TY  - JOUR
AU  - Parrenin, F.
AU  - Rémy, F.
AU  - Ritz, C.
AU  - Siegert, M. J.
AU  - Jouzel, J.
PY  - 2004//
TI  - New modeling of the Vostok ice flow line and implication for the glaciological chronology of the Vostok ice core
T2  - J. Geophys. Res.
JO  - Journal of geophysical research-atmospheres
VL  - 109
PB  - American Geophysical Union
KW  - glaciology
KW  - paleoclimatology
KW  - Antarctica
KW  - inverse theory
KW  - 1827 Hydrology: Glaciology
KW  - 3344 Meteorology and Atmospheric Dynamics: Paleoclimatology
KW  - 3260 Mathematical Geophysics: Inverse theory
KW  - 9310 Information Related to Geographic Region: Antarctica
N2  - We have used new spaceborne (elevation) and airborne (ice thickness) data to constrain a 2D1/2 model of snow accumulation and ice flow along the Ridge B-Vostok station ice flow line (East Antarctica). We show that new evaluations of the ice flow line geometry (from the surface elevation), ice thickness (from low-frequency radar data), and basal melting and sliding change significantly the chronology of the Vostok ice core. This new Vostok dating model reconciles orbital and glaciological timescales and is in good agreement with the Dome Fuji glaciological timescale. At the same time, the new model shows significantly older ages than the previous GT4 timescale for the last glacial part, being thus in better agreement with the GRIP and GISP2 chronologies.
SN  - 0148-0227
UR  - http://dx.doi.org/10.1029/2004JD004561
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=5618), last updated on Mon, 27 Apr 2009 18:26:05 +0200
ID  - Parrenin_etal2004
ER  -