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Fig. 7 | Earth, Planets and Space

Fig. 7

From: Modeling the coseismic groundwater level increase in the Oi well, central Japan

Fig. 7

Slug test model results. a Results of the slug test model for the radial flow case. The one-dot chain lines show the observed data for the target events. The colored solid lines show the theoretical curves which were calculated using Eqs. (4)–(9). The horizontal axis is logarithmic time. The vertical axis is the normalized groundwater level (\(h_{s}\) in Eq. (5)). The purple line indicates 1/e of \({ }h_{s}\), showing that the time at the intersection with the groundwater is a time constant. b Results of the slug test model for the linear flow case. The one-dot chain lines show the observed data. The colored solid lines show the theoretical curves which were calculated using Eqs. (10)–(13). The horizontal axis is logarithmic time. The vertical axis is the normalized groundwater level (\(h_{s}\) in Eq. (5)). The purple line is the same as a

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