The data on mean snow isotopic composition in the upper 1.5 m of snow and mean density of the upper 20 cm of snow along the Vostok flow line (VFL) traverse, central East Antarctica. Reference:
Ekaykin A.A., V.Ya. Lipenkov, Yu.A. Shibaev. Spatial distribution of the snow accumulation rate along the ice flow lines between Ridge B and Lake Vostok. — Led i Sneg, 2012, v. 4, p. 122-128.
The snow accumulation rate data can be found here:
SMB Vostok