Brief communication: The role of using precipitation or river discharge data when assessing global coastal compound flooding

Bevacqua, Emanuele; Vousdoukas, Michalis I.; Shepherd, Theodore G.; Vrac, Mathieu

doi:https://doi.org/10.5194/nhess-20-1765-2020

Articles | Volume 20, issue 6

https://doi.org/10.5194/nhess-20-1765-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Global- and continental-scale risk assessment for natural...

https://doi.org/10.5194/nhess-20-1765-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 6

Brief communication

|

17 Jun 2020

Brief communication |

| 17 Jun 2020

Brief communication: The role of using precipitation or river discharge data when assessing global coastal compound flooding

Emanuele Bevacqua, Michalis I. Vousdoukas, Theodore G. Shepherd, and Mathieu Vrac

Data sets

Paired time series of daily discharge and storm surge D. Eilander https://doi.org/10.5281/zenodo.3258007

Short summary

Coastal compound flooding (CF), caused by interacting storm surges and high water runoff, is typically studied based on concurring storm surge extremes with either precipitation or river discharge extremes. Globally, these two approaches show similar CF spatial patterns, especially where the CF potential is the highest. Deviations between the two approaches increase with the catchment size. The precipitation-based analysis allows for considering local-rainfall-driven CF and CF in small rivers.