Title :
Atmospheric effects due to different particle shapes on propagation
Author :
Yildirim, O. ; Okulu, Hava Harp
Author_Institution :
Dept. of Electron., Turkish Airforce Acad., Istanbul, Turkey
Abstract :
It is known that the attenuation of electromagnetic waves by hydrometeors in the atmosphere may result from both absorption and scattering, depending on the size and shapes. When the particles are small with respect to wavelength, attenuation is considerably simplified for small particles. In this study, the attenuation of electromagnetic waves at millimeter wavelengths has been calculated for isotropic dielectric geometric shapes such as discs, rods, and spheres. The modified Rayleigh-Gans approach is applied for calculation of attenuation due to geometric shapes whose physical size are small compared to wavelength
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; millimetre wave propagation; tropospheric electromagnetic wave propagation; absorption; atmospheric effect; attenuation; discs; electromagnetic waves; hydrometeors; isotropic dielectric geometric shapes; millimeter wavelength; modified Rayleigh-Gans approach; particle shapes; propagation; rods; size; spheres; Atmosphere; Atmospheric waves; Attenuation; Dielectrics; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic wave absorption; Particle scattering; Rayleigh scattering; Shape;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516692
