Precipitation measurement systems have experienced relevant
advances during last years, especially those from the remote sensor
applications. The most important innovations come up from the
satellite precipitation framework, mainly due to more robust analyses and new satellite systems such as the GPM (Global Precipitation Measurements) satellite system supported by the National
Aeronautics and Space Administration (NASA) and the Japan Aerospace Exploration Agency (JAXA). Main innovations proposed for
the field of the ground-based measurement systems, are related
particularly to the role of spatial refinement of measuring networks, the development of multi-sensor systems, and the technological advances of measurement sensors. Among these, weather
radar systems have kept being a source of new estimation insights,
thanks to the development of dual-polarization systems, network
radar systems, and new radar technologies.