The state of climate in NW Iberia
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/27873 |
Resumo: | Since 1974, there has been a significant increasing trend in land and sea surface temperatures of 0.5 and 0.24°C decade–1, respectively, in the NW Iberian Peninsula. Over the same period, annual precipitation does not show any trend, although some tendencies have been detected at seasonal scales. A significant positive trend, on average of 2 cm decade–1, was also observed in sea level rise from 1943 onwards. Ekman transport perpendicular to the coast (upwelling index) showed a decrease from 1975 to 2008 at both annual and seasonal scales. In addition, the flow of the Miño River (the main river in the area) has also decreased at a mean rate of 18 m3 s–1 decade–1 since 1970. At a synoptic scale, winter cyclone frequency and winter and spring blocking activity have decreased since the 1950s, which may partially explain the winter precipitation decline and the winter and spring temperature increases. These changes in synoptic systems are also in agreement with reported trends in the dominant variability modes of atmospheric circulation affecting NW Iberia, particularly a pronounced positive trend in the North Atlantic Oscillation from the 1970s to the 1990s. |
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The state of climate in NW IberiaClimateNorthwest IberiaEkman transportLand temperaturePrecipitationSea level riseSea surface temperatureSynoptic systemsTeleconnection indicesWeather typesSince 1974, there has been a significant increasing trend in land and sea surface temperatures of 0.5 and 0.24°C decade–1, respectively, in the NW Iberian Peninsula. Over the same period, annual precipitation does not show any trend, although some tendencies have been detected at seasonal scales. A significant positive trend, on average of 2 cm decade–1, was also observed in sea level rise from 1943 onwards. Ekman transport perpendicular to the coast (upwelling index) showed a decrease from 1975 to 2008 at both annual and seasonal scales. In addition, the flow of the Miño River (the main river in the area) has also decreased at a mean rate of 18 m3 s–1 decade–1 since 1970. At a synoptic scale, winter cyclone frequency and winter and spring blocking activity have decreased since the 1950s, which may partially explain the winter precipitation decline and the winter and spring temperature increases. These changes in synoptic systems are also in agreement with reported trends in the dominant variability modes of atmospheric circulation affecting NW Iberia, particularly a pronounced positive trend in the North Atlantic Oscillation from the 1970s to the 1990s.Inter Research2020-03-11T12:15:11Z2011-01-01T00:00:00Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/27873eng0936-577X10.3354/cr00967Gómez-Gesteira, M.Gimeno, L.deCastro, M.Lorenzo, M. N.Alvarez, I.Nieto, R.Taboada, J. J.Crespo, A. J. C.Ramos, A. M.Iglesias, I.Gómez-Gesteira, J. L.Santo, F. E.Barriopedro, D.Trigo, I. F.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:54:01Zoai:ria.ua.pt:10773/27873Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:00:35.060705Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The state of climate in NW Iberia |
title |
The state of climate in NW Iberia |
spellingShingle |
The state of climate in NW Iberia Gómez-Gesteira, M. Climate Northwest Iberia Ekman transport Land temperature Precipitation Sea level rise Sea surface temperature Synoptic systems Teleconnection indices Weather types |
title_short |
The state of climate in NW Iberia |
title_full |
The state of climate in NW Iberia |
title_fullStr |
The state of climate in NW Iberia |
title_full_unstemmed |
The state of climate in NW Iberia |
title_sort |
The state of climate in NW Iberia |
author |
Gómez-Gesteira, M. |
author_facet |
Gómez-Gesteira, M. Gimeno, L. deCastro, M. Lorenzo, M. N. Alvarez, I. Nieto, R. Taboada, J. J. Crespo, A. J. C. Ramos, A. M. Iglesias, I. Gómez-Gesteira, J. L. Santo, F. E. Barriopedro, D. Trigo, I. F. |
author_role |
author |
author2 |
Gimeno, L. deCastro, M. Lorenzo, M. N. Alvarez, I. Nieto, R. Taboada, J. J. Crespo, A. J. C. Ramos, A. M. Iglesias, I. Gómez-Gesteira, J. L. Santo, F. E. Barriopedro, D. Trigo, I. F. |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Gómez-Gesteira, M. Gimeno, L. deCastro, M. Lorenzo, M. N. Alvarez, I. Nieto, R. Taboada, J. J. Crespo, A. J. C. Ramos, A. M. Iglesias, I. Gómez-Gesteira, J. L. Santo, F. E. Barriopedro, D. Trigo, I. F. |
dc.subject.por.fl_str_mv |
Climate Northwest Iberia Ekman transport Land temperature Precipitation Sea level rise Sea surface temperature Synoptic systems Teleconnection indices Weather types |
topic |
Climate Northwest Iberia Ekman transport Land temperature Precipitation Sea level rise Sea surface temperature Synoptic systems Teleconnection indices Weather types |
description |
Since 1974, there has been a significant increasing trend in land and sea surface temperatures of 0.5 and 0.24°C decade–1, respectively, in the NW Iberian Peninsula. Over the same period, annual precipitation does not show any trend, although some tendencies have been detected at seasonal scales. A significant positive trend, on average of 2 cm decade–1, was also observed in sea level rise from 1943 onwards. Ekman transport perpendicular to the coast (upwelling index) showed a decrease from 1975 to 2008 at both annual and seasonal scales. In addition, the flow of the Miño River (the main river in the area) has also decreased at a mean rate of 18 m3 s–1 decade–1 since 1970. At a synoptic scale, winter cyclone frequency and winter and spring blocking activity have decreased since the 1950s, which may partially explain the winter precipitation decline and the winter and spring temperature increases. These changes in synoptic systems are also in agreement with reported trends in the dominant variability modes of atmospheric circulation affecting NW Iberia, particularly a pronounced positive trend in the North Atlantic Oscillation from the 1970s to the 1990s. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01T00:00:00Z 2011 2020-03-11T12:15:11Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/27873 |
url |
http://hdl.handle.net/10773/27873 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0936-577X 10.3354/cr00967 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Inter Research |
publisher.none.fl_str_mv |
Inter Research |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137661110190080 |