Ground-reflected radiation and albedo

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Solar Energy (Journal of Solar Energy Science and Engineering); (USA)

DOI:https://doi.org/10.1016/0038-092X(90)90149-7· OSTI ID:6568557

Ineichen, P; Guisan, O; Perez, R ^[1]

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1. Univ. of Geneva (Switzerland) Atmospheric Science Research Center, Albany, NY (USA)

The diffuse radiation incident on an inclined plane is composed of both the ground-reflected radiation and the sky diffuse radiation. The evaluation of the sky diffuse radiation has already been described in many references. In this paper they focus on the ground-reflected radiation, its relation to insolation conditions and its evaluation by means of models. The authors used six data banks from the following four countries: Switzerland, France, The Netherlands, and the US. The authors investigated how the albedo depends on the amount and the composition of the incident radiation, on geometrical parameters such as the height and/or the azimuth of the sun and on meteorological parameters such as the humidity. They did not find any notable dependence. They also tested different models evaluating the ground-reflected radiation on tilted planes with corresponding measurements on an inverse horizontal plane (facing the ground) and on inclined planes. They came to the conservative conclusion that the best results are obtained when using a constant averaged measured albedo, for transposition to tilted surfaces, when assuming the ground-reflected radiation to be isotropic.

• OSTI ID: 6568557
• Journal Information: Solar Energy (Journal of Solar Energy Science and Engineering); (USA), Journal Name: Solar Energy (Journal of Solar Energy Science and Engineering); (USA) Vol. 44:4; ISSN SRENA; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140100* -- Solar Energy-- Resources & Availability
ALBEDO
COMPARATIVE EVALUATIONS
DIFFUSE SOLAR RADIATION
DIRECT SOLAR RADIATION
EUROPE
FRANCE
INSOLATION
MEASURING METHODS
NETHERLANDS
NORTH AMERICA
RADIATIONS
SOLAR FLUX
SOLAR RADIATION
STELLAR RADIATION
SWITZERLAND
USA
WESTERN EUROPE