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Table 2 SV coefficients and their uncertainties based on the average SV between 2020 and 2025 from the dynamic forecast of the ensemble of dynamo models. Units are in nT/year

From: Predictions of the geomagnetic secular variation based on the ensemble sequential assimilation of geomagnetic field models by dynamo simulations

\(\ell\) m \({\dot{g}}_\ell ^m\) \({\dot{h}}_\ell ^m\) \(\sigma [{\dot{g}}_\ell ^m]\) \(\sigma [{\dot{h}}_\ell ^m]\)
1 0 8.24 0.00 1.66 0.00
1 1 5.94 − 23.77 2.59 2.92
2 0 − 9.56 0.00 1.99 0.00
2 1 − 5.12 − 24.20 2.07 2.20
2 2 − 5.38 − 15.31 1.79 1.77
3 0 2.30 0.00 1.40 0.00
3 1 − 5.32 6.66 1.47 1.55
3 2 1.82 1.20 1.22 1.25
3 3 − 11.93 − 1.75 1.18 1.04
4 0 − 1.11 0.00 0.89 0.00
4 1 − 1.72 −1.94 0.86 1.00
4 2 − 4.18 6.89 0.76 0.81
4 3 5.31 3.72 0.69 0.68
4 4 − 4.66 − 4.68 0.70 0.75
5 0 − 0.52 0.00 0.61 0.00
5 1 0.08 − 0.45 0.65 0.68
5 2 − 0.54 3.24 0.56 0.60
5 3 0.69 0.36 0.49 0.54
5 4 1.78 3.04 0.41 0.40
5 5 2.69 0.25 0.46 0.49
6 0 − 0.63 0.00 0.34 0.00
6 1 − 0.39 − 1.15 0.33 0.36
6 2 0.28 − 1.30 0.38 0.37
6 3 1.54 − 0.77 0.31 0.29
6 4 − 1.36 0.15 0.32 0.30
6 5 − 0.12 0.13 0.25 0.26
6 6 1.58 1.30 0.30 0.30
7 0 − 0.26 0.00 0.20 0.00
7 1 − 0.32 0.33 0.22 0.22
7 2 − 0.08 0.42 0.21 0.20
7 3 0.70 − 0.30 0.21 0.21
7 4 0.15 − 0.16 0.18 0.17
7 5 − 0.64 − 1.02 0.19 0.17
7 6 − 0.79 0.13 0.15 0.15
7 7 0.64 0.15 0.20 0.18
8 0 0.22 0.00 0.13 0.00
8 1 0.47 − 0.56 0.12 0.13
8 2 − 0.21 0.16 0.14 0.13
8 3 0.37 0.15 0.12 0.12
8 4 −0.29 0.35 0.12 0.13
8 5 0.16 − 0.53 0.11 0.10
8 6 0.00 − 0.21 0.11 0.10
8 7 − 0.09 0.41 0.09 0.09
8 8 0.43 − 0.12 0.11 0.12