Polarization‐related parameters for rain: Measurements obtained by radar

Averages and distributions of the rain parameters, cancellation and degree of orientation, are presented. The quantities were determined from observations of power and correlation with a polarization diversity radar using circular polarization at 16.5 GHz during the period 1971–1974. Data are given for a related quantity, “maximum cancellation.” The fact that this quantity is not invariant with range is shown to be evidence for the occurrence of incoherent transmission processes at 16.5 GHz.