Yiren Wang, Ming Yang, Daxin Liu, Yingwei Xia, Wanyi Xie, Hongkun Wang, Yong Liu, Dong Liu. Development and Data Analysis of Dual-Band All-Sky Cloud Cover Observation System[J]. Acta Optica Sinica, 2023, 43(6): 0612001
- Acta Optica Sinica
- Vol. 43, Issue 6, 0612001 (2023)
Fig. 1. Structure diagram of dual-band automatic cloud cover observation system. (a) Schematic diagram; (b) physical picture
Fig. 2. All-sky cloud images. (a) Visible light band; (b) infrared band
Fig. 3. Sky images with different exposure values. (a) Cloudy sky; (b) clear sky
Fig. 4. Atmospheric window characteristics
Fig. 5. SegCloud segmentation results of visible light cloud images
Fig. 6. Clear sky background radiation simulation. (a) Parameter fitting; (b) background simulation result
Fig. 7. Segmentation results of infrared cloud images
Fig. 8. Correlation analysis of visible light and infrared cloud cover. (a) Data of August; (b) data of September; (c) data of October
Fig. 9. Correlation analysis of observation results of different cloud types. (a) High cloud data; (b) middle cloud data; (c) low cloud data
Fig. 10. Statistical distributions of satellite cloud cover data and equipment data. (a) Data of August; (b) data of September; (c) data of October
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Table 1. Correlation analysis of visible light and infrared cloud cover
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Table 2. Correlation analysis of observation results of different cloud types
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Table 3. Comparison results of manual and equipment observation data
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Table 4. Comparison of satellite data and equipment observation data
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