Open Access
Table 2.
Number of common days for various pairs of the 9 Ca II K archives analysed in this study.
| Ar | Ko | MD | MM | MW | Mi | Rome/PSPT | Sc/WS | |
|---|---|---|---|---|---|---|---|---|
| Ar | 3573 | 2218 | 617 | 1308 | 2194 | 839 | 0 | 109 |
| Ko | 2218 | 18963 | 4687 | 2820 | 8025 | 2418 | 33 | 242 |
| MD | 617 | 4687 | 14512 | 748 | 3284 | 781 | 2253 | 159 |
| MM | 1308 | 2820 | 748 | 4901 | 2915 | 1268 | 0 | 172 |
| MW | 2194 | 8025 | 3284 | 2915 | 13491 | 2083 | 0 | 256 |
| Mi | 839 | 2418 | 781 | 1268 | 2083 | 3987 | 0 | 127 |
| Rome/PSPT | 0 | 33 | 2253 | 0 | 0 | 0 | 3287 | 0 |
| Sc/WS | 109 | 242 | 159 | 172 | 256 | 127 | 0 | 411 |
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