Cloud Seeding

Cloud Seeding: Recently, Delhi Cabinet approved  cloud seeding trials across the Capital  to  combat air pollution and water scarcity.

• About Cloud seeding : Cloud seeding is a weather modification technique that aims to increase precipitation, like rain or snow, by introducing substances (like silver iodide or salt) into clouds.
• How it work?

o Identification of Suitable Clouds: Not all clouds can be seeded. Meteorologists identify clouds with enough moisture and potential for precipitation.

o Delivery of Seeding Agents: Aircraft or ground-based generators release chemicals like: Silver iodide Sodium chloride (table salt) Potassium iodide Dry ice (solid CO₂)

o Formation of Water Droplets: These substances act as condensation nuclei, around which water vapor condenses to form larger water droplets.

o Rainfall Initiation: As these droplets grow heavier, they eventually fall as rain or snow.

• Applications:

o Agriculture: To support crops during dry spells.

o Water Management: To fill reservoirs and recharge groundwater.

o Air Quality: Sometimes used to reduce pollution or suppress dust.