Observation of Crustial Movement at the Akita Geophysical Observatory (2):- On Crustial Strain Change Caused by a Rainfall-
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概要
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Data observed by the extensometers at the Akita Geophysical Observatory for the period of July 14, 1970-December 31, 1971 are analyzed in order to investigate the effect of rainfall on strain change. It is found that abrupt strain change due to a rainfall does not depend on the load of rain, but penetrating water into the ground. It is clarified that areal strain change due to a rainfall is always minus and strain change does not depend upon total precipitation but types of a rainfall. It is also shown that strain change due to a rainfall is explained by the theory of a porous medium, comparing the observed strain curves with the theoretical ones.
- 日本測地学会の論文
日本測地学会 | 論文
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