reflectance
Quick Summary
Reflectance is the fraction of incident radiant flux that a surface reflects, varying with the wavelength of the radiation. In physics, when a wave or particle hits a surface, the angle of incidence is the angle it makes with a line perpendicular to that surface. The law of reflection states that the angle of the reflected ray equals the angle of the incident ray, with both rays lying in the same plane as the normal line.1234
Different materials have unique reflectance properties. For instance, fresh white snow has a high albedo (reflectivity), reflecting most sunlight, while black asphalt absorbs more and becomes hot. Reflection can be regular, as seen with mirrors, or diffuse, where light rays scatter in many directions from rough surfaces, allowing us to see most illuminated objects.15364
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geoengineering…technologies that would increase the reflectance of incoming solar radiation, thus reducing the heating effect of sunlight upon Earth’s surface and lower atmosphere. However, altering Earth’s heat budget by reflecting more sunlight back into space might offset rising temperatures but would do nothing to counter the rising concentration of CO2…
Read More…technologies that would increase the reflectance of incoming solar radiation, thus reducing the heating effect of sunlight upon Earth’s surface and lower atmosphere. However, altering Earth’s heat budget by reflecting more sunlight back into space might offset rising temperatures but would do nothing to counter the rising concentration of CO2…
Read More- geoengineeringProposals to increase solar reflectance
…schemes that could increase the reflectance of incoming solar radiation include raising ground-level albedo, injecting sulfur particles into the stratosphere, whitening marine clouds, and delivering millions of tiny orbital mirrors or sunshades into space. It is important to note that a great deal of debate surrounds each of these
Read More…schemes that could increase the reflectance of incoming solar radiation include raising ground-level albedo, injecting sulfur particles into the stratosphere, whitening marine clouds, and delivering millions of tiny orbital mirrors or sunshades into space. It is important to note that a great deal of debate surrounds each of these
Read More