Table A.1.
Quality metrics for the NLFFF extrapolations using different λff.
| Region | λff | θj[deg] | Ediv/E |
|---|---|---|---|
| Full Volume | 0.05 | 31.2 | 4.2 × 10−3 |
| 0.10 | 26.9 | 3.8 × 10−3 | |
| 0.20 | 22.3 | 3.6 × 10−3 | |
| 0.40 | 18.1 | 3.3 × 10−3 | |
| 0.60 | 16.2 | 3.0 × 10−3 | |
| 0.80 | 16.3 | 3.5 × 10−3 | |
| Flare Region | 0.05 | 23.6 | 1.5 × 10−2 |
| 0.10 | 18.5 | 1.4 × 10−2 | |
| 0.20 | 15.3 | 1.3 × 10−2 | |
| 0.40 | 12.1 | 1.2 × 10−2 | |
| 0.60 | 10.7 | 1.2 × 10−2 | |
| 0.80 | 10.7 | 1.2 × 10−2 | |
| Weak-field Region | 0.05 | 17.3 | 5.6 × 10−2 |
| 0.10 | 17.3 | 5.6 × 10−2 | |
| 0.20 | 21.1 | 5.6 × 10−2 | |
| 0.40 | 17.9 | 4.9 × 10−2 | |
| 0.60 | 15.2 | 3.2 × 10−2 | |
| 0.80 | 17.3 | 5.6 × 10−2 | |
Notes. The metrics are evaluated for the full extrapolation volume, and for subvolumes covering the strong-field flare region (Fig. A.2, cyan box) and a weak-field region associated with the southern part of the dimming region (magenta box). The listed metrics are the current-weighted angle between the modeled magnetic field and electric current density (θj) and the fraction of total energy due to the violation of ∇ ⋅ B = 0 (Ediv/E).
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