The Recurrence Time of Dansgaard–Oeschger Events and Limits on the Possible Periodic Component

  title={The Recurrence Time of Dansgaard–Oeschger Events and Limits on the Possible Periodic Component},
  author={Peter D. Ditlevsen and Mikkel S. Kristensen and Katrine Krogh Andersen},
  journal={Journal of Climate},
Abstract By comparing the high-resolution isotopic records from the Greenland Ice Core Project (GRIP) and the North Greenland Ice Core Project (NGRIP) ice cores, the common climate signal in the records has been approximately separated from local noise. From this, an objective criterion for defining Dansgaard–Oeschger (DO) events is achieved. The analysis identifies several additional short-lasting events, increasing the total number of DO events to 27 in the period 12–90 kyr before present (BP… Expand

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