Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula

A multi-proxy characterization of the uppermost sedimentary infill of an Iberian alpine lake (Cimera, 2140 m a.s.l.) was performed to establish the climatic and environmental conditions for the Iberian Central Range (ICR) over the last two millennia. This multi-proxy characterization was used to rec...

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Autores: Sánchez López, Guiomar, Hernández Hernández, Armand, Pla Rabés, Sergi, Trigo, Ricardo M., Toro Velasco, Manuel, Granados, Ignacio, Sáez, Alberto, Masqué, Pere, Pueyo Mur, Juan José, Rubio de Inglés, María Jesús, Giralt Romeu, Santiago
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/101594
Acceso en línea:https://hdl.handle.net/2445/101594
Access Level:acceso abierto
Palabra clave:Paleoclimatologia
Península Ibèrica
Ecologia dels llacs
Interacció oceà-atmosfera
Climatologia
Paleoclimatology
Iberian Peninsula
Lake ecology
Ocean-atmosphere interaction
Climatology
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repository_id_str
spelling Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian PeninsulaSánchez López, GuiomarHernández Hernández, ArmandPla Rabés, SergiTrigo, Ricardo M.Toro Velasco, ManuelGranados, IgnacioSáez, AlbertoMasqué, PerePueyo Mur, Juan JoséRubio de Inglés, María JesúsGiralt Romeu, SantiagoPaleoclimatologiaPenínsula IbèricaEcologia dels llacsInteracció oceà-atmosferaClimatologiaPaleoclimatologyIberian PeninsulaLake ecologyOcean-atmosphere interactionClimatologyA multi-proxy characterization of the uppermost sedimentary infill of an Iberian alpine lake (Cimera, 2140 m a.s.l.) was performed to establish the climatic and environmental conditions for the Iberian Central Range (ICR) over the last two millennia. This multi-proxy characterization was used to reconstruct the intense runoff events, lake productivity and soil erosion in the lake catchment and interpret these factors in terms of temperature and precipitation variability. The Roman Period (RP; 200 BCE - 500 CE) beginning was characterized by an alternation between cold and warm periods as indicated by shortlived oscillations of intense runoff conditions and soil erosion, although warm conditions dominated the end of the period and the Early Middle Age (EMA; 500-900 CE) onset in the ICR. A noticeable decrease in intense runoff events and a progressive decrease in soil erosion during the late EMA indicated a shift to colder temperatures. In terms of precipitation, both the RP and EMA climate periods displayed a transition from dry to wet conditions that led to a decrease in lake productivity. The Medieval Climate Anomaly (MCA; 900-1300 CE) was characterized by warm and dry conditions with frequent intense runoff episodes and increases in lake productivity and soil erosion, whereas the Little Ice Age (LIA; 1300 -1850 CE) showed the opposite characteristics. The Industrial Era (1850-2012 CE) presented an increase in lake productivity that likely demonstrates the influence of global warming. The spatio-temporal integration of the Cimera record with other Iberian reconstructions has been used to identify the main climate drivers over this region. During the RP and EMA, N-S and E-W humidity gradients were dominant, whereas during the MCA and LIA, these gradients were not evident. These differences could be ascribed to interactions between the North Atlantic Oscillation (NAO) and East Atlantic (EA) phases. During the RP, the general warm conditions and the EeW humidity gradient indicate a dominant interplay between a negative NAO phase and a positive EA phase (NAO- EA+), whereas the opposite conditions during the EMA indicate a NAO+ EA- interaction. The dominant warm and arid conditions during the MCA and the cold and wet conditions during the LIA indicate the interplay of the NAO+ EA+ and NAO- EA- , respectively. Furthermore, the higher solar irradiance during the RP and MCA may support the predominance of the EA- phase, whereas the opposite scenario during the EMA and LIA may support the predominance of the EA phase, which would favour the occurrence of frequent and persistent blocking events in the Atlantic region during these periods.Elsevier Ltd2016201820162016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion44 p.application/pdfhttps://hdl.handle.net/2445/101594Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: http://dx.doi.org/10.1016/j.quascirev.2016.07.021Quaternary Science Reviews, 2016, vol. 149, p. 135-150http://dx.doi.org/10.1016/j.quascirev.2016.07.021cc-by-nc-nd (c) Elsevier Ltd, 2016http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1015942026-05-29T05:05:01Z
dc.title.none.fl_str_mv Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
title Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
spellingShingle Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
Sánchez López, Guiomar
Paleoclimatologia
Península Ibèrica
Ecologia dels llacs
Interacció oceà-atmosfera
Climatologia
Paleoclimatology
Iberian Peninsula
Lake ecology
Ocean-atmosphere interaction
Climatology
title_short Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
title_full Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
title_fullStr Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
title_full_unstemmed Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
title_sort Climate reconstruction for the last two millennia in Central Iberia: the role of East Atlantic (EA), North Atlantic Oscillation (NAO) and their interplay over the Iberian Peninsula
dc.creator.none.fl_str_mv Sánchez López, Guiomar
Hernández Hernández, Armand
Pla Rabés, Sergi
Trigo, Ricardo M.
