Context: Recently, the arid nation of the United Arab Emirates (UAE) experienced the "heaviest rain ever," resulting in flooding in Dubai, with the widespread rain believed to have been induced by "cloud seeding," among other factors.
Cloud Seeding
o Static Cloud Seeding: It involves the dispersion of a chemical, like silver iodide, into clouds. This substance acts as a crystal around which moisture can condense, enhancing the efficiency of rain clouds in releasing water.
o Dynamic Cloud Seeding: It focuses on amplifying vertical air currents, promoting increased water passage through clouds, resulting in more rainfall. This method employs up to 100 times more ice crystals compared to the static approach [source: Cotton].
o Hygroscopic Cloud Seeding: It utilizes salts dispersed through flares or explosives in the lower sections of clouds. These salts grow in size as they merge with water.
oWeather forecasters monitor atmospheric conditions and identify suitable clouds for seeding based on precipitation patterns.
oThis technique can increase rainfall by up to 30-35 per cent in clear conditions and 10-15 per cent in more humid conditions.
Environmental Impact of Cloud Seeding
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