USE DIFFERENTIAL PHASE AS INFORMATION PARAMETERS IN WEATHER RADAR POLARIMETRY

Abstract

The paper theoretically justified the use of differential phase when radar is detected the drop-down rain of varying intensity and measuring its performance. Used heavy rainfall the particle shape as the geometrical model in the calculation of the orthogonal components of the electromagnetic waves reflected from the particle precipitation. It radiates non-polarized electromagnetic wave, which after interaction with polarized particles drop down rain according to the shape and orientation of the rain. A characteristic of the relationship of the electromagnetic wave from the radar volume drops rain falls is a polarization scattering matrix coefficients are determined by the shape, size, and orientation of the phase state of raindrops. Determined amplitude and phase orthogonal components of the reflected electromagnetic waves, allowing to obtain differential phase-sensitive not only to modify the pull-down rain, but also to an electromagnetic wave polarization parameters. The dependence of the differential phase of the intensity of rain falls in view of the orientation of raindrops.