Toro Velasco, Manuel
Granados, Ignacio
Sáez, Alberto
Masqué, Pere
Pueyo Mur, Juan José
Rubio de Inglés, María Jesús
Giralt Romeu, Santiago
author Sánchez López, Guiomar
author_facet Sánchez López, Guiomar
Hernández Hernández, Armand
Pla Rabés, Sergi
Trigo, Ricardo M.
Toro Velasco, Manuel
Granados, Ignacio
Sáez, Alberto
Masqué, Pere
Pueyo Mur, Juan José
Rubio de Inglés, María Jesús
Giralt Romeu, Santiago
author_role author
author2 Hernández Hernández, Armand
Pla Rabés, Sergi
Trigo, Ricardo M.
Toro Velasco, Manuel
Granados, Ignacio
Sáez, Alberto
Masqué, Pere
Pueyo Mur, Juan José
Rubio de Inglés, María Jesús
Giralt Romeu, Santiago
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Paleoclimatologia
Península Ibèrica
Ecologia dels llacs
Interacció oceà-atmosfera
Climatologia
Paleoclimatology
Iberian Peninsula
Lake ecology
Ocean-atmosphere interaction
Climatology
topic Paleoclimatologia
Península Ibèrica
Ecologia dels llacs
Interacció oceà-atmosfera
Climatologia
Paleoclimatology
Iberian Peninsula
Lake ecology
Ocean-atmosphere interaction
Climatology
description A multi-proxy characterization of the uppermost sedimentary infill of an Iberian alpine lake (Cimera, 2140 m a.s.l.) was performed to establish the climatic and environmental conditions for the Iberian Central Range (ICR) over the last two millennia. This multi-proxy characterization was used to reconstruct the intense runoff events, lake productivity and soil erosion in the lake catchment and interpret these factors in terms of temperature and precipitation variability. The Roman Period (RP; 200 BCE - 500 CE) beginning was characterized by an alternation between cold and warm periods as indicated by shortlived oscillations of intense runoff conditions and soil erosion, although warm conditions dominated the end of the period and the Early Middle Age (EMA; 500-900 CE) onset in the ICR. A noticeable decrease in intense runoff events and a progressive decrease in soil erosion during the late EMA indicated a shift to colder temperatures. In terms of precipitation, both the RP and EMA climate periods displayed a transition from dry to wet conditions that led to a decrease in lake productivity. The Medieval Climate Anomaly (MCA; 900-1300 CE) was characterized by warm and dry conditions with frequent intense runoff episodes and increases in lake productivity and soil erosion, whereas the Little Ice Age (LIA; 1300 -1850 CE) showed the opposite characteristics. The Industrial Era (1850-2012 CE) presented an increase in lake productivity that likely demonstrates the influence of global warming. The spatio-temporal integration of the Cimera record with other Iberian reconstructions has been used to identify the main climate drivers over this region. During the RP and EMA, N-S and E-W humidity gradients were dominant, whereas during the MCA and LIA, these gradients were not evident. These differences could be ascribed to interactions between the North Atlantic Oscillation (NAO) and East Atlantic (EA) phases. During the RP, the general warm conditions and the EeW humidity gradient indicate a dominant interplay between a negative NAO phase and a positive EA phase (NAO- EA+), whereas the opposite conditions during the EMA indicate a NAO+ EA- interaction. The dominant warm and arid conditions during the MCA and the cold and wet conditions during the LIA indicate the interplay of the NAO+ EA+ and NAO- EA- , respectively. Furthermore, the higher solar irradiance during the RP and MCA may support the predominance of the EA- phase, whereas the opposite scenario during the EMA and LIA may support the predominance of the EA phase, which would favour the occurrence of frequent and persistent blocking events in the Atlantic region during these periods.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/101594
url https://hdl.handle.net/2445/101594
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.quascirev.2016.07.021
Quaternary Science Reviews, 2016, vol. 149, p. 135-150
http://dx.doi.org/10.1016/j.quascirev.2016.07.021
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier Ltd, 2016
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier Ltd, 2016
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 44 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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