What is the approximate average planetary albedo for the Earth as a whole, indicating the fraction of sunlight reflected?
Answer
0.30
The Earth's overall estimated average planetary albedo is about 0.30, meaning approximately 30% of the sunlight hitting the planet is immediately reflected back into space.
Related Questions
What is the formal term for the measure of reflectivity that dictates how much solar energy bounces back into space versus how much is absorbed?What is the approximate average planetary albedo for the Earth as a whole, indicating the fraction of sunlight reflected?In its mathematical definition, what value signifies a perfect reflector that bounces back every photon it receives?Which surface type typically exhibits a high albedo (0.80 to 0.90) and is strongly associated with a cooling effect?What is the primary thermal consequence for surfaces that have a very low albedo, such as the open ocean?What dynamic element must scientists track continuously, beyond intrinsic material properties, to understand Land Surface Albedo (LSA)?How is the measurement of changing surface conditions like Land Surface Albedo (LSA) primarily achieved today?When ice or snow melts, exposing darker surfaces like open ocean water (albedo ~0.03), what powerful cycle is triggered?What crucial detail about albedo measurements must scientists consider when modeling the Earth's total energy budget?What is the practical local application of increasing albedo in built environments, such as using light-colored roofing?If a change in surface properties leads to a net increase in warming by reducing overall reflectivity, what type of climate feedback is this considered?