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