Student Number 85227007 Author Wen-Lung Yu(´å¤åÀs) Author's Email Address No Public. Statistics This thesis had been viewed 249 times. Download 11 times. Department Graduate Institute of Space Science Year 1997 Semester 2 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Title Date of Defense Page Count 30 Keyword
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Abstract Computer Ionospheric Tornography(CIT) is a new method to study the large scale structure of the ionosphere. This report use this method to analysis the NNSS data during the volcano eruption on 22 November 22 1994. By these analyses, we find the electron density has obvious raise before the volcano eruption. However, about thirty hours after volcano eruption, electron density also has obvious raise and its maximum positions transmit toward north. But, at the second day, electron density has recovered as the same as the reference day. These results show the volcanic effects vanish. Table of Content Reference Advisor (½²°¶¶¯)
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