Diurnal Changes Monitoring and Analysis of the Total Suspended Matters in Bohai Sea Using Geostationary Ocean Color Imager

Abstract

Since the launch of the world’s first geostationary satellite ocean color sensor, the Geostationary Ocean Color Imager (GOCI), it is possible to realize the hourly observations and trace the diurnal changes of color matters in target waters. In this paper, we first developed an empirical TSM retrieval algorithm of Bohai Sea based on in situ spectral data. Then we applied the algorithm to the GOCI images on September 13, 2015. Results showed that TSM concentration in Bohai Sea had a good relationship with band five of GOCI. The concentrations of TSM were high along the coast and low in the offshore areas. The concentrations were extremely high around Huanghe Reiver Delta, such as Bohai Bay and Laizhou Bay. The deviation analysis also showed a great diurnal changes around the north part of Bohai Bay and Laizhou Bay. This paper highlight the feasibility of using geostationary ocean color remote sensing to monitor short-term and regional color matters in coastal waters.