Accretion-Aggregation Process
Accretion (Riming)
Aggregation
Supercooled water droplets will freeze on contact with ice
ice crystal
Small ice particles will adhere to ice crystals
snowflake
Splintering
Ahrens, Fig. 5.17
Also known as the Bergeron Process after the meteorologist who first recognized the importance of ice in the precipitation process
Accretion-supercooled droplets freeze on contact with ice
Splintering-ice crystals shatter into smaller crystals.
Aggregation-small crystals adhere to other crystals to from SNOWFLAKES