Procedure for Evaluating the Effect of Convective Cloud Modification for the Purpose of Artificially Controlling Precipitation and the Results of Aircraft Studies on the Structure of Cumulus Clouds,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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As operational tests on the artificial control of precipitation have shown, one of the main factors ensuring the successful solution of this problem is an allowance for the physical properties of various forms of clouds in developing methods of modification and evaluating their effectiveness. The principal form of clouds subjected to modification by the UkrNIGMI in the warm part of the year was cumulus and cumulus congestus. In the first stage, all suitable clouds were seeded over the test area of the experimental meteorological proving ground MPG of the UkrNIGMI. The effect of the modification was evaluated by a comparison of the amount of precipitation over the test area and the control area of the MPG.