The aim of this study is to evaluate the potential use of a low-cost single polarization X-band weather
radar, verified by a disdrometer and a dense rain gauge network, installed as a supporting tool for hydrological applications and for monitoring the urban area of Palermo (Italy). Moreover, this study focuses on
studying the temporal variability of the Z–R relation for Mediterranean areas. The radar device is provided with an automatic operational ground-clutter filter developed by the producer. Attention has been
paid to the development of blending procedures between radar measurements and other auxiliary instruments and to their suitability for both meteorological and hydrological applications. A general scheme
enveloping these procedures and achieving the combination of data retrieved from the weather radar,
the optical disdrometer, and the rain gauge network distributed within the monitored area has been
designed.