Index 651
Sparsity, 475, 480
Spherical harmonics, 151
Stability, 567
Static Field, 20
Stationary Field, 20
Stochastic Inversion, 565
Stoke’s Theorem, 12
Subsurface kernel, 212
Surface impedance, 386
Surface Integral, 7
Surface Kernel, 212
Synthetic model, 564
Taylor’s series expansion, 537
Telluric field, 280, 284, 289, 290,
295, 296
TE Mode, 495
Temperature, 612
Tensor, 32
Tesseral harmonics, 202
Tikhnov’s Regularisation, 571
TM Mode, 494
Transitional Layer, 240, 241, 243
Transmission coefficient, 331
Transverse Electric Mode, 491
Transverse Magnetic Mode, 491
Underdetermined Problems, 590
Universal Gravitational constant G, 44,
45, 53, 63
Upward Continuation, 320
Variable field, 20
Variance-covariance matrix, 589
Variational approach, 497
Vector, 1–16
Vector Algebra, 1–16
Vector Green’s Function, 447
Vector Potential, 94, 114, 324, 349,
359, 367
Vertical oscillating electric dipole, 394
Vertical Oscillating Magnetic
Dipole, 399
Very fast Simulated Annealing, 610
Volterra’s Integral equations, 40
Wave Length, 354
Wave Number, 350, 355
Weber Lipschitz Integral, 403
Weighted Ridge Regression, 606
Well Posed Problem, 567
Zonal Harmonics, 203