The evolving shape of mighty iceberg A68a
A68 was for a time the biggest iceberg in the world but gradually it has lost much of its bulk. As it's moved from Antarctica into the South Atlantic over three-a-and-a-half years, parts have broken off, and it is also melting, of course. This movie depicts the changing depth of the berg's keel - that part of the frozen object hidden below the waterline. There are places where A68a - the name for the largest remnant - is still pretty thick. The movie is made from satellite data processed and analysed by the Nerc Centre for Polar Observation and Modelling (CPOM) at the University of Leeds, UK.
Read more: Giant Antarctic iceberg A68a is not done yet
