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Magnetotelluric measurements of volcanic lightning at Sakurajima, Japan

Magnetotelluric measurements of volcanic lightning at Sakurajima, Japan
日本樱岛火山闪电的大地电磁测量
批准号:
23740332
负责人:
AIZAWA KOKI
金额:
$3.0万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2011
资助国家:
日本
项目状态:
已结题
起止时间:
2011 至 2012

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中文摘要
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英文摘要
We conducted three kinds of observations (Movie, Magnetotellurics, and MF observation). The results showed the following features of volcanic lightning;(1) There are two types of discharges. One is the assemblage of several pulses. Another is the EM burst that continues several ms. (2) The duration of each pulse in the assemblage type is short as a few tens of micro seconds, but its amplitude is far strong than that of EM burst. Above features are similar to the lightning in the thundercloud. However, its duration and strength is approximately 1/10˜1/100 of that of thundercloud.
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Multi-parametric observation of volcanic lightning produced by ash-rich plumes at Sakurajima volcano
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DOI: --
发表时间: 2014
期刊:
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