Z-R relationships during the LIAISE field campaign

Abstract

In this study, disdrometer observations are used to obtain and analyze the Z-R relationships for the region divided by the Urgell channel near Lleida (NE Spain). The differences induced by surface characteristics in the relationships are not obvious since, for both irrigated and non-irrigated areas, the exponents and prefactors of the resulting relations are almost identical. Rainfall rate in the non-irrigated is generally greater than in the irrigated area, specially in summer. A seasonal analysis shows the highest prefactors in summer, the highest exponents in winter and the lowest prefactors and exponents in spring. Rainfall rate estimates perform well for both the fitted relationship obtained and the Marshall-Palmer relation for continental stratiform precipitation