Anomalously mild Younger Dryas summer conditions in southern Greenland

Svante Björck, Ole Bennike, Peter Rosén, Camilla S. Andresen, Sjoerd Bohncke, Eigil Kaas, Daniel Conley

Research output: Contribution to journalArticleResearchpeer-review

73 Citations (Scopus)

Abstract

The first late-glacial lake sediments found in Greenland were analyzed with respect to a variety of environmental variables. The analyzed sequence covers the time span between 14 400 and 10 500 calendar yr B.P., and the data imply that the conditions in southernmost Greenland during the Younger Dryas stadial, 12 800–11 550 calendar yr B.P., were characterized by an arid climate with cold winters and mild summers, preceded by humid conditions with cooler summers. Climate models imply that such an anomaly may be explained by local climatic phenomenon caused by high insolation and Föhn effects. It shows that regional and local variations of Younger Dryas summer conditions in the North Atlantic region may have been larger than previously found from proxy data and modeling experiments.
Original languageEnglish
Pages (from-to)427–430
Number of pages4
JournalGeology
Volume30
Issue number5
DOIs
Publication statusPublished - May 2002

Keywords

  • Lake sediments
  • Paleoclimatic proxy records
  • Southern Greenland
  • Younger Dryas

Programme Area

  • Programme Area 5: Nature and Climate

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