Advances in Science and Research
Advances in Science and Research
ASR
Articles | Volume 14
Articles | Volume 14
https://doi.org/10.5194/asr-14-271-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/asr-14-271-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 14
11 Aug 2017
 | 11 Aug 2017

Comparison between 3D-Var and 4D-Var data assimilation methods for the simulation of a heavy rainfall case in central Italy

Vincenzo Mazzarella, Ida Maiello, Vincenzo Capozzi, Giorgio Budillon, and Rossella Ferretti

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Short summary
This work aims to provide a comparison between three dimensional and four dimensional variational data assimilation methods (3D-Var and 4D-Var) for a heavy rainfall case in central Italy. Nine simulations are compared in terms of rainfall forecast and precipitation measured by the gauges through three statistical indicators. The assimilation of conventional observations with 4D-Var method improves the quantitative precipitation forecast (QPF) compared to 3D-Var.
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