ESS5
Prof.
Jin-Yi Yu
Riming and
Aggregation
q Riming
:
Liquid water freezing onto ice crystals producing rapid growth.
q Aggregation
: The
joining of multiple ice crystals through the bonding of surface water builds ice crystals to the
point of overcoming updrafts
q Collision combined
with riming and aggregation allow formation
of precipitation within 1/2 hour of initial formation.