What is the earth’s albedo? Using satellite measurements accumulated since the late 1970s, scientists estimate Earth’s average albedo is about about 0.30. The maps above show how the reflectivity of Earth—the amount of sunlight reflected back into space—changed between March 1, 2000, and December 31, 2011.
What does albedo effect mean? The albedo effect on land. Illustration: Norwegian Polar Institute. Albedo is an expression of the ability of surfaces to reflect sunlight (heat from the sun). Light-coloured surfaces return a large part of the sunrays back to the atmosphere (high albedo). Dark surfaces absorb the rays from the sun (low albedo).
What has an albedo of 100%? Albedo is the percentage of solar radiation reflected by an object. The term is derived from the Latin albus, white. A pure white object would reflect all radiation that impinges on it and have an albedo of 100%.
What is albedo of the moon? The lunar albedo (fractional reflectivity) is only about 0.12 – in other words, over the visible spectrum, it reflects a mere 12% of the light hitting it, absorbing the rest.