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AGU: Geophysical Research Letters

 

Keywords

  • COMNISPA record
  • Holocene climate
  • stable isotopes

Index Terms

  • Biogeosciences: Paleoclimatology and paleoceanography
  • Atmospheric Processes: Paleoclimatology
  • Geochronology: Quaternary geochronology
  • Global Change: Climate variability
  • Geographic Location: Europe

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L02704, 4 PP., 2007
doi:10.1029/2006GL028600

Persistent influence of the North Atlantic hydrography on central European winter temperature during the last 9000 years

A. Mangini

Heidelberger Akademie der Wissenschaften, Heidelberg, Germany

P. Verdes

Heidelberger Akademie der Wissenschaften, Heidelberg, Germany

C. Spötl

Institut für Geologie und Paläontologie, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria

D. Scholz

Heidelberger Akademie der Wissenschaften, Heidelberg, Germany

N. Vollweiler

Heidelberger Akademie der Wissenschaften, Heidelberg, Germany

B. Kromer

Heidelberger Akademie der Wissenschaften, Heidelberg, Germany

A prominent feature of the N. Atlantic's Holocene climate is a series of centennial and millennial shifts in ocean surface hydrography (Bond et al., 2001; Oppo et al., 2003). Here, we compare a climate reconstruction from the Central Alps for the last 9,000 years derived from the oxygen isotope record in stalagmites with the percentage of hematite-stained-grains in N. Atlantic sediments, an indicator for the proportion of ice-bearing surface water from north of Iceland. The excellent match between the two curves proves that meteorological conditions in the Alpine region responded synchronously to changes in the hydrography of the N. Atlantic during winter. In addition, the speleothem record suggests significant multi centennial and millennial variability of N. European winters throughout the past 9,000 years that might have been incompletely recorded in tree-ring archives.

Received 30 October 2006; accepted 13 December 2006; published 18 January 2007.

Citation: Mangini, A., P. Verdes, C. Spötl, D. Scholz, N. Vollweiler, and B. Kromer (2007), Persistent influence of the North Atlantic hydrography on central European winter temperature during the last 9000 years, Geophys. Res. Lett., 34, L02704, doi:10.1029/2006GL028600.

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