Archaeoclimatology of the Holocene: The comparison of homogeneity of tree-ring widths with solar activity and other climatic indicators (»proxies«)

Abstract

Recent approaches to the validity of both the homogeneity of tree-ring widths of Middle-European oaks as well as two proxies for the activity of the sun do not stand our thorough comparison. This in particular concerns their alleged climatic meaning, e.g. regarding precipitation. Better correspondences, on the other hand, seem to be recognizable for the past 9 000 years between this same homogeneity and the alpine tree lines, as well as temperature evidence of the NGRIP ice core.