Fig. 2From: Groundwater pressure changes and crustal deformation before and after the 2007 and 2014 eruptions of Mt. OntakeRepresentative hourly observation results obtained at GOT. The groundwater pressure data are expressed as water head. Tidal changes and the effect of atmospheric pressure are subtracted from the original groundwater pressure data, and the residuals are shown as the corrected groundwater pressureBack to article page