Electromagnetic scattering by oscillating rain drops of asymmetric shapes

Author

Sekeljic, Nada J. ; Manic, Ana B. ; Chobanyan, Elene ; Thurai, Merhala ; Bringi, V.N. ; Notaros, Branislav M.

Author_Institution

Electr. & Comput. Eng, Colorado State Univ., Fort Collins, CO, USA

fYear

2014

fDate

6-11 July 2014

Firstpage

1572

Lastpage

1573

Abstract

Computational electromagnetic analysis of scatting by oscillating rain drops with asymmetric shapes is presented. Mixed-mode oscillations of drops are attributed to sustained drop collisions in events having a highly organized line convection embedded within a larger rain system. The scattering matrix and differential reflectivity of drops are dependent on the particular oscillation modes and different time instants within the oscillation cycle. The results also demonstrate the superiority of the higher order method of moments over the conventional discrete dipole approximation method in oscillating rain drop analysis.

Keywords

S-matrix theory; approximation theory; atmospheric electromagnetic wave propagation; computational electromagnetics; method of moments; rain; asymmetric shapes; computational electromagnetic analysis; differential drop reflectivity; discrete dipole approximation method; drop collisions; electromagnetic scattering; higher order method of moments; larger rain system; line convection; mixed-mode oscillations; oscillating rain drops; scattering matrix; Computational modeling; Mathematical model; Method of moments; Oscillators; Rain; Scattering; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905112

Filename

6905112