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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 2
Adv. Geosci., 2, 41–46, 2005
https://doi.org/10.5194/adgeo-2-41-2005
© Author(s) 2005. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Adv. Geosci., 2, 41–46, 2005
https://doi.org/10.5194/adgeo-2-41-2005
© Author(s) 2005. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  24 Mar 2005

24 Mar 2005

Calibration of a rainfall-runoff model using radar and raingauge data

V. Lopez, F. Napolitano, and F. Russo V. Lopez et al.
  • Department of Hydraulic, Transportations and Roads, University of Rome “La Sapienza", 00184 Rome, Italy

Abstract. Since raingauges give pointwise measurements the small scale variability of rainfall fields leads to biases on the estimation for the rainfall over the whole basin. In this context meteorological radars have several advantages since a single site is able to obtain coverage over a wide area with high temporal and spatial resolution.

The purpose of this study is to compare the capability of the two different measurement systems in order to give correct input to drive rainfall-runoff models. Therefore a geomorphological model was calibrated, using firstly raingauge data and secondly radar rainfall estimates, for the Treja river basin. In this way it is possible to determine different sets of parameters and the influence of measurement system in hydrological modelling.

The results shown that radar rainfall data is able to improve significantly hydrographs reconstructions.

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