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Climate and hydrological variability: the catchment filtering role

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Climate and hydrological variability: the catchment filtering role

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dc.contributor.author Andrés Doménech, Ignacio es_ES
dc.contributor.author García Bartual, Rafael Luis es_ES
dc.contributor.author Montanari, Alberto es_ES
dc.contributor.author Marco Segura, Juan Bautista es_ES
dc.date.accessioned 2016-04-15T10:43:44Z
dc.date.available 2016-04-15T10:43:44Z
dc.date.issued 2015
dc.identifier.issn 1027-5606
dc.identifier.uri http://hdl.handle.net/10251/62605
dc.description.abstract Measuring the impact of climate change on flood frequency is a complex and controversial task. Identifying hydrological changes is difficult given the factors, other than climate variability, which lead to significant variations in runoff series. The catchment filtering role is often overlooked and thus may hinder the correct identification of climate variability signatures on hydrological processes. Does climate variability necessarily imply hydrological variability? This research aims to analytically derive the flood frequency distribution based on realistic hypotheses about the rainfall process and the rainfall runoff transformation. The annual maximum peak flow probability distribution is analytically derived to quantify the filtering effect of the rainfall runoff process on climate change. A sensitivity analysis is performed according to typical semi-arid Mediterranean climatic and hydrological conditions, assuming a simple but common scheme for the rainfall runoff transformation in small-size ungauged catchments, i.e. the CN-SCS model. Variability in annual maximum peak flows and its statistical significance are analysed when changes in the climatic input are introduced. Results show that depending on changes in the annual number of rainfall events, the catchment filtering role is particularly significant, especially when the event rainfall volume distribution is not strongly skewed. Results largely depend on the return period: for large return periods, peak flow variability is significantly affected by the climatic input, while for lower return periods, infiltration processes smooth out the impact of climate change es_ES
dc.language Inglés es_ES
dc.publisher European Geosciences Union (EGU) es_ES
dc.relation.ispartof Hydrology and Earth System Sciences es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Climate change es_ES
dc.subject Rainfall-runoff es_ES
dc.subject.classification INGENIERIA HIDRAULICA es_ES
dc.title Climate and hydrological variability: the catchment filtering role es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.5194/hess-19-379-2015
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.description.bibliographicCitation Andrés Doménech, I.; García Bartual, RL.; Montanari, A.; Marco Segura, JB. (2015). Climate and hydrological variability: the catchment filtering role. Hydrology and Earth System Sciences. 19(1):379-387. doi:10.5194/hess-19-379-2015 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.5194/hess-19-379-2015 es_ES
dc.description.upvformatpinicio 379 es_ES
dc.description.upvformatpfin 387 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 19 es_ES
dc.description.issue 1 es_ES
dc.relation.senia 283131 es_ES


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