Suchergebnisse

Polar ice composition and global change. Polar ice has been recently widely used to reconstruct environmental conditions of the past. For example, the oxygen or hydrogen isotopie composition of the ice can give the temperature of the site of formation and the carbon dioxide content in the occluded bubbles, the composition of the atmosphere at the time of occlusion.
Ice composition can independantly be used to better define the initial and boundary conditions, namely the conditions at the ice-bedrock interface, of polar ice sheets. Such an investigation is important for the modelling of the climate system.
Ice composition can also be used to collect information on regulation mechanisms affecting the cryosphere-ocean system.
Our research team is deeply involved into the two last approaches.