Buried under 4 km (2 1/2 miles) of ice in the heart of the Antarctic
continent lies Lake Vostok, one of the world's biggest freshwater lakes.
For up to 25 million years the Lake has been covered by an ice sheet and
isolated from the atmosphere. In 1996 European satellite imagery
confirmed the lake's existence, sparking scientific inquiry into the
Lake and its processes. Lamont scientists are using ice-penetrating
radar data, and GPS measurements to study the melting and refreezing in
the lake, and the direction of ice flow of the overlying glacier to
understand better the dynamics of the water exchange system. The
geologic origin of the lake provide important boundary conditions for
the ecosystem. The magnetic and gravity field of the Earth are used to
interpret the geologic structures beneath the ice sheet.
today's Introductory presentation, you will find out about the upcoming
International Polar Year (IPY) and other projects that investigate