Improving radar rainfall measurement stability using mountain returns in real time.

Attenuation is one of the most severe problems affecting the rainfall estimates by meteorological radars at short wavelengths (5 cm and less). Therefore, most of the operational networks, (essentially C-band radars outside USA), are seriously affected by attenuation, particularly in Europe. In general radar attenuation is related to the reflectivity of the targets along a given beam path, and it is a field with values varying all over radar measurements.