Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia

The aim of this paper is to analyse the potential relationship between flash flood events and convective precipitation in Catalonia, as well as any related trends. The paper starts with an overview of flash floods and their trends in the Mediterranean region, along with their associated factors, fol...

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Detalles Bibliográficos
Autores: Llasat, Maria C., Marcos, Raul, Turco, Marco, Gilabert, Joan, Llasat-Botija, Montserrat
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/88855
Acceso en línea:https://hdl.handle.net/2117/88855
https://dx.doi.org/10.1016/j.jhydrol.2016.05.040
Access Level:acceso abierto
Palabra clave:Flash floods
Mediterranean Region
Convection (Meteorology)
Precipitation forecasting
Convective precipitation
β parameter
Trend analysis
Mediterranean
Mediterrània (Catalunya : Costa)
Precipitacions (Meteorologia)
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
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spelling Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of CataloniaLlasat, Maria C.Marcos, RaulTurco, MarcoGilabert, JoanLlasat-Botija, MontserratFlash floodsMediterranean RegionConvection (Meteorology)Precipitation forecastingFlash floodsConvective precipitationβ parameterTrend analysisMediterraneanMediterrània (Catalunya : Costa)Precipitacions (Meteorologia)Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologiaThe aim of this paper is to analyse the potential relationship between flash flood events and convective precipitation in Catalonia, as well as any related trends. The paper starts with an overview of flash floods and their trends in the Mediterranean region, along with their associated factors, followed by the definition of, identification of, and trends in convective precipitation. After this introduction the paper focuses on the north-eastern Iberian Peninsula, for which there is a long-term precipitation series (since 1928) of 1-min precipitation from the Fabra Observatory, as well as a shorter (1996–2011) but more extensive precipitation series (43 rain gauges) of 5-min precipitation. Both series have been used to characterise the degree of convective contribution to rainfall, introducing the β parameter as the ratio between convective precipitation versus total precipitation in any period. Information about flood events was obtained from the INUNGAMA database (a flood database created by the GAMA team), with the aim of finding any potential links to convective precipitation. These flood data were gathered using information on damage where flood is treated as a multifactorial risk, and where any trend or anomaly might have been caused by one or more factors affecting hazard, vulnerability or exposure. Trend analysis has shown an increase in flash flood events. The fact that no trends were detected in terms of extreme values of precipitation on a daily scale, nor on the associated ETCCDI (Expert Team on Climate Change Detection and Indices) extreme index, could point to an increase in vulnerability, an increase in exposure, or changes in land use. However, the summer increase in convective precipitation was concentrated in less torrential events, which could partially explain this positive trend in flash flood events. The β parameter has been also used to characterise the type of flood event according to the features of the precipitation. The highest values correspond to short and local events, usually with daily β values above 0.5, while the minimum threshold of daily β for catastrophic flash floods is 0.31.Peer ReviewedElsevier20162016-10-0120162016-07-18journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/88855https://dx.doi.org/10.1016/j.jhydrol.2016.05.040reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengMinisterio de Economía y Competitividad http://doi.org/10.13039/501100003329 CGL2014-52571-R ANALISIS HOLISTICO DEL IMPACTO DE LAS PRECIPITACIONES EXTREMAS E INUNDACIONES Y SU INTRODUCCION EN ESCENARIOS FUTUROS. APLICACION A LAS ESTRATEGIAS DE ADAPTACION Y RESILIENCIAopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 4.0 International Licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/888552026-05-27T15:37:01Z
dc.title.none.fl_str_mv Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
title Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
spellingShingle Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
Llasat, Maria C.
Flash floods
Mediterranean Region
Convection (Meteorology)
Precipitation forecasting
Flash floods
Convective precipitation
β parameter
Trend analysis
Mediterranean
Mediterrània (Catalunya : Costa)
Precipitacions (Meteorologia)
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
title_short Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
title_full Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
title_fullStr Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
title_full_unstemmed Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
title_sort Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia
dc.creator.none.fl_str_mv Llasat, Maria C.
Marcos, Raul
Turco, Marco
Gilabert, Joan
Llasat-Botija, Montserrat
author Llasat, Maria C.
author_facet Llasat, Maria C.
Marcos, Raul
Turco, Marco
Gilabert, Joan
Llasat-Botija, Montserrat
author_role author
author2 Marcos, Raul
Turco, Marco
Gilabert, Joan
Llasat-Botija, Montserrat
author2_role author
author
author
author
dc.subject.none.fl_str_mv Flash floods
Mediterranean Region
Convection (Meteorology)
Precipitation forecasting
Flash floods
Convective precipitation
β parameter
Trend analysis
Mediterranean
Mediterrània (Catalunya : Costa)
Precipitacions (Meteorologia)
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
topic Flash floods
Mediterranean Region
Convection (Meteorology)
Precipitation forecasting
Flash floods
Convective precipitation
β parameter
Trend analysis
Mediterranean
Mediterrània (Catalunya : Costa)
Precipitacions (Meteorologia)
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
description The aim of this paper is to analyse the potential relationship between flash flood events and convective precipitation in Catalonia, as well as any related trends. The paper starts with an overview of flash floods and their trends in the Mediterranean region, along with their associated factors, followed by the definition of, identification of, and trends in convective precipitation. After this introduction the paper focuses on the north-eastern Iberian Peninsula, for which there is a long-term precipitation series (since 1928) of 1-min precipitation from the Fabra Observatory, as well as a shorter (1996–2011) but more extensive precipitation series (43 rain gauges) of 5-min precipitation. Both series have been used to characterise the degree of convective contribution to rainfall, introducing the β parameter as the ratio between convective precipitation versus total precipitation in any period. Information about flood events was obtained from the INUNGAMA database (a flood database created by the GAMA team), with the aim of finding any potential links to convective precipitation. These flood data were gathered using information on damage where flood is treated as a multifactorial risk, and where any trend or anomaly might have been caused by one or more factors affecting hazard, vulnerability or exposure. Trend analysis has shown an increase in flash flood events. The fact that no trends were detected in terms of extreme values of precipitation on a daily scale, nor on the associated ETCCDI (Expert Team on Climate Change Detection and Indices) extreme index, could point to an increase in vulnerability, an increase in exposure, or changes in land use. However, the summer increase in convective precipitation was concentrated in less torrential events, which could partially explain this positive trend in flash flood events. The β parameter has been also used to characterise the type of flood event according to the features of the precipitation. The highest values correspond to short and local events, usually with daily β values above 0.5, while the minimum threshold of daily β for catastrophic flash floods is 0.31.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-10-01
2016
2016-07-18
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/88855
https://dx.doi.org/10.1016/j.jhydrol.2016.05.040
url https://hdl.handle.net/2117/88855
https://dx.doi.org/10.1016/j.jhydrol.2016.05.040
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://doi.org/10.13039/501100003329 CGL2014-52571-R ANALISIS HOLISTICO DEL IMPACTO DE LAS PRECIPITACIONES EXTREMAS E INUNDACIONES Y SU INTRODUCCION EN ESCENARIOS FUTUROS. APLICACION A LAS ESTRATEGIAS DE ADAPTACION Y RESILIENCIA
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 4.0 International License
https://creativecommons.org/licenses/by-nc-nd/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
Attribution-NonCommercial-NoDerivs 4.0 International License
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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