| albedo |
the ratio of reflected to incident light
Ãâó: wordnet.princeton.edu/perl/webwn
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| albedo |
The albedo is a measure of reflectivity of a surface or body. It is the ratio of electromagnetic radiation (EM radiation) reflected to the amount incident upon it. The fraction, usually expressed as a percentage from 0% to 100%, is an important concept in climatology and astronomy. This ratio depends on the frequency of the radiation considered: unqualified, it refers to an average across the spectrum of visible light. ...
Ãâó: en.wikipedia.org/wiki/Albedo
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| albedo |
A description of a surface's reflective properties.
Ãâó: highered.mcgraw-hill.com/sites/0070294267/student_...
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| albedo |
The ratio of reflected flux density to incident flux density, referenced to some surface. Albedos commonly tend to be broadband ratios, usually referring either to the entire spectrum of solar radiation, or just to the visible portion. More precise work requires the use of spectral albedos, referenced to specific wavelengths. Visible albedos of natural surfaces range from low values of 0.04 for calm, deep water and overhead sun, to > 0.8 for fresh snow or thick clouds. ...
Ãâó: amsglossary.allenpress.com/glossary/browse
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| albedo |
or solar reflectance, is a measure of a material's ability to reflect sunlight (including the visible, infrared, and ultraviolet wavelengths) on a scale of 0 to 1. An albedo value of 0.0 indicates that the surface absorbs all solar radiation, and a 1.0 albedo value represents total reflectivity. EPA ENERGY STAR specifies an albedo of 0.65 or higher for low-slope roof applications and 0.25 for sloped roofs.
Ãâó: www.epa.gov/heatisland/resources/glossary.html
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