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ふふ
4 ┷
ふ
PS ふ
ぜ┘ 2003 9 26 2003 M8.0 2004
26 M9.0 GPS ふ
ふPS TEC Total Electron Content ふ
ECふ2 ㈻
2 TECTotal election content ゝ ふ M7.5 ふ
Fig2 E,Calais et al(1998)
ふ GPS TECふ
Fig3 1 ぜ ぜGPS み み
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E,Calais et al{1998} Ionospheric signature of surface mine blasts from Global Positioning System measurements.GJI.Vol.132,191-202
H,kanamori et al{1994} Excitation of atmospheric oscillations by volcanic eruptions. JGR.Vol.99,No.B11,21947-21061
J.Artru et al{2004}Acoustic waves generated from sesmic surface wave:propagation properties determined from Dopplersounding observations and normal-mode modelling GJI.Vol.158,1067-1077
V.Ducic et al{2003} Ionospheric remote sensing of the Denali Earthquake Rayleigh Surface waves. GRL.Vol.30.No18,ab#S12A-0370
┘├ 1.25km/s
㍂ ∞ 20.0210
Fig4 3 Fig4 1 ふ 2004/12/26㍂ ㍂ TEC
1.25km/s ゝ13 23
ぜ 20TEC
TECU 3TECUぜ
ふ 1996/8 Black-Thunder ふ 2
Fig2 1 ㍂ ㍂ GPSIP
1.2km/s ぞ
TEC ふ
Sub-Ionospheric Point GPS├ 350km Ⅴ Ⅴ350kmⅤ Ⅴ
2001/6/23 TEC ふ ig2 2
Fig2 2
Fig2 2
㍂ ㍂
ゝ1.5~2.5km/s
2ゝ ゝ ├
TEC ふ M6.5 ふ
ふ 1999/9/20 Chi-Chi M7.6 ふ 2 3
Fig2 3 J,Artru et al 2004
Fig2 3 1~50mHz 1-100mHz㍂ ㍂
2 168km186km ふ ゝ
1-D ゝ
10┞
ふ
GPS GPS ゝⅤ ゝ Fig3 1
GPS 300 SIP TEC ゝ
TEC
Fig3 1
TEC Fig4 1
Fig4 1
Fig4 1 ㍂ ㍂ TEC″
GPS
″
TEC ″
ぜ
GPS Fig4 2
4 2 ㍂ ㍂ ″ SIP TEC
Ⅴ ├ ├
├
2 3Fig2 1 Fig4 2 1.2km/s
ふ Ⅴ
├├ Ⅴ Ⅴ
ふ ぜ
ふ ふ├ ふ
ふ ┘ 2 ┘ ぜ
㈻㈻ ふ
ふ
Fig4 3