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JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, 25 (9), 1556-1567, 2008
Multiple scattering effects in pulsed radar systems: an intercomparison study.
A. Battaglia, S. Kobayashi, S. Tanelli, E. Im, and C. Simmer
Abstract
In this paper, two different numerical methods capable of computing multiple scattering effects in
pulsed-radar systems are compared. Both methods are based on the solution of the time-dependent vectorial
form of the radiative transfer equation: one exploits the successive order of scattering approximation,
the other a forward Monte Carlo technique.
Different benchmark results are presented (including layers of monodisperse spherical water and ice
particles), which are of specific interest for W-band spaceborne cloud radars such as CloudSat’s or Earth-
CARE’s cloud profiling radars. Results demonstrate a good agreement between the two methods. The pros
and cons of the two models are discussed, with a particular focus on the validity of the second order of
scattering approximation.
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