Iceberg

• Iceberg B-17B 140 km2 (54 sq mi), 1999, shipping alert issued December 2009
Shape
In addition to size classification, Icebergs can also be classified on the basis of their shape. The two basic types of iceberg forms are tabular and non-tabular. Tabular icebergs have steep sides and a flat top, much like a plateau, with a length-to-height ratio of more than 5:1. This type of iceberg can be quite large, as in the case of Pobeda Ice Island.