ESS5
Prof.
Jin-Yi Yu
qThe objective is to convert some of the supercooled droplets in a cool clouds to ice and cause precipitation by the Bergeron process.
qTwo primary methods are used to trigger the precipitation process.
qDry ice is used to lower cloud temperature to a freezing point in order to stimulate ice crystal production leading to the Bergeron process.
qSilver iodide initiates the Bergeron process by directly acting as freezing nuclei.
qUnder ideal conditions, seeding may enhance precipitation by about 10%.
Cloud Seeding