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28 November 2006 Secchi depth analysis using bio-optical parameters measured in the Arabian Sea
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Secchi depth provides the oceanographer with the first hand information about transparency and penetration of light in the water. Here we present results of the Secchi depth and the optical properties measured in the Arabian Sea. Our analyses show spatial and temporal variability of Secchi depth and their dependence on the optical properties beam attenuation and diffuse attenuation the biological parameter of Chlorophyll. The in-situ measured inherent and apparent optical properties have been used to understand the underwater light properties and their relations to the Secchi depth in various water types. The Secchi depth model is validated using the measured optical properties. We also present an empirical method to determine Secchi depth from the satellite ocean color sensor, and the application of the same to the IRS-P4 OCM is found to provide comparable results to the measured values.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. Suresh, Puneeta Naik, Mangesh Bandishte, Elgar Desa, Antonio Mascaranahas, and S. G. Prabhu Matondkar "Secchi depth analysis using bio-optical parameters measured in the Arabian Sea", Proc. SPIE 6406, Remote Sensing of the Marine Environment, 64061Q (28 November 2006);

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