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Description:
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Three investigations were conducted on the nature of the radiance field in clear ocean
water . It is important to understand the sunlight intensity below the sea surface because
this leads to an understanding of how ocean creatures navigate in shallow and deep
water . The nature of the radiance field is also gives an understanding of the living
environment for ocean animals . Hydrolight 4 .1 , a simulation software developed by
Curtis D . Mobley , was used to calculate the spectral radiance in clear ocean water for
multiple wavelengths from the surface down through the asymptotic region . The first
study found , as expected , that Raman scattering has little effect on wavelengths of light
that are less than 500 nm . The effect of Raman scattering increases with increasing
wavelength , and with increasing depth . The second study found the region of the water
column where the radiance field is asymptotic . The third investigation found the effect
of changing the mean square slope , or variance of the water -wave slope distribution .
This effect is greatest near the surface and for a more truncated mean square slope
integral . There are three peaks in percent difference to the ideal case , near the surface ,
one in the solar beam and the others near the critical angle of water . |