Research Article
Simulation of Threshold UV Exposure Time for Vitamin D Synthesis in South Korea
Table 2
Mean and standard deviation of CMFobs with respect to the cloud categories from the numerical weather prediction results.
| Cloud categories | Cloud amount | CMFobs | CMF | Seoul | Pohang |
| No clouds | 0∼2 | 0.812 (±0.177) | 0.859 (±0.196) | 0.984 | Partly cloudy 1 | 3∼5 | 0.748 (±0.186) | 0.828 (±0.194) | 0.918 | Partly cloudy 2 | 6∼7 | 0.652 (±0.186) | 0.765 (±0.225) | 0.784 | Overcast 1 | 8∼9 | 0.501 (±0.191) | 0.570 (±0.221) | 0.579 | Overcast 2 | 10 | 0.267 (±0.162) | 0.307 (±0.185) | 0.450 |
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