Polarimetric Radar Observations and Interpretation of Co-Cross-Polar Correlation Coefficients

摘要

Preliminary analysis of all components of the polarimetic radar covariance matrix for precipitation measured with the NCAR S-band dual-polarization Doppler radar (S-Pol) and the Colorado State Unviersity-university of Chicago-Illinois State Water Survey (CSU-CHILL) radars is presented. Radar reflectivity at horizontal po- larization Z_h, differential reflectivity Z_DR, linear depolarization ratio LDR, specific differential phase K_DP, cross- correlation coefficient |P_hv|, and two co-cross-polar correlation coefficients, ρ_xh and ρ_xv, have been measured and examined for two rain events: the 14 August 1998 case in Florida and the 8 August 1998 case in Colorado.