Ionospheric GPS total electron content (TEC) disturbances triggered by the 26 December 2004 Indian Ocean tsunami

Jann-Yenq Liu; Yi-Ben Tsai; Kuo-Fong MaYuh-Ing ChenHo-Fang TsaiChien-Hung LinMasashi KamogawaChien-Ping Lee

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Ionospheric GPS total electron content (TEC) disturbances triggered by the 26 December 2004 Indian Ocean tsunami

机译：GPS电离层总电子含量(TEC)扰动引发的2004年12月26日印度洋海啸

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摘要

Tsunami ionospheric disturbances (TIDs) of the 26 December 2004 M w 9.3 Sumatra earthquake are detected by the total electron content (TEC) of ground-based receivers of the global positioning system (GPS) in the Indian Ocean area. It is found that the tsunami waves triggered atmospheric disturbances near the sea surface, which then traveled upward with an average velocity of about 730 m/s (2700 km/hr) into the ionosphere and significantly disturbed the electron density within it. Results further show that the TIDs, which have maximum height of about 8.6–17.2 km, periods of 10–20 min, and horizontal wavelengths of 120–240 km, travel away from the epicenter with an average horizontal speed of about 700 km/hr (190 m/s) in the ionosphere.

机译：海啸电离层扰动(tid) 2612月2004 w苏门答腊9.3级地震检测到的总电子含量(TEC)全球定位的地面接收器系统(GPS)在印度洋地区。发现引发的海啸大气扰动在海面附近,然后向上平均旅行吗速度730米/秒(2700千米/小时)电离层和明显干扰电子密度。tid,最大高度约8.6 - -17.2公里,10 - 20分钟的时间和水平波长120 - 240公里,离旅行中心平均水平的速度约700公里/小时(190 m / s)在电离层。

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来源
《Journal of Geophysical Research, A. Space Physics: JGR》 |2006年第5期|A05303-1-A05303-4-0|共4页
作者
Jann-Yenq Liu; Yi-Ben Tsai; Kuo-Fong MaYuh-Ing ChenHo-Fang TsaiChien-Hung LinMasashi KamogawaChien-Ping Lee;
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作者单位

Department of Physics, Tokyo Gakugei University, Tokyo, Japan;

Institute of Geophysics, National Central University, Chung-Li, Taiwan;

Institute of Space Science, National Central University, Chung-Li, TaiwanCentral Weather Bureau, Taipei, Taiwan;

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正文语种英语
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关键词
Average speed; sea surface; Electron densitytsunamisTotal Electron ContentIndian Ocean;

机译：平均速度,海面;电子densitytsunamisTotal电子ContentIndian海洋;

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4. Ionospheric GPS total electron content (TEC) disturbances triggered by the 26 December 2004 Indian Ocean tsunami [J] . Jann-Yenq Liu, Yi-Ben Tsai, Kuo-Fong Ma, Journal of Geophysical Research, A. Space Physics: JGR . 2006,第a5期

机译：2004年12月26日印度洋海啸引发的电离层GPS总电子含量（TEC）扰动
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Ionospheric GPS total electron content (TEC) disturbances triggered by the 26 December 2004 Indian Ocean tsunami

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