Skip to main content

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