Rain anisotropy prediction: Theory and experiment


  • Carlo Capsoni,

  • Dario Maggiori,

  • Emilio Matricciani,

  • Aldo Paraboni


Measurements of electromagnetic waves attenuation by intense rain at frequencies above 10 GHz can be used to estimate the rain anisotropy, which is an important factor in the prediction of depolarization (both in circular and linear polarization). This estimate, however, requires one to make some physical assumptions about some rain parameters such as the raindrop size distribution, the water temperature, the rain intensity profile along the radio path, and the distribution of the ellipsoidal drops orientation. This paper aims at estimating the uncertainties that arise from the lack of their knowledge. The study is based on experimental data that have been worked out in order to obtain the necessary physical information.