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Keywords from Image Description:
Pbo. Preboreal oscillation PBO seen in NGRIP deltaO data curve Own Merikanto Legend This is temperaturerelated oxygen isotope data curve between BP th millennium to th millennium BC It is based on NGRIP Greenland ice core data YD Younger Dryas PB Beginning of preboreal PBO PreBoreal Oscillation This file is based to file NGRIPD