Evidence for a ‘Medieval Warm Period’ in a 1,100 year tree‐ring reconstruction of past austral summer temperatures in New Zealand

  title={Evidence for a ‘Medieval Warm Period’ in a 1,100 year tree‐ring reconstruction of past austral summer temperatures in New Zealand},
  author={Edward R. Cook and Jonathan Gray Palmer and Rosanne D'Arrigo},
  journal={Geophysical Research Letters},
[1] The occurrence of the Medieval Warm Period (MWP) in the Southern Hemisphere is uncertain because of the paucity of well-dated, high-resolution paleo-temperature records covering the past 1,000 years. We describe a new tree-ring reconstruction of Austral summer temperatures from the South Island of New Zealand, covering the past 1,100 years. This record is the longest yet produced for New Zealand and shows clear evidence for persistent above-average temperatures within the interval commonly… 

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