Depolarisation due to snow at 11.6 GHz

Depolarisation events due to snow covering a period of three years on an 11.6 GHz, 18 km link employing linear and circular polarisation are presented. These are used to demonstrate the variability of wet and dry hydrometeor scattering. By deriving the equivalent differential phase-shift from the measurements it is possible to show the relative importance of differential phase and amplitude effects in depolarisation for the different hydrometeors.