensional Cloud-Resolving Model
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- Hayashi Syugo
- Meteorological Research Institute
書誌事項
- 公開日
- 2006
- DOI
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- 10.2151/sola.2006-032
- 公開者
- 公益社団法人 日本気象学会
説明
A new lightning formation scheme to simulate electrical space charge density and lightning is introduced into a 3-dimensional cloud-resolving model (JMANHM: Japan Meteorological Agency NonHydrostatic Model, Saito et al. 2006). A tripole structure in the electrical space charge distribution in cumulonimbi, clarified previous observational and numerical idealized studies (e.g., Williams 1989; Takahashi 1984), is well reproduced in numerical simulations with this new scheme.<br>The numerical simulations with the horizontal resolution of 1.5 km are performed to reproduce the thunderstorm observed over the Kanto area, the central part of the Japan Islands, on 08 July 2004. In these simulations, four electrical charge transfer methods are applied to this event. Among them, the modified method from Helsdon and Farley (1987) (mHF-method) predicts cloud-ground lightning polarity most successfully in comparison with the observations. The electrical space charge structures simulated with the mHF-method agree with the previous observational and idealized numerical studies.
収録刊行物
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- SOLA
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SOLA 2 124-127, 2006
公益社団法人 日本気象学会
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詳細情報 詳細情報について
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- CRID
- 1390001205223436416
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- NII論文ID
- 130004448412
- 30014990385
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- ISSN
- 13496476
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
