ABSTRACT

Around the margin of the Antarctic Continent lies the fast-

ice region. This is sea ice that either breaks out very late in

the season or remains for two or more years, forming

multiyear ice that may reach a thickness of several metres.

It lies within the coastal area of the permanent pack ice

zone as defined in Chapter 15. In addition there are the

floating ice shelves formed by glacial ice outflowing from

the ice-covered Antarctic Continent. Although such ice

shelves extend to varying degrees at locations around the

continent, the most extensive are the Ross Ice Shelf in

the Ross Sea and the Filchner and Ronne Ice Shelves in

the Weddell Sea.