Results are reported on a case of cloud seeding on 9 May 1995 in order to dissipate clouds, to prevent them from precipitating, or to reduce substantially the amount of rain they would produce. Seven aircraft of types of An-26, An-30, and An-12 were used for this purpose, being equipped to seed clouds with dry ice pellets and to release pyrothechnic flares containing 2% of silver iodide or
... [Show full abstract] roughly disperse powders made from alimina. The seeding effects were monitored by following the evolution of the treated clouds from aircraft, by making radar observations, and by using data from a rain gauge network. For the period of cloud seeding the amount of rain measured in the Moscow area was 2-5 times as low as that fallen in its nearest surroundings, thus demonstrating the effectiveness of cloud seeding operations.