Whistlers Generated by Gigantic Jets: Modeling and Observations
學年 104
學期 2
發表日期 2016-05-16
作品名稱 Whistlers Generated by Gigantic Jets: Modeling and Observations
作品名稱（其他語言） 巨大噴流產生的哨聲波: 模式及觀測
著者 Wang; K.; S. C. Chang; S. M. Huang; R. R. Hsu; J. J. Berthelier; T. Onishi
作品所屬單位
出版者
會議名稱 2016年臺灣地球科學聯合學術研討會
會議地點 Taipei, Taiwan
摘要 The characteristics of whistlers generated from a gigantic jet (GJ) are modeled as well as to examine satellite observations. Modeling is based on disturbances in the electric field, as measured by NCKU ELF/VLF station, associated with a representative tree-like GJ event over typhoon Lionrock. The calculated frequency-time spectrogram shows two sequent whistlers, with the later one emitted mainly below a few kHz. Our results show that the waves are subject to greater attenuation as the frequency increases; however, a reversal occurs at lower frequencies of a few hundred Hz due to ion effects. The electric fields observed by DEMETER (Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions) satellite mission are then investigated based on the locations of tree-like GJ events observed by ISUAL (Imager of Sprites and Upper Atmospheric Lightning). Paired whistlers, detected right after the tree-like GJ event occurred closest to the satellite location among all examined events, with power distribution features on the frequency-time spectrogram resembling modeled two sequent whistlers, are found.
關鍵字
語言 zh_TW
收錄於
會議性質 國內
校內研討會地點 無
研討會時間 20160516~20160520
通訊作者 汪愷悌
國別 TWN
公開徵稿
出版型式
出處 2016年臺灣地球科學聯合學術研討會論文集
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/107452 )

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