Identify cloud types from satellite and sky images using visual features.
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Cloud genera | Ten genera (Ci Cc Cs Ac As Sc St Ns Cu Cb) | WMO Cloud Atlas 2017 |
| Étage | High 5–13 / mid 2–7 / low 0–2 km | WMO Cloud Atlas |
| Cb criteria | Vertical growth, fibrous top, thunder | GB/T 35224-2017 |
| Total cloud cover | Eighths (oktas) | WMO No.8 §4 |
| Satellite channels | Visible/IR/WV channels | Satellite product spec |
| Observation error | Nighttime error increases | WMO CIMO Guide |
云图识别是一款科学研究领域的在线工具。科学研究工具,采用标准科学公式,计算精准。