The Polar Cap (PC) index combination, PCC: relations to solar wind properties and global magnetic disturbances | Journal of Space Weather and Space Climate

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Table 1

Correlation coefficients and regression results for Kp-PC relations. Epoch 1998–2018.

Parameter	PCC	PCN	PCS	PCA¹⁾	PCW²⁾	PCU³⁾	mV/m
Correlation	0.815	0.758	0.770	0.797	0.795	0.736
Slope (S)	0.986	0.813	0.843	0.903	0.902	0.764	(mV/m)⁻¹
Intercept (Kp₀)	0.847	1.122	1.052	1.025	1.021	1.145

¹⁾

Average of available PCN and PCS values.

²⁾

Winter values of PCN or PCS index values.

³⁾

Summer values of PCN or PCS index values.

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