Hydrometeorological analysis of the 12 and 13 September 2019 widespread flash flooding in eastern Spain
Abstract 2, with rainfall amounts equal to or larger than 200 mm. The main factors driving the flood response were quasi-stationarity of heavy precipitation, very dry initial soil moisture conditions and large storage capacities. Most of the examined catchments exhibited a dampened and delayed hydrological response to cumulative precipitation: until runoff thresholds were exceeded, infiltration-excess runoff generation did not start. This threshold-based hydrological behaviour may impact the shape of flood peak distributions, hindering strict flood frequency statistical analysis due to the generally limited lengths of data records in arid and semi-arid catchments. As an alternative, a power-law relationship is analytically derived to specifically link flood magnitude to rainfall amount, with the parameters depending on basin and precipitation features. This power law could aid in developing empirical envelope curves so as to assess hydrologic risk in arid and semi-arid catchments with a threshold-based hydrological behaviour.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Hydrometeorological analysis of the 12 and 13 September 2019 widespread flash flooding in eastern Spain ; volume:22 ; number:4 ; year:2022 ; pages:1159-1179 ; extent:21
Natural hazards and earth system sciences ; 22, Heft 4 (2022), 1159-1179 (gesamt 21)
- Urheber
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Amengual, Arnau
- DOI
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10.5194/nhess-22-1159-2022
- URN
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urn:nbn:de:101:1-2022041210244392843480
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
- 15.08.2025, 07:32 MESZ
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Beteiligte
- Amengual, Arnau
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