Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia
Data on flood occurrence and flood impacts for the last seven centuries in the northeastern Iberian Peninsula have been analysed in order to characterise long-term trends, anomalous periods and their relationship with different climatic factors such as precipitation, general circulation and solar ac...
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ftubarcepubl:oai:diposit.ub.edu:2445/97262 2024-02-11T10:06:46+01:00 Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia Barrera Escoda, Antonio Llasat Botija, María del Carmen 2015-01-26 19 p. application/pdf http://hdl.handle.net/2445/97262 eng eng European Geosciences Union (EGU) Reproducció del document publicat a: http://dx.doi.org/10.5194/hess-19-465-2015 Hydrology and Earth System Sciences, 2015, vol. 19, num. 1, p. 465-483 Articles publicats en revistes (Física Quàntica i Astrofísica) http://dx.doi.org/10.5194/hess-19-465-2015 1027-5606 http://hdl.handle.net/2445/97262 659651 cc-by (c) Barrera Escoda, Antonio et al., 2015 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess Inundacions Mètodes estadístics Mediterrània (Regió) Floods Statistical methods Mediterranean Region Segle XIV-segle XX 14th century-20th century info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftubarcepubl https://doi.org/10.5194/hess-19-465-2015 2024-01-24T00:59:29Z Data on flood occurrence and flood impacts for the last seven centuries in the northeastern Iberian Peninsula have been analysed in order to characterise long-term trends, anomalous periods and their relationship with different climatic factors such as precipitation, general circulation and solar activity. Catastrophic floods (those that produce complete or partial destruction of infrastructure close to the river, and major damages in the overflowed area, including some zones away from the channels) do not present a statistically significant trend, whereas extraordinary floods (the channel is overflowed and some punctual severe damages can be produced in the infrastructures placed in the rivercourse or near it, but usually damages are slight) have seen a significant rise, especially from 1850 on, and were responsible for the total increase in flooding in the region. This rise can be mainly attributed to small coastal catchments, which have experienced a marked increase in developed land and population, resulting in changes in land use and greater vulnerability. Changes in precipitation alone cannot explain the variation in flood patterns, although a certain increase was shown in late summer-early autumn, when extraordinary floods are most frequently recorded. The relationship between the North Atlantic circulation and floods is not as strong, due to the important role of mesoscale factors in heavy precipitation in the northwest of the Mediterranean region. However, it can explain the variance to some extent, mainly in relation to the catastrophic floods experienced during the autumn. Solar activity has some impact on changes in catastrophic floods, with cycles related to the quasi-biennial oscillation (QBO) and the Gleissberg solar cycle. In addition, anomalous periods of high flood frequency in autumn generally occurred during periods of increased solar activity. The physical influence of the latter in general circulation patterns, the high troposphere and the stratosphere, has been analysed in order to ... Article in Journal/Newspaper North Atlantic Dipòsit Digital de la Universitat de Barcelona Hydrology and Earth System Sciences 19 1 465 483 |
institution |
Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Inundacions Mètodes estadístics Mediterrània (Regió) Floods Statistical methods Mediterranean Region Segle XIV-segle XX 14th century-20th century |
spellingShingle |
Inundacions Mètodes estadístics Mediterrània (Regió) Floods Statistical methods Mediterranean Region Segle XIV-segle XX 14th century-20th century Barrera Escoda, Antonio Llasat Botija, María del Carmen Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia |
topic_facet |
Inundacions Mètodes estadístics Mediterrània (Regió) Floods Statistical methods Mediterranean Region Segle XIV-segle XX 14th century-20th century |
description |
Data on flood occurrence and flood impacts for the last seven centuries in the northeastern Iberian Peninsula have been analysed in order to characterise long-term trends, anomalous periods and their relationship with different climatic factors such as precipitation, general circulation and solar activity. Catastrophic floods (those that produce complete or partial destruction of infrastructure close to the river, and major damages in the overflowed area, including some zones away from the channels) do not present a statistically significant trend, whereas extraordinary floods (the channel is overflowed and some punctual severe damages can be produced in the infrastructures placed in the rivercourse or near it, but usually damages are slight) have seen a significant rise, especially from 1850 on, and were responsible for the total increase in flooding in the region. This rise can be mainly attributed to small coastal catchments, which have experienced a marked increase in developed land and population, resulting in changes in land use and greater vulnerability. Changes in precipitation alone cannot explain the variation in flood patterns, although a certain increase was shown in late summer-early autumn, when extraordinary floods are most frequently recorded. The relationship between the North Atlantic circulation and floods is not as strong, due to the important role of mesoscale factors in heavy precipitation in the northwest of the Mediterranean region. However, it can explain the variance to some extent, mainly in relation to the catastrophic floods experienced during the autumn. Solar activity has some impact on changes in catastrophic floods, with cycles related to the quasi-biennial oscillation (QBO) and the Gleissberg solar cycle. In addition, anomalous periods of high flood frequency in autumn generally occurred during periods of increased solar activity. The physical influence of the latter in general circulation patterns, the high troposphere and the stratosphere, has been analysed in order to ... |
format |
Article in Journal/Newspaper |
author |
Barrera Escoda, Antonio Llasat Botija, María del Carmen |
author_facet |
Barrera Escoda, Antonio Llasat Botija, María del Carmen |
author_sort |
Barrera Escoda, Antonio |
title |
Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia |
title_short |
Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia |
title_full |
Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia |
title_fullStr |
Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia |
title_full_unstemmed |
Evolving flood patterns in a Mediterranean region (1301-2012) and climatic factors - the case of Catalonia |
title_sort |
evolving flood patterns in a mediterranean region (1301-2012) and climatic factors - the case of catalonia |
publisher |
European Geosciences Union (EGU) |
publishDate |
2015 |
url |
http://hdl.handle.net/2445/97262 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Reproducció del document publicat a: http://dx.doi.org/10.5194/hess-19-465-2015 Hydrology and Earth System Sciences, 2015, vol. 19, num. 1, p. 465-483 Articles publicats en revistes (Física Quàntica i Astrofísica) http://dx.doi.org/10.5194/hess-19-465-2015 1027-5606 http://hdl.handle.net/2445/97262 659651 |
op_rights |
cc-by (c) Barrera Escoda, Antonio et al., 2015 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/hess-19-465-2015 |
container_title |
Hydrology and Earth System Sciences |
container_volume |
19 |
container_issue |
1 |
container_start_page |
465 |
op_container_end_page |
483 |
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1790604682242031616 |