1D 2D 3D 4D notes (if extra files are given) magnetics acoustic acquisition airborne algorithm aliasing amplitude anisotropy aquifer archaeology borehole carbonate case history CSEM conductivity correlation crosswell crustal structure decomposition deconvolution density dispersion displacement divergence earthquake electromagnetic EM engineering environmental faults finite difference finite element finite volume fluid Fourier fractals fractures frequency-domain FEM full waveform inversion gas geothermal GPR gravity groundwater heat flow heterogeneous hydrates hydrology imaging impedance induced polarization IP interpolation interpretation inversion isotropic least squares linear lithology low frequency magnetic susceptibility magnetic permeability magnetics magnetotelluric MT mining modelling monitoring multicomponent near surface neural networks noise nonlinear numerical optimization paleomagnetism parallel permafrost permeability phase polarization porosity processing reciprocity reconstruction resistivity resolution SAGD saturation sediment sparse spectral survey design tectonics tensor thermal conductivity time-domain TEM time-lapse tomography transform two-dimensional volcanics wave equation wave propagation wavelet