Explosion energy of the 2004 eruption of the Asama Volcano, central Japan, inferred from ionospheric disturbances
Explosion energy of the 2004 eruption of the Asama Volcano, central Japan, inferred from ionospheric disturbances
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DOI：
10.1029/2006gl026249
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发表时间：
2006-07-19
影响因子：
5.2
通讯作者：
Heki, Kosuke
中科院分区：
文献类型：
--
作者：
Heki, Kosuke
日本密集的全球定位系统记录了电离层扰动，因为总电子含量的变化与2004年9月1日在日本中部阿萨马火山喷发后的12分钟相似。该干扰的周期为一分钟和四分之一分钟，并且传播的速度与1.1 km/s相似，这表明它的起源与爆炸产生的声波相似。通过比较具有已知能量的表面矿山爆炸的干扰振幅，可以推断出总体爆炸能量约为2 x 10（14）。
The Japanese dense array of Global Positioning System recorded ionospheric disturbances as changes in Total Electron Content similar to 12 minutes after the September 1 2004 eruption of the Asama Volcano, Central Japan. The disturbance had a period of one and a quarter minutes and propagated as fast as similar to 1.1 km/s, suggesting its origin as the acoustic wave generated by the explosion. By comparing the disturbance amplitudes with those by a surface mine blast with a known energy, the overall Asama explosion energy is inferred to be about 2 x 10(14) J.