Climate and hydrological variability: the catchment filtering role

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...

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Detalhes bibliográficos
Autores: Andrés-Doménech, Ignacio|||0000-0003-4237-4863, García-Bartual, Rafael|||0000-0002-1811-8264, Marco Segura, Juan Bautista, Montanari, Alberto
Formato: artículo
Fecha de publicación:2015
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/62605
Acesso em linha:https://riunet.upv.es/handle/10251/62605
Access Level:acceso abierto
Palavra-chave:Climate change
Rainfall-runoff
INGENIERIA HIDRAULICA
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spelling Climate and hydrological variability: the catchment filtering roleAndrés-Doménech, Ignacio|||0000-0003-4237-4863García-Bartual, Rafael|||0000-0002-1811-8264Marco Segura, Juan BautistaMontanari, AlbertoClimate changeRainfall-runoffINGENIERIA HIDRAULICAMeasuring 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 changeEuropean Geosciences Union (EGU)Departamento de Ingeniería Hidráulica y Medio AmbienteInstituto Universitario de Ingeniería del Agua y del Medio AmbienteEscuela Técnica Superior de Ingeniería de Caminos, Canales y PuertosRepositorio Institucional de la Universitat Politècnica de València Riunet20152015-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/62605reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/626052026-06-13T07:49:27Z
dc.title.none.fl_str_mv Climate and hydrological variability: the catchment filtering role
title Climate and hydrological variability: the catchment filtering role
spellingShingle Climate and hydrological variability: the catchment filtering role
Andrés-Doménech, Ignacio|||0000-0003-4237-4863
Climate change
Rainfall-runoff
INGENIERIA HIDRAULICA
title_short Climate and hydrological variability: the catchment filtering role
title_full Climate and hydrological variability: the catchment filtering role
title_fullStr Climate and hydrological variability: the catchment filtering role
title_full_unstemmed Climate and hydrological variability: the catchment filtering role
title_sort Climate and hydrological variability: the catchment filtering role
dc.creator.none.fl_str_mv Andrés-Doménech, Ignacio|||0000-0003-4237-4863
García-Bartual, Rafael|||0000-0002-1811-8264
Marco Segura, Juan Bautista
Montanari, Alberto
author Andrés-Doménech, Ignacio|||0000-0003-4237-4863
author_facet Andrés-Doménech, Ignacio|||0000-0003-4237-4863
García-Bartual, Rafael|||0000-0002-1811-8264
Marco Segura, Juan Bautista
Montanari, Alberto
author_role author
author2 García-Bartual, Rafael|||0000-0002-1811-8264
Marco Segura, Juan Bautista
Montanari, Alberto
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Hidráulica y Medio Ambiente
Instituto Universitario de Ingeniería del Agua y del Medio Ambiente
Escuela Técnica Superior de Ingeniería de Caminos, Canales y Puertos
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Climate change
Rainfall-runoff
INGENIERIA HIDRAULICA
topic Climate change
Rainfall-runoff
INGENIERIA HIDRAULICA
description 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
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/62605
url https://riunet.upv.es/handle/10251/62605
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv European Geosciences Union (EGU)
publisher.none.fl_str_mv European Geosciences Union (EGU)
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405933662109696
score 15.300719

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