Tree-ring and glacial evidence for the medieval warm epoch and the little ice age in southern South America

  title={Tree-ring and glacial evidence for the medieval warm epoch and the little ice age in southern South America},
  author={Ricardo Villalba},
  journal={Climatic Change},
  • R. Villalba
  • Published 1 March 1994
  • Geology
  • Climatic Change
A tree-ring reconstruction of summer temperatures from northern Patagonia shows distinct episodes of higher and lower temperature during the last 1000 yr. The first cold interval was from A.D. 900 to 1070, which was followed by a warm period A.D. 1080 to 1250 (approximately coincident with theMedieval Warm Epoch). Afterwards a long, cold-moist interval followed from A.D. 1270 to 1660, peaking around 1340 and 1640 (contemporaneously with earlyLittle Ice Age events in the Northern Hemisphere). In… Expand
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Millennium-old alerce trees (Fitzroya cupressoides (Mol.) Johnst.) have been used to develop a 1120-year reconstruction of the summer temperature departures for the Andes of northern Patagonia inExpand
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Strong changes of temperature and rainfall effected tropical South America during the last few millions of years; the sequence of the last glacialinterglacial cycle is relatively well known. HumidExpand
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Overbank flood deposits of northern coastal Peru provide the potential for the development of a late Quaternary chronology of El Nino events. Alluvial deposits from the 1982–1983 El Nino event areExpand
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