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AGU: Geophysical Research Letters

 

Index Terms

  • Biogeosciences: Bio-optics
  • Oceanography: General: Remote sensing and electromagnetic processes
  • Oceanography: General: Upwelling and convergences
  • Computational Geophysics: Data analysis: algorithms and implementation
  • Computational Geophysics: Modeling

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 33, L15602, 5 PP., 2006
doi:10.1029/2006GL026026

Variability of remote sensing reflectance and implications for optical remote sensing—A study along the eastern and northeastern waters of Arabian Sea

Harilal B. Menon

Department of Marine Science, Goa University, Goa, India

Aneesh A. Lotliker

Department of Marine Science, Goa University, Goa, India

K. Krishna Moorthy

Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum, India

Shailesh R. Nayak

Marine Water and Resource Division, Space Application Center, Indian Space Research Organization, Ahmedabad, India

Situated in the eastern and northeastern regions and subjected to similar oceanic processes, the inshore waters north of 20°N and east of 65°E are more optically complex than the offshore waters and waters south of 20°N and east of 65°E. This has been observed through the analysis of variations of the remote sensing reflectance (Rrs(λ)) 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 non-linear. 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.

Received 11 February 2006; accepted 6 June 2006; published 2 August 2006.

Citation: Menon, H. B., A. A. Lotliker, K. K. Moorthy, and S. R. Nayak (2006), Variability of remote sensing reflectance and implications for optical remote sensing—A study along the eastern and northeastern waters of Arabian Sea, Geophys. Res. Lett., 33, L15602, doi:10.1029/2006GL026026.

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