Forward modeling of regional scale tree-ring patterns in the southeastern United States and the recent influence of summer drought

LDEO Publication: 
Publication Type  Journal Article
Year of Publication  2006
Authors  Anchukaitis, K. J.; Evans, M. N.; Kaplan, A.; Vaganov, E. A.; Hughes, M. K.; Grissino-Mayer, H. D.; Cane, M. A.
Journal Title  Geophysical Research Letters
Volume  33
Issue  4
Pages  -
Journal Date  Feb 21
ISBN Number  0094-8276
Accession Number  ISI:000235964800003
LDEO Publication Number  6843
Key Words  tree-rings; north-atlantic oscillation; climate; variability; growth; temperature; rainfall; ocean

We use a mechanistic model of tree-ring formation to simulate regional patterns of climate-tree growth relationships in the southeastern United States. Modeled chronologies are consistent with actual tree-ring data, demonstrating that our simulations have skill in reproducing broad-scale patterns of the proxy's response to climate variability. The model predicts that a decrease in summer precipitation, associated with a weakening Bermuda High, has become an additional control on tree ring growth during recent decades. A nonlinear response of tree growth to climate variability has implications for the calibration of tree-ring records for paleoclimate reconstructions and the prediction of ecosystem responses to climate change.


021DVTimes Cited:5Cited References Count:29

URL  <Go to ISI>://000235964800003
DOI  Doi 10.1029/2005gl025050