P. Schmoldt, PhD - MTNet - DIAS

Symbol SI unit Denotation
φ · phase (of the electric impedance)
Φ · Caldwell phase tensor
Φ11, Φ12, Φ21, Φ22
elements of Φ
Φ1 − Φ4 · Caldwell parameters (coordinate independent)
π · Ludolf’s number
ψ · error function
Qh · distortion of the horizontal magnetic field
Qxx, Qxy, Qyx, Qyy
Qz Qzx, Qzy
R
·
·
·
Ω (=
elements of Qh in Cartesian coordinates
distortion of the vertical magnetic field
elements of Qz in Cartesian coordinates
1
R
) σ
·
resistance (integrated electric resistivity)
rotation matrix
Rdd · error covariance matrix
S xy · cross-spectral density
Qe
C
mn QW
ρ
·
Ωm (=
electric charge density
Weaver tensor invariant
Vm
ρa
S
) A
Ωm
S (=
electric resistivity
apparent electric resistivity
1
S 1
) Ω
Ωm
conductance (integrated electric conductivity)
sum of diagonal elements / trace (of the
impedance tensor)
S 2 Ωm sum of off-diagonal elements (of the
sD ·
impedance tensor)
telluric anisotropic distortion
σ
ΣB
S 1 (= ) m Ωm
·
electric conductivity
Bahr parameter: Two-dimensionality
T s period
T · geomagnetic transfer function/tipper
Tx, Ty · elements of T in Cartesian coordinates
t s time
τ
S
m2 , S
m3 , Ω, or Ω
m Smoothness parameter in inversion, e.g. ∇σ,
∇2σ, ∇ρ, ∇2ρ, or logarithmic values
tD · telluric twist distortion
Θ ° or rad angle
v
ω
x, y, z
m
s
1
s
m (or km)
velocity
angular frequency
Cartesian coordinates (z pos. downwards)
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