E. Guemene Dountio1,2 *, D. Njomo2 , Efa
Fouda1 and A. Simo1
1MINRESI/IRGM/LRE, Ministry of Scientific Research and Innovation,
Cameroon
2 University of Yaounde I, Faculty of Science, Department of Physics,
LATEE, Cameroon
Abstract. In order to produce simulated data on solar
irradiation on the
earth's surface, we attempted to improve a tridimensional radiative
transfer
model which takes into account different inhomogeneities of the
atmosphere.
Those inhomogeneities have been shown to have a significant effect on
solar
radiation on the earth's surface.
In this paper, the results of the model are compared with
experimental
solar data and improvements are made on the model to match the data. Two
scales were used to compare numerical results with experimental data. A
good
correlation was found in the daily scale. For the hourly scale, a
polynomial
correlation was established between numerical data and experimental
data.
Keywords: radiative transfer - scattering - atmospheric effects methods :numerical