Holocene climate variability in Antarctica based on 11 ice-core isotopic records

Auteurs :
MASSON, V.
VIMEUX, F.
JOUZEL, J.
MORGAN, V.
DELMOTTE, M.
CIAIS, P.
HAMMER, C.
JOHNSEN, S.
LIPENKOV, V.Y.
MOSLEY-THOMPSON, E.
PETIT, J.-R.
STEIG, E.J.
STIEVENARD, M.
VAIKMAE, R.

Description :
A comparison is made of the Holocene records obtained from water isotope measurements along 11 ice cores from coastal and central sites in east Antarctica and west Antarctica. the longterm trends possibly reflect local ice sheet elevation fluctuations superimposed on common climatic fluctuations. All the records confirm the widespread Antarctic early Holocene optimum between 11,500 and 9000 yr; in the Ross Sea sector, a secondary optimum is identified between 7000 and 5000 yr, whereas all eastern Antarctic sites show a late optimum between 6000 and 3000 yr.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 2000, vol. 54, n°. 3, p. 348-358, Collation : Illustration, Références bibliographiques : 52 ref.

Date :
2000

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier