WEKO3
アイテム
Computer simulations on sprite initiation for realistic lightning models with higher‐frequency surges
http://hdl.handle.net/10228/00006410
http://hdl.handle.net/10228/00006410101ae58d-88a2-4c79-a74e-34b5c012ba5a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
LaSEINE-2008_13.pdf (2.0 MB)
|
|
| Item type | 学術雑誌論文 = Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-10-13 | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| タイトル | ||||||
| タイトル | Computer simulations on sprite initiation for realistic lightning models with higher‐frequency surges | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 著者 |
Asano, T.
× Asano, T.× Suzuki, T.× Hiraki, Y.× Mareev, E.× 趙, 孟佑× Hayakawa, M. |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | [1] Computer simulations on transient luminous emissions in the mesosphere and lower ionosphere have been performed for realistic lightning modelings with fast-varying current surges (M components) superimposed on the lightning continuing current (CC). The algorithm used here is an electromagnetic (EM) code, which enables us to estimate self-consistently the reduced electric field, electron density, conductivity, and luminosity as a function of space and time by solving the Maxwell equations. It is found that M components in the CC with small amplitudes, but with a fast-varying EM effect, can initiate or enhance the occurrence of sprites. Even for a return stroke (RS) without CC, subsequent high-frequency current variations (like M components) are found to lead to dramatic changes in the sprite occurrence. The physics underlying these changes is studied by means of, e.g., temporal and spatial variations of luminosity, electron density, and conductivity. As the conclusion, the RS is a fundamental agency for spites, but high-frequency variations as EM effects exhibit an additional essential influence on sprite occurrence. These computational results are used to offer some useful ideas concerning the unsolved problems of sprites and halos, including polarity asymmetry, long-delay characteristics, and morphological shapes of sprites. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : Journal of Geophysical Research: Space Physics 巻 114, 号 A2, p. A02310-1-A02310-14, 発行日 2009-02-19 |
|||||
| 出版社 | ||||||
| 出版者 | American Geophysical Union | |||||
| 言語 | en | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1029/2008JA013651 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10819721 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 2169-9380 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2169-9402 | |||||
| 著作権関連情報 | ||||||
| 権利情報 | Copyright (c) 2009 by the American Geophysical Union. An edited version of this paper was published by AGU. Copyright 2009 American Geophysical Union. | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | sprites | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | computer simulations | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | lightning | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 査読の有無 | ||||||
| 値 | yes | |||||
| 研究者情報 | ||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/168_ja.html | |||||
| 論文ID（連携） | ||||||
| 値 | 10017542 | |||||
| 連携ID | ||||||
| 値 | 502 | |||||
