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Table 1

Transition times between the different models used for Rc100k and several parameters describing the geomagnetic field, including DM: dipole moment, λD: the latitude of the dipole axis, ϕD: the longitude of the dipole axis, DP: dipole power, and NDP: non-dipole power.

Time (ka) Model DM (1022 Am2) λD (°) ϕD (°) DPa (103 μT2) NDP (μT2)
67.85 GGF100k 6.06 −84.4 −32.4 1.10 42.5
GGFSS70 6.03 −82.2 71.3 1.09 65.7
49.95 GGFSS70 7.66 −84.4 31.7 1.76 81.6
LSMOD.2 7.89 −83.7 0.36 1.86 79.5
32.65 LSMOD.2 6.53 −86.2 77.1 1.28 60.5
GGFSS70 6.57 −87.5 32.8 1.29 54.1
17.55 GGFSS70 7.42 −88.7 57.1 1.64 64.5
GGF100k 7.50 −81.4 83.6 1.68 84.4
9.95 GGF100k 7.68 −87.8 26.0 1.76 38.2
CALS10k.2 7.76 −84.9 61.6 1.79 31.6
a

Dipole and non-dipole power are evaluated at the Earth’s surface.

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