process of spreading either dry ice or more commonly, silver iodide aerosols, into the upper part of clouds to try to stimulate the precipitation process and form rain.
uses planes to spray clouds with chemicals to condense smaller particles into larger rain droplets.
increases rainfall rates by approximately 10% to 30% per year and cloud seeding operations cost much less than the desalination process.
Hygroscopic Cloud Seeding:
Disperses salts through flares or explosives in the lower portions of clouds. The salt grows in size as water joins with them
Static Cloud Seeding:
spreading a chemical like silver iodide into clouds. The silver iodide provides a crystal around which moisture can condense.
moisture is already present in the clouds, but silver iodide essentially makes rain clouds more effective at dispensing their water.
Dynamic Cloud Seeding
to boost vertical air currents, which encourages more water to pass through the clouds, translating into more rain
considered more complex than static cloud seeding because it depends on a sequence of events working properly.
relief to drought-stricken areas
Project Varshadhari’ in Karnataka in 2017
augment production of hydroelectricity during the last 40 years in Tasmania, Australia.
to maintain minimum summer flows of the rivers and dilute the impact of treated wastewater discharges
Project Sky Water” of the U.S.A. in 1962 for weather modification through cloud seeding aimed at fog dispersal, hail suppression, and cyclone modification
to settle down toxic air pollutants through the rain
Central Pollution Control Board along with other researchers mulled the use of cloud seeding to tackle Delhi’s air pollution.
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