Water Color Remote Sensing (WCRS)

Project Description

Remote sensing data have been widely utilized to monitor water quality in oceans for decades. However, the application of remote sensing in monitoring inland turbid water is still challenging, due to the complicated composition of water constitutes in lakes or rivers. This study attempted to solve the above challenge by investigating the inherent optical and polarized properties of inland water body. The results can provide foundamental knowledge for radiation transmission and guide the development of algorithms for satellite monitoring of water quality in inland rivers and lakes.

Work Summary

My work in the water color remote sensing includes four parts:
(1) Developing a standardized workflow for in-situ measurement of the Inherent Optical Properties (IOPs) of water body;
(2) Remote sensing monitoring of Black Water Aggregation (BWA) in Lake Taihu;
(3) Measuring the Polarized Optical Properties (POPs) in inland water body.

Outcomes

Figure 1. Optical density curves of total suspended matters (TSM) and color dissolved organic matter

Figure 2. Black Water Aggregation areas in the Lake Taihu extracted from HJ-CCD satellite images.

References

Shen Q., Li J.S., Zhang B., Wu Y.H., Zou, L., and Wu T.X. 2016. Analyzing spectral characteristics of water involving in-situ multi-angle polarized reflectance and extraction of water-leaving radiance. Spectroscopy and Spectral Analysis, 36(10):3269-3273. [Access]

Zou, L., Zhang, B., Li, J., Shen, Q., Zhang, F., and Wang, G. 2014. A study on retrieval algorithm of black water aggregation in Taihu Lake based on HJ-1 satellite images. IOP Conference Series: Earth and Environmental Science 17(1):012100. DOI: 10.1088/1755-1315/17/1/012100. [Access]

Zhang, F., Zhang, B., Li, J., Shen, Q., Wu, Y., Wang, G., Zou, L., and Wang, S. 2014. Validation of a synthetic chlorophyll index for remote estimates of chlorophyll-a in a turbid hypereutrophic lake. International Journal of Remote Sensing 35(1):289-305. [Access]

Zou, L., Zhang, B., Li, J., Song, Y., Shen, Q., and Li, L. 2012, July. A comparative analysis of the ‘transmittance’ method between using integrating sphere and filter holders for measuring light absorption by aquatic particles. In 2012 IEEE International Geoscience and Remote Sensing Symposium (pp. 2567-2570). Ieee. DOI: 10.1109/IGARSS.2012.6350955. [Access]

Li, J., Zhang, B., Shen, Q., Zou, L., and Li, L. 2012, July. Monitoring water quality of Lake Taihu from HJ-CCD data using empirical models. In 2012 IEEE International Geoscience and Remote Sensing Symposium(pp. 812-815). Ieee. DOI: 10.1109/IGARSS.2012.6351438 [Access]