Journal article

Global analysis of cyclone-induced compound precipitation and wind extreme events

Martina Messmer, Ian Simmonds



Compound extremes, which involve extremes in two or more meteorological parameters, have received little attention until now. We present a new global climatology of compound events that involve extreme precipitation and extreme wind and that are triggered by low-pressure systems. The analysis employs the 3-hourly ERA5 reanalysis (1979–2018) and two independent cyclone detection and tracking algorithms, both of which provide a quasi-Lagrangian perspective. In the analysis, firstly, spatially large and coherent individual extremes in the accumulated precipitation and maximum 10-m wind gust fields are identified. Then cyclone tracks that have both an extreme precipitation and extreme wind event..

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Awarded by Swiss National Science Foundation

Funding Acknowledgements

The authors are thankful for the funding provided by the Swiss National Science Foundation (project P2BEP2_181837) and to The University of Melbourne where the project was conducted. The research is based on the ERA5 data set provided by ECMWF and generated using Copernicus Climate Change Service Information (2019) . Some of the calculations were performed on the Australian National Computational Infrastructure (NCI) . We further acknowledge the comments and inputof three anonymous reviewers which were very helpful in the revision of the paper.