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The nominal weather condition of outdoor at the sampling days
| Sampling time | General description | |
|---|---|---|
| Normal | Autumn term |
Calm and sunny Temp 10 °C/− 9 °C RH 32.1–68.5% WS 3.4–7.9 or < 3.4 WD: northwest or northeast |
| Spring term |
Calm and sunny Temp 30 °C/16 °C RH 52.7–62.2% WS 3.4–7.9 or < 3.4 WD: southeast |
|
| Special climate day |
Snowy Temp −8 °C/− 1 °C RH 60.2–68.5% WS 1.6–3.4 WD: northwest |
|
|
Windy Temp 4 °C/− 2 °C RH 43.9–49.2% WS 8.0–13.8 or > 13.8 WD: northwest | ||
