“…In remote sensing studies, the mass and geometry of distributions of ice crystals cannot be neglected as they directly impact how these particles interact with electromagnetic radiation. Retrieving microphysical properties of ice particles from scattered radiation implies solving an ill‐posed inverse problem, which typically lacks constraints (Logvin et al, ). In the context of weather radars, scientists have been relying on the use of dual polarizations (e.g., Bringi et al, ; Testud et al, ), Doppler spectra (e.g., Cooper et al, ; Kollias et al, ), and more recently multiple frequencies (e.g., Kneifel et al, ; Kulie et al, ) in order to better constrain radar retrieval algorithms.…”