Removing the no-analogue bias in modern accelerated tree growth leads to stronger medieval drought.

ABSTRACT: In many parts of the world, especially in the temperate regions of Europe and North-America, accelerated tree growth rates have been observed over the last decades. This widespread phenomenon is presumably caused by a combination of factors like atmospheric fertilization or changes in forest structure and/or management. If not properly acknowledged in the calibration of tree-ring based climate reconstructions, considerable bias concerning amplitudes and trends of reconstructed climatic parameters might emerge or low frequency information is lost. Here we present a simple but effective, data-driven approach to remove the recent non-climatic growth increase in tree-ring data. Accounting for the no-analogue calibration problem, a new hydroclimatic reconstruction for northern-central Europe re

SUBMITTER: Scharnweber T 

PROVIDER: S-EPMC6385214 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature