...these waves are successively refracted at the same angle and return to the earth's surface. The seismic refraction method uses these special refracted waves, while the seismic reflection method uses the reflected waves. The refraction method is said to have originated during World War I, when the German army tried to determine the location of enemy heavy artillery by observing the waves from the recoil from firing. ... *Some of the terminology that refers to the "seismic refraction method" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この波は同じ角度で逐次屈折され再び地表に帰る。この特殊な屈折波を利用するのが地震屈折法seismic refraction methodであり,反射波を利用するのが地震反射法seismic reflection methodである。屈折法は,第1次大戦中ドイツ軍が敵の重砲位置をその発射反動からの波を観測することにより知ろうとしたのに始まるとされている。… ※「seismic refraction method」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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