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    Photosynthetically available radiation in the central and eastern Arabian Sea

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    Curr_Sci_71_883.pdf (1.066Mb)
    Date
    1996
    Author
    Suresh, T.
    Desa, E.
    Desai, R.G.P.
    Jayaraman, A.
    Mehra, P.
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    Abstract
    In this article, we present the analysis of the photosynthetically available radiation (PAR, 400-700 mm) in the eastern and central Arabian Sea (21 degrees 30'N, 64 degrees E to 12 degrees N, 74 degrees E) during February-March, 1995 using data collected with quantum PAR sensor and maritime solar radiation models for clear sky. The peak values observed were in the range of about 1700 to 1830 mu mole s sup(-1) m sup(-2) or equivalent to about 365 to 435 Wm sup(-2) . The radiative transfer models of Gregg and Carder, and Frouin et al. were used to investigate the relationship between the quantum and energy of solar radiation available in the PAR region. The avarage ratio of this quanta per energy was found to be about 4.2 mu mole W sup(-1) s sup(-1) . Aerosol optical depth obtained using the sunphotometer at 498 nm for the region was found to vary from 0.07 to 0.19.
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    http://drs.nio.org/drs/handle/2264/2167
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