Fig. 8From: Effects of vertical nonlinearity on the superconducting gravimeter CT #036 at Ishigakijima, JapanPower spectra for the displacements of the superconducting sphere. These have been derived by convolving theoretical responses of horizontal and vertical components with the ground motions recorded by a seismometer. a Up-down component. b North–south component. c East–west componentBack to article page