Articles | Volume 29, issue 19
https://doi.org/10.5194/hess-29-5031-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-29-5031-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Oct 2025
Research article |
| 09 Oct 2025
| 09 Oct 2025
Informativeness of teleconnections in frequency analysis of rainfall extremes
Andrea Magnini
CORRESPONDING AUTHOR
Department of civil, environmental, chemical and materials engineering (DICAM), University of Bologna, Bologna, Italy
Valentina Pavan
ARPAE-SIMC Emilia Romagna, Bologna, Italy
Attilio Castellarin
Department of civil, environmental, chemical and materials engineering (DICAM), University of Bologna, Bologna, Italy
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Short summary
This study describes a new methodology to identify regional structures in the dependence of extreme rainfall on global climate indices. The study area is North-Central Italy, but the methods are highly adaptable to other regions. We observe that while multiple climate indices show influence, the Western Mediterranean Oscillation Index and East Atlantic West Russia pattern appear to have the strongest effects, with regional structures that align with other studies. We also show that using these indices may improve estimation of extreme rainfall depth with a given probability.
This study describes a new methodology to identify regional structures in the dependence of...
