forward scatter


forward scatter
The scattering of radiated energy into the hemisphere of space bounded by a plane normal to the direction of the incident radiation and lying on the side toward which the incident radiation was advancing. The opposite of backward scatter. In Rayleigh scattering, forward scatter accounts for half of the total. As the particle size increases above the Rayleigh limit, an increasing fraction of the total scattering is forward scattering. Rayleigh scattering is normal scattering of radiation by particles whose ruling size is 0.1 or less than that of the radiant wavelength. The scattering process may be polarization sensitive (i.e., incident waves that are identical in every respect but their polarization may be scattered differently).
Troposphere scatter propagation.

Aviation dictionary. 2014.

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