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

ABSTRACT:
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.

DATA:
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.



DOCUMENTATION:
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