Fig. 1. Study region and samples

Fig. 2. The drone with hyperspectrometer and the angle of collecting sky light

Fig. 3. Normalized coefficient k

Fig. 4. Normalized radiance curve

Fig. 5. Flowchart of data processing

Fig. 6. Pearson Correlation Coefficient and p_value

Fig. 7. The reflectance of hyperspectral and Scores of spectral reflectance by a quality assurance system

Fig. 8. The mean absolute percentage difference of reflectance

Fig. 9. Predicting suspended concentration based on different reflectance

Fig. 10. Simulation result based on Hydrolight