The imprint of climate within Northern Hemisphere trees

Scott St. George, Toby R. Ault

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

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

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalQuaternary Science Reviews
Volume89
DOIs
StatePublished - Apr 1 2014

Fingerprint

Northern Hemisphere
climate
regional difference
dendroclimatology
reconstruction
climate signal
tree ring
surveying
seasonality
growth rings
tree growth
ecology
Climate
Hemisphere
biology
Biological Sciences
ability
trend
interaction
Ring Width

Keywords

  • Dendrochronology
  • Northern Hemisphere
  • Paleoclimatology
  • Seasonality
  • Tree rings

Cite this

The imprint of climate within Northern Hemisphere trees. / St. George, Scott; Ault, Toby R.

In: Quaternary Science Reviews, Vol. 89, 01.04.2014, p. 1-4.

Research output: Contribution to journalArticle

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