Title :
Effects of drop size and temperature on forward and backward scattering of microwaves by raindrops
Author :
Upton, S.A.J. ; Evans, Barry G. ; Holt, A.R.
Author_Institution :
University of Essex, Departments of Electrical Engineering Science, Colchester, UK
Abstract :
An explanation is given for the peak sensitivity around 9¿11 GHz to drop-size distribution and temperature of microwave attenuation due to a rain-filled medium. The sensitivity of radar reflectivity, differential radar reflectivity and differential radar cross-section to drop-size and temperature are also given. It is shown that at frequencies in excess of about 25 GHz the vertical radar cross-section of water drops can be greater than the horizontal.
Keywords :
electromagnetic wave scattering; microwaves; radar cross-sections; radiowave propagation; rain; tropospheric electromagnetic wave propagation; EM wave scattering; GHz 0009 to 0011; SHF; backward scattering; drop size effects; forward scattering; microwave attenuation; microwave scattering; radar cross sections; rain; temperature effects;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790543
