The imprint of climate within Northern Hemisphere trees

摘要: Abstract Here we show how the seasonality and strength of climate signals recorded by tree-ring widths changes across Northern Hemisphere, outline major regional differences in ‘window’ sensed trees that both constrain augment our ability to interpret these records as paleoclimatic proxies. After surveying nearly 2200 ring-width records, find spatial structure tree–climate relations hemisphere matches behavior predicted several decades ago very closely, confirming principles guide dendroclimatology are robust despite complexity interactions between climate, ecology tree biology. We also filtering conducted individual creates information may be recovered from hemispheric network. This can introduce geographic biases dendroclimatic reconstructions, but it useful evaluate success reconstruction techniques explicitly represent physical processes linking growth.