globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2016.07.021
Scopus记录号: 2-s2.0-84979783964
论文题名:
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
作者: Sánchez-López G.; Hernández A.; Pla-Rabes S.; Trigo R.M.; Toro M.; Granados I.; Sáez A.; Masqué P.; Pueyo J.J.; Rubio-Inglés M.J.; Giralt S.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 149
起始页码: 135
结束页码: 150
语种: 英语
英文关键词: Alpine lake ; EA ; Iberian climate ; Lacustrine sediments ; NAO ; Soil erosion
Scopus关键词: Atmospheric pressure ; Catchments ; Erosion ; Global warming ; Precipitation (meteorology) ; Productivity ; Runoff ; Soils ; Alpine lakes ; Environmental conditions ; Iberian climate ; Lacustrine sediments ; Medieval climate anomalies ; North Atlantic oscillations ; Precipitation variability ; Soil erosion ; Lakes ; environmental conditions ; global warming ; lacustrine deposit ; lacustrine environment ; Little Ice Age ; Medieval Warm Period ; North Atlantic Oscillation ; precipitation (climatology) ; reconstruction ; runoff ; soil erosion ; solar radiation ; Atlantic Ocean ; Atlantic Ocean (East) ; Iberian Peninsula
英文摘要: 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 short-lived 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 E–W 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. © 2016 Elsevier Ltd
资助项目: This work was financed by the Spanish Ministry of Economy and Competitiveness through the PALEONAO project (CGL2010-15767/BTE), the RapidNAO project (CGL2013-40608-R) and a PhD JAE grant (JAEPRE2011-01171, BOE 03/02/2011) to Guiomar Sánchez from the Spanish National Research Council (CSIC). Pere Masqué was partly supported by the Generalitat de Catalunya to the research group MERS (2014 SGR-1356). Armand Hernández was supported by the Portuguese Science Foundation (FCT) through a post-doctoral grant (SFRH/BPD/79923/2011). We thank the 'Servicio Territorial de Medio Ambiente de Ávila' of 'Junta de Castilla y León' for permitting the field work.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59459
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作者单位: Institute of Earth Sciences Jaume Almera (ICTJA – CSIC), Lluís Solé i Sabarís s/n, Barcelona, Spain; Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal; Centre de Recerca Ecològica i Aplications Forestals (CREAF), Cerdanyola del Vallés, Spain; Centro de Estudios Hidrográficos (CEDEX), Paseo Bajo Virgen del Puerto, 3, Madrid, Spain; Centro de Investigación, Seguimiento y Evaluación. Parque Nacional de la Sierra de Guadarrama., Cta. M-604, Km 27.6, Madrid, Rascafría, Spain; Faculty of Geology, Department of Earth and Ocean Dynamics, Universitat de Barcelona, Martí i Franquès s/n, Barcelona, Spain; Departament de Física and Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain; School of Science, Centre for Marine Ecosystems Research, Edith Cowan University, Joondalup, WA, Australia; School of Physics and Oceans Institute, University of Western Australia, 35 Stirling Highway, Crawley, Australia

Recommended Citation:
Sánchez-López G.,Hernández A.,Pla-Rabes S.,et al. 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[J]. Quaternary Science Reviews,2016-01-01,149
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