Tuesday, January 14, 2014

DO Events Cause Rapid Warming Events in the Last Glacial Period

Here is my evidence that DO [Dansgaard-Oeschger] events are
associated with rapid warming periods in the glacial record.

The the top figure in the graph below uses the GRIP chronology
from 0 to 45,000 BP.


There is some controversy about the GISP2, GRIP and NGRIP
scaling chronologies for the Greenland ice core. Shown below
are the timing of DO events 0, 2, 8, 11, 12, and 13 using the latest
NGRIP-based Greenland Ice Core Chronology 2005 (GICC05)
time scale to the period between 14.9 – 32.45 ka b2k (before
A.D. 2000) [Thanks to Rodger Andrews for pointing this out].

Reference:  http://www.isogklima.ku.dk/english/publications/papers/pdfs/244.pdf

Note that DO events 0, 2, 8, 11, 12, and 13 have been placed
on this new scale.

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