Efficient Calculation Of Orientationally Averaged Scattering From Complex-Geometry Ice Particles

Keywords

Characteristic basis function method; DDSCat; Discrete dipole approximation; Scattering by snow

Abstract

A direct-solver based domain decomposition method is applied to efficiently compute orientationally averaged scattering efficiencies from complex-shaped ice pristine and aggregation. This numerically powerful method, known as the characteristic basis function method (CBFM), is based on the generation of a new set of basis function adapted to the geometry of the scatterer, in order to significantly reduce the numerical size of the EM problem. Being better adapted to multiple excitation problems, the CBFM enables us to achieve a significant reduction in CPU time in comparison to DDScat, a widely used implementation of the discrete dipole approximation (DDA), while maintaining a satisfactory level of accuracy.

Publication Date

12-1-2017

Publication Title

International Geoscience and Remote Sensing Symposium (IGARSS)

Volume

2017-July

Number of Pages

4471-4474

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/IGARSS.2017.8127992

Socpus ID

85041844405 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85041844405

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