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Table 1.
Characteristic of the four extrapolation methods used in this work.
| Method 1 | Method 2 | Method 3 | Method 4 | |
|---|---|---|---|---|
| Photospheric magnetic maps | WSO | WSO | SOHO/MDI | NSO/GONG |
| Synoptic or synchronic | Synoptic | Synoptic | Synchronic | Synchronic |
| Treatment of photospheric maps | None | None | Flux-transport model (5) | ADAPT flux-transport model (6) |
| References for PFSS extrapolation method | (1), (2), (3) | (4) | (4) | (4) |
References. (1) Schatten et al. (1969), (2) Altschuler & Newkirk (1969), (3) Hoeksema et al. (1983), (4) Wang & Sheeley (1992), (5) Schrijver & De Rosa (2003), (6) Arge et al. (2013).
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