Original dataset of master stand and reference chronologies for living Silver fir (Abies alba Mill.) and European beech (Fagus sylvatica L.) in the French Pyrenees (France)

The dataset under consideration provides original reference and local master stand tree-ring chronologies from fir and beech living trees, acquired since 2016 in 14 stands located in the French central Pyrenees.The trees were sampled either with an increment borer or a chainsaw. The ring widths were measured at a resolution of 0.001 mm using a LINTAB sliding table connected to TsapWin software (RINNTECH, Heidelberg, Germany), or using CooRecorder software applied to a high-resolution scan of the samples.Cross-dating was conducted using CDendro software programs, and the chronologies exhibiting the weakest correlations were excluded to construct master stand chronologies and reference chronologies for the Pyrenees. It is asserted that all master stand and reference chronologies are suitable for dendroarchaeological, dendroecological and dendroclimatological studies.