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Table 2 SV for 2010-2015 validation experiments from CM6, the GEMS EnKF, and extrapolations of CM6 from 2009-2010

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

L

m

CM6

Extrapolation

Forecast

1

1

16.9980

− 29.6062

16.8822

−28.9857

16.87

−36.28

2

0

−10.0399

0.0000

−11.5499

0.0000

−4.39

0.00

2

1

−2.7965

−27.4081

−3.9213

−22.8400

−2.18

−26.57

2

2

1.6279

−13.2957

2.7249

−13.3551

2.43

−13.71

3

0

2.2055

0.0000

1.1431

0.0000

3.86

0.00

3

1

−5.1435

9.0073

−3.9088

8.7466

0.78

8.68

3

2

−1.2684

−1.3568

−2.8669

−2.8496

−1.33

−2.37

3

3

−10.3680

−0.3712

−7.7075

−1.9579

−7.70

−2.22

4

0

−1.0547

0.0000

−1.3856

0.0000

2.95

0.00

4

1

0.9199

−0.5882

1.9925

0.2234

1.41

1.34

4

2

−9.2351

4.5314

−8.9866

3.0664

−10.48

3.53

4

3

4.3963

3.2985

4.4430

3.7606

5.91

2.64

4

4

−3.8282

−3.9203

−2.0291

−0.7498

−2.00

−1.84

5

0

−0.3896

0.0000

−0.5386

0.0000

1.21

0.00

5

1

0.5725

0.4570

0.5931

0.4944

1.48

0.29

5

2

−1.5870

1.6027

−1.5356

1.4798

−0.63

1.01

5

3

0.0359

−0.2325

−0.7754

0.8731

−1.72

1.46

5

4

1.1619

3.2020

1.2403

3.7308

−0.90

3.93

5

5

2.4740

−0.1790

1.3844

−0.6087

1.73

0.04

6

0

−0.6603

0.0000

−0.2814

0.0000

0.19

0.00

6

1

−0.2173

0.0588

−0.2364

−0.0351

−0.55

0.00

6

2

−0.6162

−2.1738

−0.3307

−2.2186

−0.73

−2.39

6

3

2.3154

−0.5691

2.0345

−0.4257

1.62

−0.52

6

4

−1.2210

−0.0776

−1.5997

−0.5149

−1.91

−0.12

6

5

0.0105

0.8680

−0.1500

0.6775

−0.32

0.39

6

6

1.4449

1.3886

1.7602

0.5885

2.10

1.26

7

0

0.1644

0.0000

0.1883

0.0000

0.70

0.00

7

1

−0.1965

0.7082

−0.1043

0.5869

0.28

0.12

7

2

−0.4427

0.3374

−0.5881

0.2778

−0.74

0.47

7

3

1.3211

−0.1861

1.3548

−0.1108

0.72

−0.13

7

4

0.2199

−0.1032

0.2192

−0.1536

−0.44

−0.24

7

5

−0.2284

−0.7514

0.0913

−0.7550

0.27

−0.91

7

6

−0.9005

0.0212

−0.8291

−0.3096

−1.34

−0.34

7

7

0.3188

0.1894

0.5567

0.2978

0.61

0.08

8

0

−0.0753

0.0000

−0.1036

0.0000

−0.12

0.00

8

1

0.1342

−0.1632

0.1065

−0.0524

0.07

0.17

8

2

−0.4481

0.3643

−0.5856

0.1758

−0.64

0.00

8

3

0.4864

0.2678

0.3043

0.4529

0.58

0.51

8

4

−0.2490

0.5588

−0.2602

0.4869

−0.08

0.33

8

5

0.3437

−0.1072

0.2841

0.0695

0.45

0.12

8

6

0.1812

−0.2571

0.2611

−0.1151

0.20

−0.15

8

7

−0.3853

0.3267

−0.5167

0.3988

−0.47

0.64

8

8

0.2976

0.1551

0.2287

0.3353

0.33

0.33