Extending North Atlantic Oscillation reconstructions back to 1500

Fig. 3 Winter NAO graph Extending North Atlantic Oscillation reconstructions back to 1500
Atmospheric Science Letters, 2002, 2, 114-124 (doi:10.1006/asle.2001.0044).

J. Luterbacher1, 2 , E. Xoplaki2, 3, D. Dietrich4, P.D. Jones5, T.D. Davies5, D. Portis6, 7, J.F. Gonzalez-Rouco8, 9, H. von Storch8, D. Gyalistras2, C. Casty2 and H. Wanner 1, 2
1 National Competence Center of Research in Climate, University of Bern, Hallerstrasse 12, CH-3012, Bern, Switzerland
2 Institute of Geography, Climatology and Meteorology, University of Bern, CH-3012 Bern, Switzerland
3 Department of Meteorology and Climatology, University of Thessaloniki, GR-54006, Thessaloniki, Greece
4 Institute of Mathematical Statistics, University of Bern, CH-3012, Bern, Switzerland
5 Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, U.K.
6 Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, Oklahoma, 73019, U.S.A.
7 Institute of Coastal Research, GKSS Research Center, D-21502, Geesthacht, Germany
8 Departamento Astrafisica y Ciencias de la Atmosfera, Universidad Complutense de Madrid, E-29040, Madrid, Spain

2 For further information contact Juerg Luterbacher juerg@giub.unibe.ch

Monthly (1659-2001) and seasonal (1500-1658) North Atlantic Oscillation (NAO) indices were estimated using instrumental and documentary proxy predictors from Eurasia. Uncertainty estimates were calculated for the reconstructions, and the variability of the 500-year winter NAO has been assessed. The late twentieth century NAO extremes are within the range of variability during earlier centuries.

Download the numerical reconstruction grids produced in this study from the WDC Paleo Archive:
North Atlantic Oscillation (NAO) indices
Monthly 1659 A.D. to July 2001 A.D. and Seasonal 1500 A.D. to 1658 A.D.

Reconstruction Description

To read or view the full study, please visit the Science Direct website.
It was published in Atmospheric Science Letters 2, 114-124, (doi:10.1006/asle.2001.0044), 2002.

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26 March 2002