The Second Israeli Randomized Cloud Seeding Experiment: Evaluation of the Results

Publisher Website
Google Scholar
Abstract
The Second Israeli Randomized Cloud Seeding Experiment was conducted during the six rainfall seasons November–April 1969–75. Its primary purpose was to examine the possibilities of enhancing rainfall in the catchment area of Lake Kinneret which serves as the principal reservoir of the Israel National Water Carrier. The present report constitutes the final statistical evaluation of this experiment. It has been preceded by a series of preliminary reports, some of which have dealt with specific subject areas. The study shows positive overall results, of 13 and 18% increases of precipitation under seeding in the total North and Catchment areas, respectively. The corresponding significance levels are 2.8 and 1.7%. These findings may be attributed to the following combination of reasons: 1) The clouds are cold (winter) continental cumuliform clouds, associated mostly with cold fronts and post-frontal bands, and have microstructures which seem to suggest that the rain-forming processes most frequently o... Abstract The Second Israeli Randomized Cloud Seeding Experiment was conducted during the six rainfall seasons November–April 1969–75. Its primary purpose was to examine the possibilities of enhancing rainfall in the catchment area of Lake Kinneret which serves as the principal reservoir of the Israel National Water Carrier. The present report constitutes the final statistical evaluation of this experiment. It has been preceded by a series of preliminary reports, some of which have dealt with specific subject areas. The study shows positive overall results, of 13 and 18% increases of precipitation under seeding in the total North and Catchment areas, respectively. The corresponding significance levels are 2.8 and 1.7%. These findings may be attributed to the following combination of reasons: 1) The clouds are cold (winter) continental cumuliform clouds, associated mostly with cold fronts and post-frontal bands, and have microstructures which seem to suggest that the rain-forming processes most frequently o...

This publication has 0 references indexed in Scilit: