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An asymptotic closure theory for irradiance in the sea and its inversion to obtain the inherent optical properties

ScholarsArchive at Oregon State University

Field Value
Title An asymptotic closure theory for irradiance in the sea and its inversion to obtain the inherent optical properties
Names Zaneveld, J. Ronald (creator)
Date Issued 1989 (iso8601)
Abstract An expression is derived for the rate at which the diffuse attenuation coefficient for vector
irradiance approaches its asymptotic value in a homogeneous medium. The asymptotic approach
rate is shown to be a function of boundary conditions at the surface and the asymptotic diffuse
attenuation coefficient which is an inherent optical property. The asymptotic approach rate is then
used to derive the vertical structure of the vector and scalar irradiances, the vector and scalar
diffuse attenuation coefficients, the average cosine of the light field, and the remotely sensed
reflectance at the surface, based only on the surface values of the vector and scalar irradiances and
the vector and scalar diffuse attenuation coefficients. This theory is inverted and combined with
previously derived radiative transfer relations to show that in principle the vertical structure of
the absorption, scattering, attenuation, and backscattering coefficients can be derived from the
vertical structure of the scalar and vector irradiances and the nadir radiance. An example for the
western North Atlantic Ocean is provided.
Genre Article
Identifier Zaneveld, J. V. (1989). An asymptotic closure theory for irradiance in the sea and its inversion to obtain the inherent optical properties [Electronic version]. Limnology and Oceanography, 34(8), 1442-1452.

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