"Ice shelves in general have episodic carvings and there can be large icebergs breaking off - I'm talking 100km or 200km long - every 10 or 20 or 50 years"

This quote by Ian Allison is describing the procedure of ice racks breaking off into big icebergs. Ice shelves are big, floating sheets of ice that are found in polar regions. They are continuously altering due to the effects of wind, waves, and temperature level. This quote recommends that these ice racks can experience episodic carvings, which can result in big icebergs breaking off. These icebergs can be approximately 100km or 200km long, and this process can take place every 10, 20, or 50 years. This highlights the vibrant nature of ice shelves and the significance of comprehending their behavior in order to forecast future modifications.