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Centre for Atmospheric Science

Ice and Mixed Phase Clouds - Columns

Columns are formed at colder temperatures than plates generally below -40C at a range of supersaturations. As with plates, column aspect ratio is influenced by temperature and supersaturation. Additionally columns may be solid, hollow, or scroll like. This image shows a variety of column types.

Columns are formed at colder temperatures than plates generally below -40C at a range of supersaturations. As with plates, column aspect ratio is influenced by temperature and supersaturation. Additionally columns may be solid, hollow, or scroll like. This image shows a variety of column types.