Fig. 1. Station distribution

Fig. 2. Histogram of measured POC concentration

Fig. 3. Statistical histogram of measured SPM

Fig. 4. Statistical histogram of measured CHL

Fig. 5. Scatter plots of measured SPM and POC concentration

Fig. 6. Scatter plots of measured CHL and POC concentration

Fig. 7. Measured remote-sensing reflectance spectrum

Fig. 8. Scatter plots of retrieved and measured POC concentration. (a) Model 1; (b) model 2

Fig. 9. Scatter plot of measured water reflectivity

Fig. 10. Scatter plots of retrieved POC concentration based on synchronous GOCI and SPM measured data

Fig. 11. Hourly POC concentration distributions on 2011-04-11. (a) 8:30; (b) 9:30; (c) 10:30; (d) 11:30; (e) 12:30; (f) 13:30; (g) 14:30

Fig. 12. ASCAT wind field data on 2011-04-11. (a) Ascending; (b) descending

Fig. 13. ASCAT wind field data of the sea area near the Yellow River estuary. (a) 2012-11-17; (b) 2012-11-18; (c) 2012-11-20

Fig. 14. Sea surface current of the sea area near the Yellow River estuary. (a) 2012-11-17; (b) 2012-11-18; (c) 2012-11-20

Fig. 15. POC concentration distributions before and after strong wind. (a) 2012-11-17 11:30; (b) 2012-11-19 11:30

Fig. 16. Filtered POC concentration distribution difference

Fig. 17. POC concentration distributions based on MODIS seasonal average products. (a) Winter; (b) spring; (c) summer; (d) autumn

Fig. 18. POC concentration distributions based on MODIS monthly average products