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Authors: Ferretti, R.*
Paolucci, T.*
Bernardini, L.*
Visconti, G.*
Title: The role of the high resolution weather forecast in estimating the run-offusing a simple hydrological model
Issue Date: 2003
Series/Report no.: 46 (2)
Keywords: high resolution forecast
heavy precipitation
Abstract: Recent and repeated episodes of severe weather in Italy have stressed the need to have a suffi ciently accurate forecast to give adequate warning to the involved areas. The impact of the precipitation, however, is also a function of the characteristics of the hydrological basin. From this point of view, a rather startling example is the disaster which hit the Campania region on 5th May, 1998 in which a moderate precipitation (about 100 mm in 24 h) produced a huge landslide which killed or injured several tens of people and produced serious damage to the area. Such localized events require among other things the use of a high resolution weather forecast. In this paper, a forecast of the Campania event using a limited area model at 3 km grid resolution is presented. The forecast rainfall at several grid resolution is used to initialize a simple hydrological model to estimate the run-off. The numerical experiments suggest that high resolution may be a key factor in predicting the run-off.
Appears in Collections:03.02.05. Models and Forecasts
Annals of Geophysics

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