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Earth, Planets and Space

Table 4 Summary of validation tests for the 4-monthly GVO products

From: Geomagnetic Virtual Observatories: monitoring geomagnetic secular variation with the Swarm satellites

 

GVO series

Ground observatory comparison

Model comparison

Error estimates

\(\mathrm {rms}_r\)

\(\mathrm {rms}_{\theta }\)

\(\mathrm {rms}_{\phi }\)

\(\mathrm {rms}_F\)

\(\mathrm {rms}_r\)

\(\mathrm {rms}_{\theta }\)

\(\mathrm {rms}_{\phi }\)

\(\mathrm {rms}_F\)

\(\mathrm {rms}_r\)

\(\mathrm {rms}_{\theta }\)

\(\mathrm {rms}_{\phi }\)

All

GVO-OBS [nT]

2.28

3.72

2.69

2.66

2.35

2.66

2.03

2.56

1.77

3.35

2.77

GVO-CORE [nT]

2.18

3.19

2.52

2.38

2.51

2.34

2.06

2.51

2.28

2.20

1.88

GVO-SV [nT/yr]

3.49

3.99

4.27

2.63

1.27

1.42

2.38

1.44

1.31

1.47

2.29

Polar

GVO-OBS [nT]

3.16

4.50

3.29

3.07

2.69

3.78

3.27

2.55

3.16

5.83

6.13

GVO-CORE [nT]

3.25

4.25

3.39

3.12

2.96

3.36

2.96

2.87

2.65

3.29

2.78

GVO-SV [nT/yr]

5.83

6.59

6.49

3.81

2.15

2.68

3.38

2.79

2.23

2.78

2.84

Non-polar

GVO-OBS [nT]

1.51

3.04

2.17

2.31

2.23

2.26

1.59

2.56

1.32

2.54

1.67

GVO-CORE [nT]

1.26

2.28

1.76

1.74

2.35

1.98

1.74

2.38

2.16

1.82

1.56

GVO-SV [nT]

1.47

1.73

2.34

1.60

0.96

0.98

2.03

0.96

0.99

1.01

2.10

Benchmark

GVO-OBS [nT]

1.32

2.92

1.93

1.93

2.26

2.41

1.56

2.74

1.28

2.16

1.30

GVO-CORE [nT]

1.14

1.92

1.70

1.42

2.39

2.03

1.73

2.50

2.17

1.85

1.57

GVO-SV [nT/yr]

1.42

1.54

2.14

1.19

0.97

0.97

2.02

0.97

1.00

1.00

2.09

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