CR
Cryospheric Sciences

Ice shelf

Image of the Week: Under the Sea

Image of the Week: Under the Sea

Always wondered how it looks like under the sea ice? Getting an answer is simpler than you might think: Just go out to the front of McMurdo ice shelf in Antarctica and drill a tube into the sea ice. Then let people climb down and take pictures of the ice from below. More information: – Photo taken by Marcus Arnold, Gateway Antarctica, University of Canterbury during his November 2015, Antarc ...[Read More]

Image of the Week: Antarctic ice-shelf thickness

Image of the Week: Antarctic ice-shelf thickness

Thickness of floating ice shelves in Antarctica. Ice thickness is greatest close to the grounding line where it can reach 1000 meters or more (red). Away from the grounding line, the ice rapidly thins to reach a few hundreds of meters at the calving front. Ice thickness varies greatly from one ice shelf to another. Within ice shelves, “streams of ice” can be spotted originating from in ...[Read More]

Image of the week : formation of an ice rise

Image of the week : formation of an ice rise

Deglaciation and formation of an ice rise with the ice-sheet model BISICLES.  The simulation starts with an ice sheet in steady state that overrides a topographic high in the bed, close to the calving front. The sea level is then forced to rise steadily with 1 cm per year during 15 thousand years, and the simulation goes on until the ice sheet reaches steady state. The animation below shows that t ...[Read More]