Cos 0s

n. L = jAb n. L (A,). S(A). dA Ms. Es= \Xb Ms. Es (A). S(A). dA

where, L (A) is the spectral radiance reflected from the surface (W/m2/Sr/Mm); S (A) is the spectral response of the filter function; Es (A) is the normal spectral irradiance coming from the sun (W/m2/Mm).

Goita and Royer (1992) suggested the following equation for computation of albedo, using atmospherically uncorrected reflectance :

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