2026-03-15T17:18:15Z https://air.repo.nii.ac.jp/oai

oai:air.repo.nii.ac.jp:00002076 2023-07-25T11:08:55Z 597:598:708:926

A Trial Analysis in the Estimation of the Underground Structure by Dispersed Surface Waves 分散性表面波による構造解析の一つの試み 野越, 三雄 NOGOSHI, Mitsuo The present paper describes a trial analysis in the estimation of the underground structure by dispersed surface waves. The estimations of the shallower undergound structure have been investigated by a few seismologists by means of dispersed surface waves. In this paper the dispersed surface waves were analysed by means of Fourier transform (SATO, 1955). Assuming that the wave forms generated by a small explosion were approximately sinusoidal curves, the numerical integration of Fourier transform was tried to be calculated. As the result, the difference of depth was shown. It seems that the causes for the errors in this trial analysis are in the previous assumption and in reading the amplitudes and time intervals. These points will be discussed in future. departmental bulletin paper 秋田大学附属図書館 1974-02-28 VoR application/pdf 秋田大学教育学部研究紀要 自然科学 24 27 37 Memoirs of the Faculty of Education, Akita University. Natural science 03651649 AN00010282 https://air.repo.nii.ac.jp/record/2076/files/nogoshi8.pdf http://hdl.handle.net/10295/2233 https://air.repo.nii.ac.jp/records/2076 jpn