Earth, Planets and Space

Table 2 The model’s K and K _p indices prediction performance on the four selected individual storms

From: Empirical modeling of the storm time geomagnetic indices: a comparison between the local K and global Kp indices

Storm period	HerK		Kp
	RMSE	CC	RMSE	CC
24 to 28 July 2004	9.2842	0.81	10.2334	0.90
07 to 12 November 2004	9.2613	0.86	8.9464	0.92
14 to 17 May 2005	15.2374	0.65	14.3149	0.77
23 to 25 August 2005	9.4044	0.91	6.8211	0.94

The performance is evaluated using the root mean square errors (values of RMSE in the table are multiplied by 10) and correlation coefficients.

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