Related Experiment Video
Updated: Jun 29, 2026

Removal of Exogenous Materials from the Outer Portion of Frozen Cores to Investigate the Ancient Biological Communities Harbored Inside
Published on: July 3, 2016
Orbital and millennial Antarctic climate variability over the past 800,000 years
J Jouzel1, V Masson-Delmotte, O Cattani
1Laboratoire des Sciences du Climat et l'Environnement, Institut Pierre Simon Laplace, CEA-CNRS-Université de Versailles Saint-Quentin en Yvelines, CE Saclay, Gif-sur-Yvette, France. jean.jouzel@lsce.ipsl.fr
Abstract:
A high-resolution deuterium profile is now available along the entire European Project for Ice Coring in Antarctica Dome C ice core, extending this climate record back to marine isotope stage 20.2, approximately 800,000 years ago. Experiments performed with an atmospheric general circulation model including water isotopes support its temperature interpretation. We assessed the general correspondence between Dansgaard-Oeschger events and their smoothed Antarctic counterparts for this Dome C record, which reveals the presence of such features with similar amplitudes during previous glacial periods. We suggest that the interplay between obliquity and precession accounts for the variable intensity of interglacial periods in ice core records.
Related Concept Videos
The Carbon Cycle
What is Climate?
Global Climate Change
Conditions on Early Earth
Variation of Atmospheric Pressure
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
Microbes and Climate Change

