Luterbacher et al NAO reconstructions

Reconstructed monthly NAO index back to December 1658 and seasonal estimates 1500-1658.

The NAO index is defined as the standardized (1901-1980) difference between the SLP average of four gridpoints on a 5x5 longitude-latitude grid over the Azores and over Iceland.

The reconstructions are based on a Principal Component Regression analysis. More details can be found in Luterbacher et al. (2001)

Luterbacher, J., Xoplaki, E., Dietrich, D., Jones, P.D., Davies, T.D., Portis, D., Gonzalez-Rouco, J.F., von Storch, H., Gyalistras, D., Casty, C., and Wanner, H., 2001. Extending North Atlantic Oscillation Reconstructions Back to 1500. Atmos. Sci. Lett., 2, 114-124 (https://doi.org/10.1006/asle.2002.0047).

Filename	Size	Description
naomonjurg.dat	60 kilobytes	Monthly Dec 1658 - Jul 2001
naoseajurg.dat	10 kilobytes	Seasonal 1500-1658

License

These datasets are made available under the Open Database License. Any rights in individual contents of the datasets are licensed under the Database Contents License under the conditions of Attribution and Share-Alike.

LUTERBACHER NAO RECONSTRUCTION BACK TO 1500