Glacial–interglacial changes in ocean surface conditions in the Southern Hemisphere

F. Vimeux (), V. Masson, J. Jouzel, M. Stievenard and J. R. Petit
Additional contact information
F. Vimeux: Laboratoire des Sciences du Climat et de l'Environnement (UMR CEA/CNRS 1572)
V. Masson: Laboratoire des Sciences du Climat et de l'Environnement (UMR CEA/CNRS 1572)
J. Jouzel: Laboratoire des Sciences du Climat et de l'Environnement (UMR CEA/CNRS 1572)
M. Stievenard: Laboratoire des Sciences du Climat et de l'Environnement (UMR CEA/CNRS 1572)
J. R. Petit: Laboratoire de Glaciologie et de Géophysique de l'Environnement (CNRS), 54 rue Molière, Domaine Universitaire

Nature, 1999, vol. 398, issue 6726, 410-413

Abstract: Abstract The stable-isotope signatures of oxygen and hydrogen in the water of preserved ice and snow are both widely used to infer local temperatures of past environments. A derived quantity based on these two signatures, the ‘deuterium excess’1, provides additional palaeoclimatic information2,3,4, as this parameter depends on the meteorological and oceanic characteristics of the water's source-regions (in particular, their temperature2,3 and relative humidity4). Published studies mainly focus on records from the past 40,000 years. Here we present a deuterium-excess history obtained from ice cores from Vostok, East Antarctica, spanning the full glacial–interglacial cycle of the past 150,000 years. The deuterium-excess record shows a strong anticorrelation with the Earth's orbital obliquity (∼41,000-year periodicity), and values are markedly higher during the cold stage 5d (following the last interglacial) than during the other cold stages. We interpret the relationship with obliquity as resulting from changes in the latitudinal insolation gradient affecting ocean surface conditions and, thus, the delivery of moisture to the polar region. We argue that the high 5d values, relative to other cold stages, are driven by relatively less moisture delivered from high latitudes, and more from low latitudes. The deuterium-excess in Antarctic precipitation thus provides long-term, spatially integrated information on ocean surface conditions and ocean/atmosphere circulations in the Southern Hemisphere.

Date: 1999
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/18860 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:398:y:1999:i:6726:d:10.1038_18860

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/18860

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().