refractive index"(Or index of refraction; also absolute refractive index.) The ratio of the free- space speed of light c, a universal constant, to the phase velocity of a plane harmonic electromagnetic wave in an optically homogeneous, ...
Refractive index The ratio of the speed of light in a vacuum to its speed in a transparent medium.
Scatter The process by which small particles suspended in a medium of a different refractive index diffuse a portion of the incident radiation in all directions.
AngelsRadar echoes caused by birds, insects, and localized refractive index discontinuities.Angle of ReflectionThe angle at which a reflected ray of energy leaves a reflecting surface.
Refractive IndexA measure of the amount of refraction. Numerically equal to the ratio of wave velocity in a vacuum to a wave speed in the medium, i.e., n = c / v where: v is actual speed, and c is speed of light in a vacuum.
aerosol optical propertiesThe optical properties of aerosols, including asymmetry factor, phase-function, single-scattering albedo, refractive index, and backscatter fraction.
Fresnel Reflection The reflection of a radar signal from a single, dominating discontinuity of the refractive index, usually with a large horizontal extent.
Index of Refraction: See refractive index.
Index of Wetness: The ratio of precipitation for a given year over the mean annual precipitation..
As the width is unaffected (the angular width of image width remains that of the object because the refractive index gradient is vertical), the aspect ratio is altered and distant images appear vertically enlarged.
Radar echoes caused by birds, insects, and localized refractive index discontinuities.
Angle of Reflection ...
This is because the air near the heated ground becomes considerably hotter than the air above, causing refraction of light rays from the sky, since the refractive index of air depends on its density and therefore on its temperature.
 See also: Air, Temperature, Atmosphere, Radar, Water
  
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