Random Errors in Wind and Precipitation Fall Speed Measurement by a Triple Doppler Radar System.

摘要

This paper presents the equations and pictorial examples of the errors to be expected in the velocity components (u, v, w + V sub T) in a three Doppler radar system as a function of certain radar parameters and positions. Discussion of expected errors in deduced divergence,vorticity,vertical air velocity,and precipitation fall velocity is presented. The three and two Doppler radar systems is briefly compared. The derivations assume an infinitely narrow beam,however finite pulse volume size enters indirectly in the estimation of the actual error where the variance of the Doppler power spectrum is introduced.