Fig. 5From: Different hydraulic responses to the 2008 Wenchuan and 2011 Tohoku earthquakes in two adjacent far-field wells: the effect of shales on aquifer lithologyBarometric efficiencies and phase shifts (black dots) in the low-, intermediate-, and high-frequency bands by cross-spectra estimation, for the Baodi (a) and Zuojiazhuang (b) stations. Negative phase shifts mean water level lags behind the barometric pressureBack to article page