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Table 1 The weighted root-mean-square error (σ) and weighted model bias (μ), where the weight is given by the inverse of the standard deviation of the climatological zonal drifts, for each model during different season and solar flux conditions

From: On a simple, data-aided analytic description of the morphology of equatorial F-region zonal plasma drifts

   LSF HSF
   Dec. Sol. Equinox Jun. Sol. Dec. Sol. Equinox Jun. Sol.
Full Day σ93 20.75 25.39 29.67 17.79 18.17 23.74
  σ07 13.59 16.34 18.44 23.23 32.24 20.66
  σ14 12.95 17.30 13.80 27.74 30.49 16.07
  μ93 1.60 − 2.10 -4.94 4.29 − 1.23 − 7.12
  μ07 4.25 11.36 2.69 14.97 23.31 1.73
  μ14 8.38 6.70 2.49 22.91 20.83 5.57
Daytime σ93 19.24 14.73 17.55 18.18 15.08 13.84
  σ07 8.01 12.68 19.32 11.24 17.73 22.54
  σ14 11.51 9.93 12.91 17.92 14.71 16.28
  μ93 6.09 5.91 7.21 4.88 1.73 3.69
  μ07 3.48 9.82 2.00 7.69 12.55 − 3.88
  μ14 9.13 6.73 4.74 15.44 9.13 3.94
Nighttime σ93 24.59 39.88 48.82 16.99 22.88 35.55
  σ07 23.07 22.41 15.88 36.71 49.02 16.55
  σ14 16.40 27.25 15.89 40.55 47.64 15.66
  μ93 − 11.34 − 19.78 − 36.86 3.15 − 6.79 − 27.47
  μ07 6.47 14.75 4.51 29.18 43.54 12.28
  μ14 6.20 6.65 − 3.42 37.50 42.83 8.65
  1. We provide statistics for the full day, daytime (0600–1800 LT), and nighttime (1800–0600 LT). The model with the best RMSE is underlined