A climatology of sub-seasonal temporal clustering of extreme precipitation in Switzerland and its links to extreme discharge

Tuel, Alexandre; Martius, Olivia

doi:https://doi.org/10.5194/nhess-21-2949-2021

Articles | Volume 21, issue 10

https://doi.org/10.5194/nhess-21-2949-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Understanding compound weather and climate events and related...

https://doi.org/10.5194/nhess-21-2949-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 10

Research article

|

01 Oct 2021

Research article |

| 01 Oct 2021

A climatology of sub-seasonal temporal clustering of extreme precipitation in Switzerland and its links to extreme discharge

Alexandre Tuel and Olivia Martius

Data sets

TRMM (TMPA) Precipitation L3 1 day 0.25 degree x 0.25 degree V7 G. J. Huffman, D. T. Bolvin, E. J. Nelkin, and R. F. Adler https://doi.org/10.5067/TRMM/TMPA/DAY/7

NOAA Climate Data Record~(CDR) of CPC Morphing Technique (CMORPH) High Resolution Global Precipitation Estimates, Version 1 P. Xie, R. Joyce, S. Wu, S.-H. Yoo, Y. Yarosh, F. Sun, R. Lin, and NOAA CDR Program https://doi.org/10.25921/w9va-q159

Model code and software

Clustering_subseasonal_Switzerland A. Tuel https://github.com/Quriosity129/Clustering_subseasonal_Switzerland_NHESS/

Short summary

Extreme river discharge may be triggered by large accumulations of precipitation over short time periods, which can result from the successive occurrence of extreme-precipitation events. We find a distinct spatiotemporal pattern in the temporal clustering behavior of precipitation extremes over Switzerland, with clustering occurring on the northern side of the Alps in winter and on their southern side in fall. Clusters tend to be followed by extreme discharge, particularly in the southern Alps.