Table 1
Storms used to optimise the model together with their corresponding Kp, local K-index maxima in Ireland during each storm. Storms of varying strength were studied to see whether storm strength influenced the padding or correction curve. The magnetometer sites (see Fig. 1) used for the SECS interpolation are given in the right column.
| Storm | Local K maxa | Kp maxb | Local stations |
|---|---|---|---|
| 17–18 March 2015 | 7 | 8− | BIR, VAL |
| 22–23 June 2015 | 8 | 8+ | BIR, VAL |
| 08–09 May 2016 | 6 | 6+ | BIR, VAL |
| 07–08 September 2017 | 7 | 8+ | ARM, BIR, VAL |
| 27–28 September 2017 | 5 | 6+ | ARM, BIR, VAL |
| 26–27 August 2018 | 7 | 7+ | ARM, BIR, VAL |
From German Research Centre for Geosciences (GFZ, https://www.gfz-potsdam.de/en/kp-index/).
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