Applied Optics, 37, pp 2464-2472
A Practical Model for the Calculation of Multiply Scattered
Edwin W. Eloranta
University of Wisconsin
1225 W. Dayton St.
Madison, Wisconsin 53706
This paper presents an equation to predict the intensity of the
multiply scattered lidar return. Both the scattering cross section
and the scattering phase function can be specified as a function of
range. This equation applies when the cloud particles are larger than
the lidar wavelength. This approximation considers photon
trajectories with multiple small-angle forward scattering events and
one large-angle scattering which directs the photon back towards the
receiver. Comparisons with Monte Carlo simulations, exact double
scatter calculations, and lidar data demonstrate that this model
provides accurate results.
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