Abstract:
Situated in the eastern and northeastern regions and subjected to similar oceanic processes, the inshore waters north of 20 degrees N and east of 65 degrees E are more optically complex than the offshore waters and waters south of 20 degrees N and east of 65 degrees E. This has been observed through the analysis of variations of the remote sensing reflectance (R-rs(lambda)) in the optical spectrum of Electromagnetic radiation. The optical complexity has further been studied through the examination of optically active substances (OAS) such as chlorophyll-a, suspended sediment and coloured dissolved organic matter ( CDOM). It is found that CDOM is the significant component in making the area optically nonlinear. For the first time multi-spatial/temporal band-ratio algorithms are developed to map OAS from these waters through Ocean Colour Monitor flown on IRS-P4 satellite.
