Articles | Volume 26, issue 19
https://doi.org/10.5194/hess-26-5185-2022
https://doi.org/10.5194/hess-26-5185-2022
Research article
 | 
14 Oct 2022
Research article |  | 14 Oct 2022

Flood patterns in a catchment with mixed bedrock geology and a hilly landscape: identification of flashy runoff contributions during storm events

Audrey Douinot, Jean François Iffly, Cyrille Tailliez, Claude Meisch, and Laurent Pfister

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Cited articles

adouinot: adouinot/TransitTimeModel: TransferTimeModel V1.0.0 (1.0.0), Zenodo [code], https://doi.org/10.5281/zenodo.7181809, 2022. 
Asano, Y., Uchida, T., and Tomomura, M.: A Novel Method of Quantifying Catchment-Wide Average Peak Propagation Speed in Hillslopes: Fast Hillslope Responses are Detected During Annual Floods in a Steep Humid Catchment, Water Resour. Res., 56, e2019WR025070, https://doi.org/10.1029/2019WR025070, 2020. 
Anderson, A. E., Weiler, M., Alila, Y., and Hudson, R. O.: Subsurface flow velocities in a hillslope with lateral preferential flow, Water Resour. Res., 45, W11407, https://doi.org/10.1029/2008WR007121, 2009. 
Berghuijs, W. R., Allen, S. T., Harrigan, S., and Kirchner, J. W.: Growing Spatial Scales of Synchronous River Flooding in Europe, Geophys. Res. Lett., 46, 1423–1428, https://doi.org/10.1029/2018GL081883, 2019. 
Bergstrom, A., Jencso, K., and McGlynn, B.: Spatiotemporal processes that contribute to hydrologic exchange between hillslopes, valley bottoms, and streams, Water Resour. Res., 52, 4628–4645, https://doi.org/10.1002/2015WR017972, 2016. 
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The objective of the paper is to highlight the seasonal and singular shift of the transfer time distributions of two catchments (≅10 km2). Based on 2 years of rainfall and discharge observations, we compare variations in the properties of TTDs with the physiographic characteristics of catchment areas and the eco-hydrological cycle. The paper eventually aims to deduce several factors conducive to particularly rapid and concentrated water transfers, which leads to flash floods.