Cloud seeding in Necaxa Watershed

Jorge Estrada Betancourt


Cloud seeding experiments in Necaxa Watershed, in Mexico, were initiated in 1949, and have been carried out long enough to produce statistically significant data. Those meteorological factors which influence the diffusion of Agl smoke in seeding days have been studied.  The results were evaluated by a non-parametric statistics technique and it is inferred that a redistribution of the precipitation was probably caused by an overseeding.  Statistically it is also inferred that there was a persistence of AgI smoke on days close to those on which cloud seeding operations were conducted.


Weather Modification Research

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