Articles | Volume 24, issue 7
Hydrol. Earth Syst. Sci., 24, 3699–3723, 2020
https://doi.org/10.5194/hess-24-3699-2020
Hydrol. Earth Syst. Sci., 24, 3699–3723, 2020
https://doi.org/10.5194/hess-24-3699-2020

Research article 23 Jul 2020

Research article | 23 Jul 2020

A new discrete multiplicative random cascade model for downscaling intermittent rainfall fields

Marc Schleiss

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Latest update: 25 Jan 2022
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Short summary
A new way to downscale rainfall fields based on the notion of equal-volume areas (EVAs) is proposed. Experiments conducted on 100 rainfall events in the Netherlands show that the EVA method outperforms classical methods based on fixed grid cell sizes, producing fields with more realistic spatial structures. The main novelty of the method lies in its adaptive sampling strategy, which avoids many of the mathematical challenges associated with the presence of zero rainfall values.