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Outline
To investigate the correlation between precipitable water vapor (PWV) and aerosol optical depth (AOD), a novel AOD estimation model was developed based on PWV. The model incorporates not only a linear relationship between PWV and AOD but also accounts for the periodic characteristics observed in the residuals of the linear fit. Utilizing high-precision PWV and AOD data from 20 stations in Yunnan from 2016 to 2019, the model was constructed and validated. The results reveal a strong lagged correlation between PWV and AOD in the region, with an average correlation coefficient of 0.82. The proposed model achieved excellent performance in AOD estimation, both in internal and external validations, yielding a mean standard deviation (STD) of 0.11 mm and a root mean square error (RMSE) of 0.12 mm. This model effectively paves the way for estimating high-precision AOD from PWV, thereby opening up new avenues for atmospheric environmental monitoring and research using GNSS remote sensing.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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