Reproducing electric field observations during magnetic storms by means of rigorous 3-D modelling and distortion matrix co-estimation

Earth, Planets and Space

Table 4 Distortion matrix and statistics for observatory KNY

Storm	G _xx	G _xy	G _yx	G _yy	$R_{x}^{2}$	$R_{y}^{2}$
Apr-00	0.42	−0.24	−0.19	0.78	0.72	0.82
Jul-00	0.54	−0.19	−0.70	0.66	0.68	0.86
Aug-00	0.53	−0.09	−0.65	0.56	0.60	0.91
Mar-01	0.62	−0.17	−0.55	0.70	0.85	0.91
Oct-03	0.34	0.26	−0.57	0.97	0.71	0.90
Nov-03	0.55	0.24	−0.60	1.04	0.65	0.95
Mean	0.50	−0.03	−0.54	0.78	0.70	0.89
Standard deviation	0.10	0.23	0.18	0.19	0.08	0.05