Northern North American Tree-Ring Evidence for Regional Temperature Changes after Major Volcanic Events

  title={Northern North American Tree-Ring Evidence for Regional Temperature Changes after Major Volcanic Events},
  author={Rosanne D'Arrigo and Gordon C. Jacoby},
  journal={Climatic Change},
Maximum latewood density data from trees at thirteen temperature-sensitive sites along the northern treeline of North America are used to evaluate the spatial patterns of response to four known volcanic events just prior to the period of modern observations: in 1640, 1783, 1815 and 1835. A previously unknown event is also postulated for 1699. This tree-ring density parameter is used because it shows a stronger and more consistent short-term, temperature-related volcanic signal than ring width… 
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