Modelling rain rate by means of arrival processes

We try to address in this paper our current work toward the generation of synthetic time series of rain rate, R, in mm/h with an integration time of 1 min. This is the ITU-R, standard for predicting rain induced attenuation [1]. For one, the availability of rain intensity records adapted to the ITU-R requirements is very limited given that the main users of rain information (weather prediction, water management, etc.) do not require such a short integration time and data with longer accumulation periods, even exceeding 1 hour, are commonly found. In this respect, there is recent published work where a method based on a physical model (EXCELL) [2] has been proposed for converting recordings with longer integration times to the standardized 1-min period.