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The Holocene-Younger Dryas transition recorded at Summit, Greenland

  • Author(s): Taylor, KC
  • Mayewski, PA
  • Alley, RB
  • Brook, EJ
  • Gow, AJ
  • Grootes, PM
  • Meese, DA
  • Saltzman, ES
  • Severinghaus, JP
  • Twickler, MS
  • White, JWC
  • Whitlow, S
  • Zielinski, GA
  • et al.
Abstract

Analysis of ice from Dye-3, Greenland, has demonstrated that the transition between the Younger Dryas and Holocene climate periods occurred over a 40-year period. A near annually resolved, multiparameter record of the transition recorded in the GISP2 core from Summit, Greenland, shows that most of the transition occurred in a series of steps with durations of about 5 years. Some climate proxies associated with mid-latitude sources appear to have changed about 15 years before climate proxies associated with more northern regions. Changes in atmospheric water vapor are likely to have played a large role in the climate transition.

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