Zonal circulation indices with monthly and seasonal resolutions are calculated based on gridded monthly mean sea-level pressure (SLP) reconstructed back to 1780 by Jones et al. (1999): an overall zonal index for the whole European area between 30degW and 40degE, a normalized index for the North Atlantic Oscillation (NAO), and a similar index for Central Europe. For most of the early time up to the mid-nineteenth century we get preferred negative anomalies in the NAO index for winter and preferred positive ones for summer.
CITATION STYLE
Jacobeit, J., Jönsson, P., Bärring, L., Beck, C., & Ekström, M. (2001). Zonal Indices for Europe 1780–1995 and Running Correlations with Temperature. In The Iceberg in the Mist: Northern Research in pursuit of a “Little Ice Age” (pp. 219–241). Springer Netherlands. https://doi.org/10.1007/978-94-017-3352-6_11
Mendeley helps you to discover research relevant for your work.