Title :
A comparison of cloud models (EM wavescattering)
Author :
Gerace, G.C. ; Smith, E.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
Five different cloud models are compared over a broad frequency range. They are the model of K.L. Gunn and T.W. East (1954), the model of H.J. Liebe et al. (1989), D.H. Staelin´s (1966) model, S. Slobin´s (1982) model, and the model of E.E. Altshuler and R. Marr (1989). A short tutorial review of the theoretical basis and limitations of each cloud model is included. It is shown that the models all tend to agree at frequencies below 40 GHz, and for light to medium cloud conditions; however, above 10 GHz and for heavy to very heavy clouds, the models diverge.<>
Keywords :
Rayleigh scattering; clouds; electromagnetic wave absorption; electromagnetic wave scattering; radiowave propagation; tropospheric electromagnetic wave propagation; 10 GHz; 40 GHz; Altshuler model; EHF; EM wavescattering; Gunn-East model; Liebe model; Mie absorption; Rayleigh scattering; SHF; Slobin model; Staelin model; cloud attenuation; cloud models; Attenuation; Clouds; Dielectric losses; Equations; Frequency; Gunn devices; Predictive models; Refractive index; Temperature dependence; Temperature distribution;
Journal_Title :
Antennas and Propagation Magazine, IEEE
