Bullen, KE (English spelling) BullenKE

Japanese: Bullen,K.E.(英語表記)BullenKE
Bullen, KE (English spelling) BullenKE

...When such calculations are performed for a standard structure and the relationship between the travel time and distance of P and S waves traveling through various paths is compiled into a table, it is called the standard travel time table and is used to determine the epicenter. The standard travel time table published by H. Jeffreys and Bren Ke Bullen in 1940 is particularly famous, and the International Seismological Centre still uses this table to determine the epicenter. The Japan Meteorological Agency uses this travel time table with the results of artificial earthquakes taken into account, but the observatories of each university and research institute use their own travel time table to determine the epicenter. ...

*Some of the terminology that mentions "Bullen, KE" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ある標準的な構造についてこのような計算をし,さまざまな経路を伝わるP波やS波の走時と距離の関係を表にしたものは標準走時表などと呼ばれ,震源決定に使われる。ジェフリーズH.JeffreysとブレンK.E.Bullenが1940年に発表した標準走時表は特に有名で,国際地震センターInternational Seismological Centreでは,今でもこの表により震源を決定している。日本の気象庁では,この走時表に人工地震の結果を加味したものを使っているが,各大学や研究機関の観測所では,それぞれ独自の走時表により震源を決定している。…

※「Bullen,K.E.」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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