Using a Constrained Linear Inversion Algorithm to Retrieve Cloud Properties from the ARM 35-GHz Radar

Doppler spectra, collected from a vertically pointing radar, are a measure of spectral reflectivity per interval of Doppler velocity. Ideally, the velocity interval can be converted to an equivalent drop size interval via an appropriate size versus velocity relationship. Since radar backscatter from a population of drops depends on the size and number density of the drops, and the size interval is known, the number density can be easily calculated.