An Inverse Method for Drop Size Distribution Retrieval from Polarimetric Radar at Attenuating Frequency

A method that formulates the retrieval of drop size distribution (DSD) parameters from polarimetric radar variables at attenuating frequency as solution an inverse problem is presented. The DSD in each bin represented by a normalized Gamma defined three (Dm,N0*,μ). direct describes observables—scattering and propagation terms—and their dependency on analyzed based T-matrix scattering simulations. algorithm its application to are then applied African Monsoon Multidisciplinary Analysis (AMMA) field campaign deployed X-band dual-polarization Doppler optical disdrometers Benin, West Africa, 2006 2007. dataset composed PPIs disdrometer data for 15 organized convective systems observed 2006. priori information (benchmark method) derived observables applying power law relationships. proposed leads following results compared benchmark: (i) we found better spatial consistency retrieved parameters, (ii) reconstructed closer observations, (iii) validation with confirms improved estimation parameters.