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Fig. 4 | Earth, Planets and Space

Fig. 4

From: Hydrological gravity response detection using a gPhone below- and aboveground

Fig. 4

Illustration of the ideal gravity monitoring system (gravimeter array method) for reducing hydrological gravity disturbances. This article only includes underground and surface gPhone observations. As a result of this study, we suggest that simultaneous operation of both types of gPhone measurements (along with repeated absolute measurements) is the next step for correcting groundwater disturbances. In the future, the underground gPhone could be replaced by a borehole gravimeter to eliminate the need for a large-scale underground facility.

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