Fig. 8


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Kp⁡max and Kp⁡min prediction error plotted against the CME input speed, at times showing large errors given the range of the index from 0 to 9. There is a general overprediction of Kp⁡max for CME input speeds above ≈1000 km s−1, whereas the Kp⁡min forecast tends underpredict below ≈1000 km s−1.

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