Lateglacial tree-ring chronologies from Southern France, Switzerland, Germany and Northern Italy reveal synchronism over vast areas e.g. between Northwestern and Eastern Germany and Eastern Swiss Plateau. Particular growth characteristics in trees as well as changes in average life span of trees reflect environmental variations. There are distinct high and low frequency signals that may be observed not only regionally but over wider areas, some even up to hemispheric dimensions. Fossil pine forests grew in the Western Alps and the Durance Basin (France) contemporaneously. Growth pattern as well as agreement of the French chronologies deflect distinctively from those observed in Central Europe.
Interpretations of the signals regarding the site characteristics may be given. We also focus on the alignment of the signals to other high resolution archives such as European lacustrine varves, and beyond to polar ice cores and marine varves as well. Relevant characteristics in the 14C pattern derived from decadal samples in the late Allerød and early YD interfere with hemispheric and global dimensions.