EPICA Dome C Ice Core 800KYr deuterium data and temperature estimates

• Main Authors: Jouzel, Jean, Masson-Delmotte, Valerie
• Format: Dataset
• Language: English
• Published: PANGAEA 2007
• Subjects: Age model; ice flow model; Calculated; DEPTH; ice/snow; Dome C; Antarctica; EDC; EPICA; EPICA Dome C; European Project for Ice Coring in Antarctica; ICEDRILL; Ice drill; Isotope ratio mass spectrometry; Sample ID; Temperature; difference; δ Deuterium; Antarctic; Snow Dome; Antarc*; Dansgaard-Oeschger events; ice core; Ice Sheet
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.683655; https://doi.org/10.1594/PANGAEA.683655

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, ~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. Temperature was estimated after correction for sea-water isotopic composition (Bintanja et al, 2005) and for ice sheet elevation (Parrenin et al, 2007) on EDC3 age scale (Parrenin et al, 2007).