OCEAN COLOR ANALYSIS OF BOHAI BASED ON MERIS IMAGES

摘要

Utilizing reduced resolution MERIS images of April, 2005, October, 2003 and December, 2003, this paper calculates statistical quantities such as maximum, minimum, mean and standard deviation and makes a comparison of MERIS ocean color information obtained from three bays of Bohai: Liaodong Bay, Bohai Bay and Laizhou Bay. Also, by comparing MERIS ocean color interpretation results with in situ observations, we found: (1) Liaodong Bay is the clearest one among the three bays of Bohai. Bohai Bay is more turbid than Liaodong Bay, but its optical property seems much more homogeneous. Laizhou Bay has higher reflectance, or because the Yellow River carries a large amount of inorganic suspended matter into Bohai. (2) From the consistency between the MERIS image interpretation and in situ data, it can be concluded that MERIS data has the potential to extract ocean color information quantitatively.