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Table 4 Table of the mean SV Gauss coefficients for \(g_l^m,h_l^m\) (with the unit nT/year). The axial dipole SV \({\dot{g}}_1^0\) is given by Sabaka et al. (2020)

From: Geomagnetic secular variation forecast using the NASA GEMS ensemble Kalman filter: A candidate SV model for IGRF-13

l

m

\({\dot{g}}\)

\({\dot{h}}\)

\({\dot{g}}\) uncert

\({\dot{h}}\) uncert

1

0

4.78

0.00

0.0056

0.0000

1

1

8.18

−32.26

0.0053

0.0084

2

0

−5.84

0.00

0.0054

0.0000

2

1

−0.50

−33.51

0.0073

0.0076

2

2

−3.87

−18.41

0.0042

0.0063

3

0

6.49

0.00

0.0057

0.0000

3

1

3.41

6.05

0.0038

0.0029

3

2

4.72

0.44

0.0042

0.0040

3

3

−10.90

−0.87

0.0034

0.0033

4

0

−1.17

0.00

0.0023

0.0000

4

1

−1.31

0.30

0.0029

0.0033

4

2

−6.34

6.82

0.0016

0.0022

4

3

4.91

4.66

0.0031

0.0030

4

4

−4.07

−5.10

0.0019

0.0018

5

0

−0.31

0.00

0.0028

0.0000

5

1

−0.17

0.42

0.0014

0.0013

5

2

−0.78

3.19

0.0016

0.0019

5

3

−0.08

0.46

0.0013

0.0012

5

4

2.57

3.20

0.0020

0.0012

5

5

1.24

−0.30

0.0010

0.0011

6

0

−0.60

0.00

0.0007

0.0000

6

1

−0.22

0.18

0.0010

0.0010

6

2

−0.94

−1.70

0.0008

0.0007

6

3

2.22

−0.65

0.0011

0.0010

6

4

−1.63

0.95

0.0008

0.0007

6

5

−0.11

0.08

0.0007

0.0006

6

6

0.87

0.82

0.0007

0.0007

7

0

−0.09

0.00

0.0006

0.0000

7

1

0.20

0.45

0.0005

0.0004

7

2

−0.28

0.49

0.0006

0.0005

7

3

0.91

−0.81

0.0004

0.0004

7

4

−0.55

0.05

0.0008

0.0006

7

5

−0.61

−1.01

0.0003

0.0003

7

6

−0.84

0.25

0.0004

0.0005

7

7

0.83

0.33

0.0004

0.0003

8

0

0.05

0.00

0.0003

0.0000

8

1

0.15

−0.36

0.0003

0.0003

8

2

−0.30

0.47

0.0003

0.0002

8

3

0.57

−0.02

0.0003

0.0004

8

4

−0.21

0.64

0.0003

0.0003

8

5

0.52

0.19

0.0003

0.0003

8

6

0.09

−0.32

0.0002

0.0002

8

7

−0.46

0.56

0.0003

0.0003

8

8

0.38

−0.08

0.0002

0.0002