The REFRAC module calculates the amount of curvature a ray of light experiences as it passes over a complex terrain surface. Various surface profiles can be modeled, with refractive index gradient varying as a function of height above the local surface. Options allow either a spread of rays to be plotted or an observation angle to be determined when given target-observer orientations and the atmospheric structure.

PcEosael Overview
Alphabetical List of EOSAEL Modules
Functional List of EOSAEL Modules

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