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Table 3 CM6 damping parameter values

From: CM6: a comprehensive geomagnetic field model derived from both CHAMP and Swarm satellite observations

NormDamping parameter (\(\lambda\))
Core
 \({{\mathcal {P}}}\langle {\dddot{B}_r^2}\rangle\)\(1.0\times 10^0\)\((\mathrm{nT}\cdot \mathrm{yr}^{-3})^{-2}\)
Lithosphere
 \({{\mathcal {P}}}\langle \left| {{\mathbf {B}}_{n\ge 110}}\right| ^2\rangle\)\(2.0\times 10^1\)\((\mathrm{nT})^{-2}\)
Ionosphere
 \({{\mathcal {P}}}\langle \left| {{\mathbf {J}}_{\mathrm{eq},\mathrm{MLT}:21{-}05}}\right| _2^2\rangle\)\(1.0\times 10^5\)\((\mathrm{A}\cdot \mathrm{km}^{-1})^{-2}\)
 \({{\mathcal {P}}}\langle \left| {\nabla _s^2{\mathbf {J}}_{\mathrm{eq},p>0,\mathrm{mid{-}lat}}}\right| _2^2\rangle\)\(1.0\times 10^{-2}\)\((\mathrm{A}\cdot \mathrm{km}^{-3})^{-2}\)
Magnetosphere/induced
 \({{\mathcal {P}}}\langle \left| {{\mathbf {p}}_{\mathrm{mag/ind}}}\right| _2^2\rangle\)Variable\((\mathrm{nT})^{-2}\)
 \({{\mathcal {P}}}\langle \left| {{\mathbf {p}}_{\mathrm{ind}\perp \mathrm{core}}}\right| _2^2\rangle\)\(\infty\)\((\mathrm{nT})^{-2}\)
CHAMP Euler angles
 \({{\mathcal {P}}}\langle \left| \Delta E_{2ST}\right| ^2\rangle\)\(1.0\times 10^4\)\((\mathrm{rad})^{-2}\)
 \({{\mathcal {P}}}\langle \left| \Delta E_{AST}\right| ^2\rangle\)\(1.0\times 10^4\)\((\mathrm{rad})^{-2}\)
 \({{\mathcal {P}}}\langle \left| \Delta E_{BST}\right| ^2\rangle\)\(1.0\times 10^4\)\((\mathrm{rad})^{-2}\)