NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Light Scattering by Gaussian Particles: A Solution with Finite-Difference Time Domain TechniqueThe understanding of single-scattering properties of complex ice crystals has significance in atmospheric radiative transfer and remote-sensing applications. In this work, light scattering by irregularly shaped Gaussian ice crystals is studied with the finite-difference time-domain (FDTD) technique. For given sample particle shapes and size parameters in the resonance region, the scattering phase matrices and asymmetry factors are calculated. It is found that the deformation of the particle surface can significantly smooth the scattering phase functions and slightly reduce the asymmetry factors. The polarization properties of irregular ice crystals are also significantly different from those of spherical cloud particles. These FDTD results could provide a reference for approximate light-scattering models developed for irregular particle shapes and can have potential applications in developing a much simpler practical light scattering model for ice clouds angular-distribution models and for remote sensing of ice clouds and aerosols using polarized light. (copyright) 2003 Elsevier Science Ltd. All rights reserved.
Document ID
20050040864
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Sun, W.
Nousiainen, T.
Fu, Q.
Loeb, N. G.
Videen, G.
Muinonen, K.
Date Acquired
August 22, 2013
Publication Date
January 1, 2003
Publication Information
Publication: JQSRT
Subject Category
Earth Resources And Remote Sensing
Funding Number(s)
CONTRACT_GRANT: NAG1-2318
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available