Tracking Holocene drift-ice limits on the northwest–southwest Iceland shelf: Comparing proxy data with observation and historical evidence

Holocene dynamics of the Arctic's largest ice shelf.

Ice shelves in the Arctic lost more than 90% of their total surface area during the 20th century and are continuing to disintegrate rapidly. The significance of these changes, however, is obscured by the poorly constrained ontogeny of Arctic ice shelves. Here we use the sedimentary record behind the largest remaining ice shelf in the Arctic, the Ward Hunt Ice Shelf (Ellesmere Island, Canada), t...

Exposure-age record of Holocene ice sheet and ice shelf change in the northeast Antarctic Peninsula

This paper describes glacialegeologic observations and cosmogenic-nuclide exposure ages from ice-free areas adjacent to the Sjögren, Boydell, and Drygalski Glaciers of the northeast Antarctic Peninsula. These provide a record of Holocene glacier and ice shelf change in this region. Early Holocene ice surface elevation near the present coastline was locally at least 500 m above present sea level...

The Effects of Rotation and Ice Shelf Topography on Frazil-Laden Ice Shelf Water Plumes

A model of the dynamics and thermodynamics of a plume of meltwater at the base of an ice shelf is presented. Such ice shelf water plumes may become supercooled and deposit marine ice if they rise (because of the pressure decrease in the in situ freezing temperature), so the model incorporates both melting and freezing at the ice shelf base and a multiple-size-class model of frazil ice dynamics ...

Sea-ice data assimilation at the mid-Holocene

Model-data comparison and data assimilation of mid-Holocene Arctic sea-ice concentration F. Klein, H. Goosse, A. Mairesse, and A. de Vernal Université catholique de Louvain, Earth and Life Institute, Georges Lemaître Centre for Earth and Climate Research, Place Louis Pasteur, 3, 1348 Louvain-la-Neuve, Belgium GEOTOP, Université du Québec à Montréal, P.O. Box 8888, succursale “centre ville” Mont...

Ice shelf changes on the Antarctic Peninsula