Open Access
Table 3
The five largest and the five smallest sums of GIC due to an electric field scaled to the mean of 1 V/km in the area of three different power grids. One-minute geomagnetic data of 1994–2015 are used. Two different ground conductivity models given by Table 1 are applied.
| Sum(GIC) (A) | |
|---|---|
| Finland 1978–1979 ground model of block 25 day and time (UT) | |
| 20150410 00:53 | 1164.1 |
| 20120428 23:19 | 1156.8 |
| 20100120 16:50 | 1155.8 |
| 20130525 19:56 | 1155.7 |
| 20140301 22:10 | 1141.6 |
| … | |
| 20090101 00:00 | 538.7 |
| 20011022 18:17 | 525.0 |
| 20121110 21:35 | 522.7 |
| 19961001 00:00 | 483.2 |
| 19960930 23:59 | 481.2 |
| Finland 1978–1979 3-block ground model day and time (UT) | |
| 20040603 21:36 | 1141.5 |
| 20130525 19:56 | 1136.0 |
| 20100412 01:18 | 1109.3 |
| 20150601 00:31 | 1076.1 |
| 20110610 23:15 | 1075.5 |
| … | |
| 20120616 22:50 | 536.5 |
| 19961001 00:00 | 499.7 |
| 19990922 22:23 | 489.0 |
| 19960930 23:59 | 486.5 |
| 19950210 23:12 | 476.2 |
| Finland 2016 ground model of block 25 day and time (UT) | |
| 20000930 23:05 | 1747.6 |
| 20050507 23:34 | 1730.1 |
| 19980217 22:58 | 1701.9 |
| 20151220 16:18 | 1698.8 |
| 19950502 17:07 | 1695.5 |
| … | |
| 20110929 02:28 | 1055.2 |
| 20140211 22:06 | 1039.7 |
| 19950413 23:43 | 1038.6 |
| 20030922 19:06 | 1017.8 |
| 20091114 23:40 | 1007.7 |
| Finland 2016 3-block ground model day and time (UT) | |
| 19950502 17:07 | 1797.3 |
| 20000122 23:01 | 1780.6 |
| 20041107 23:31 | 1771.3 |
| 20030727 00:40 | 1701.0 |
| 20000406 18:09 | 1690.9 |
| … | |
| 20070415 00:08 | 1035.4 |
| 20120530 00:14 | 1019.9 |
| 20140903 21:11 | 1007.1 |
| 20120511 01:38 | 1000.9 |
| 20140221 23:18 | 962.0 |
| Nordic ground model of block 25 day and time (UT) | |
| 20130715 00:30 | 8618.4 |
| 20120712 01:09 | 8485.0 |
| 20060321 17:42 | 8454.2 |
| 20090629 02:02 | 8375.4 |
| 20150816 00:02 | 8364.2 |
| … | |
| 20010822 21:36 | 5949.5 |
| 20030529 22:27 | 5909.1 |
| 20080328 18:05 | 5882.7 |
| 19991117 21:13 | 5872.5 |
| 20030330 20:15 | 5871.5 |
| Nordic 3-block ground model day and time (UT) | |
| 20090629 02:03 | 9088.4 |
| 20060321 17:42 | 9087.3 |
| 20151009 12:10 | 8785.3 |
| 20150816 00:02 | 8744.5 |
| 20041112 17:54 | 8730.3 |
| … | |
| 20140221 23:18 | 6233.6 |
| 19981114 02:22 | 6233.4 |
| 19980411 22:10 | 6232.0 |
| 19980505 03:57 | 6231.0 |
| 20091213 20:20 | 6191.2 |
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