1. The albedo-value is used to consider the environmental parameters when calculating the radiation on an inclined plane. It grows with an increasing reflectivity of the sourounding sourface.
2. Albedo is a non-dimensional, unitless quantity that indicates how well a surface reflects solar energy. Albedo varies between 0 and 1. Albedo commonly refers to the "whiteness" of a surface, with 0 meaning black and 1 meaning white. A value of 0 means the surface is a "perfect absorber" that absorbs all incoming energy. Absorbed solar energy can be used to heat the surface or, when sea ice is present, melt the surface. A value of 1 means the surface is a "perfect reflector" that reflects all incoming energy.
Reflection coefficient, Reflecting Power
Albedo, Tilt angle, Irradiance, Reflection
http://wiki.bildungsserver.de/klimawandel/index.php/Albedo_%28einfach%29 (1.); https://nsidc.org/cryosphere/seaice/processes/albedo.html (2.)
Author: Anas Naddour