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Table 4
Individual spot decay and growth rates.
| Season | Spot | DI # | D (SH/day) | Type |
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| 2006/07 | A (blue) | 1–6 | −0.025 ± 0.003 | decay |
| B (red) | 1–6 | + 0.017 ± 0.004 | growth | |
| C (green) | 2–5 | + 0.020 ± 0.012 | growth | |
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| 2007/08 | A (blue) | 8–10 | −0.021 ± 0.012 | decay |
| B (green) | 8–10 | + 0.014 ± 0.007 | growth | |
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| 2008/09 | A (blue) | 13–17 | + 0.026 ± 0.004 | growth |
| B (green) | 13–17 | −0.020 ± 0.003 | decay | |
| B (green) | 18–19 | + 0.013 ± 0.009 | growth | |
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| 2009/10 | A (blue) | 22–24 | −0.019 ± 0.016 | decay |
| B (green) | 20–22 | + 0.019 ± 0.007 | growth | |
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| 2010/11 | A (blue) | 25–28 | −0.021 ± 0.008 | decay |
| B (green) | 25–28 | −0.020 ± 0.007 | decay | |
| C (red) | 25–28 | + 0.017 ± 0.009 | growth | |
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| 2011/12 | A (blue) | 31–33 | −0.021 ± 0.012 | decay |
| B (green) | 30–32 | −0.021 ± 0.011 | decay | |
| B (green) | 32–36 | + 0.030 ± 0.006 | growth | |
| C (red) | 30–33 | + 0.023 ± 0.006 | growth | |
| C (red) | 33–36 | −0.024 ± 0.005 | decay | |
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| 2006-12 | ⟨ − 0.022 ± 0.002 ⟩ | decay | ||
| ⟨ + 0.021 ± 0.002 ⟩ | growth | |||
Notes. Derived values represent a linear area decay law of form dA(t)/dt = D. D is given in solar hemispheres (SH) per day (1 SH=3.05 Gm2).
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