Ice core data - Ice Ages and Interglacials: Measurements, Interpretation, and Models - page 142

Figure 4.9. Vostok ice core data. The upper curve is variation of temperature as interpreted
from d D vs. depth of the ice core. The middle curve is the d 18 O profile in the atmosphere from
gas bubbles. The lower curve of ice volume implied by d 18 O in ocean sediments is provided for
comparison (Petit et al., 1999).
Figure 4.10. Estimated temperature difference from today at EPICA Dome C vs. age (EPICA,
2004).