valonheijastuskykyä
Valonheijastuskykyä, often translated as albedo, is a measure of the diffuse reflection of solar radiation, usually expressed as a fraction or percentage. It describes how much of the incident solar energy is reflected back into space by a surface. Surfaces with high albedo, such as snow and ice, reflect a large proportion of sunlight, appearing bright. Conversely, surfaces with low albedo, like asphalt or dark forests, absorb more solar energy and appear darker.
The albedo of a surface is not static. It can change depending on factors such as the
Albedo plays a crucial role in regulating Earth's temperature and climate. Areas with high albedo reflect more