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Title: GPS-TEC法による地球物理学
Other Titles: Geophysics with GPS-TEC
Authors: 日置, 幸介1 Browse this author →KAKEN DB
菅原, 守2 Browse this author
大関, 優3 Browse this author
岡崎, 郁也4 Browse this author
Authors(alt): Heki, Kosuke1
Sugawara, Mamoru2
Ozeki, Masaru3
Okazaki, Ikuya4
Issue Date: 25-Feb-2011
Publisher: 日本測地学会
Journal Title: 測地学会誌
Volume: 56
Issue: 4
Start Page: 125
End Page: 134
Abstract: Two carrier frequencies, L1 and L2, used in Global Positioning System (GPS) can be used to isolate ionospheric total electron contents (TEC) by taking the phase differences between the two carriers (L4). Here we review technical aspects of geophysical applications of TEC measurements. Topics include conversion of standard format raw GPS data files into L4 and TEC, and numerical techniques to isolate disturbance signals with various time scales. We also introduce typical examples of TEC change signatures of variety of geophysical phenomena, e.g. volcanic eruptions, earthquakes, solar flares, ionospheric hole formation by rockets and missiles, solar eclipse, and elusive precursory TEC changes before earthquakes.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 日置 幸介

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