THE HOLOCENE YOUNGER-DRYAS TRANSITION RECORDED AT SUMMIT, GREENLAND

Analysis of ice from Dye-3, Greenland, has demonstrated that the trans ition 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 d urations of about 5 years. Some climate proxies associated with more n orthern regions. Changes in atmospheric water vapor are likely to have played a large role in the climate transition.