Forward modeling of regional scale tree-ring patterns in the southeastern United States and the recent influence of summer drought
نویسندگان
چکیده
[1] 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. Citation: Anchukaitis, K. J., M. N. Evans, A. Kaplan, E. A. Vaganov, M. K. Hughes, H. D. Grissino-Mayer, and M. A. Cane (2006), Forward modeling of regional scale treering patterns in the southeastern United States and the recent influence of summer drought, Geophys. Res. Lett., 33, L04705, doi:10.1029/2005GL025050.
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