期刊
QUATERNARY SCIENCE REVIEWS
卷 43, 期 -, 页码 16-32出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.quascirev.2012.04.007
关键词
Medieval Climate Anomaly; Iberian Peninsula; Lacustrine sediments; Marine cores; North Atlantic Oscillation
资金
- CALIBRE by Spanish Inter-Ministry Commission of Science and Technology (CICYT) [CGL2006-13327-004]
- HIDROPAST by Spanish Inter-Ministry Commission of Science and Technology (CICYT) [CGL2010-16376]
- GLOBAL-KARST by Spanish Inter-Ministry Commission of Science and Technology (CICYT) [CGL2009-08415]
- DINAMO by Spanish Inter-Ministry Commission of Science and Technology (CICYT) [CGL2009-07992]
- HOLONED by Spanish Inter-Ministry Commission of Science and Technology (CICYT) [CGL2009-07603]
- GRACCIE-CONSOLIDER by Spanish Inter-Ministry Commission of Science and Technology (CICYT) [CSD2007-00067]
- Ramon y Cajal program
Selected multi-proxy and accurately dated marine and terrestrial records covering the past 2000 years in the Iberian Peninsula (IP) facilitated a comprehensive regional paleoclimate reconstruction for the Medieval Climate Anomaly (MCA: 900-1300 AD). The sequences enabled an integrated approach to land-sea comparisons and, despite local differences and some minor chronological inconsistencies, presented clear evidence that the MCA was a dry period in the Mediterranean IP. It was a period characterized by decreased lake levels, more xerophytic and heliophytic vegetation, a low frequency of floods, major Saharan eolian fluxes, and less fluvial input to marine basins. In contrast, reconstruction based on sequences from the Atlantic Ocean side of the peninsula indicated increased humidity. The data highlight the unique characteristics of the MCA relative to earlier (the Dark Ages, DA: ca 500-900 years AD) and subsequent (the Little Ice Age, LIA: 1300-1850 years AD) colder periods. The reconstruction supports the hypothesis of Trouet et al. (2009), that a persistent positive mode of the North Atlantic Oscillation (NAO) dominated the MCA. (C) 2012 Elsevier Ltd. All rights reserved.
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