Summary
Description is made of a non-randomized experiment which was carried out during winter 1968/9 with the purpose of increasing visibilities in a vast area of the Eastern Po Valley. 6.75 tons of 2 different types of material which generated, with 80% yields, condensation and ice-forming nuclei of 1.5 micron average diameter were aerosolized in daily batches of about 190 kg, three times per week, for three months. The seeding was carried out, on pre-determined days and independently of the atmospheric conditions, from the top of a hill 150 meters above the plain. Substantial and significant increases of average visibilities were obtained in a large area downwind from the operation site.
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Montefinale, A.C., Petriconi, G.L., Gori, E.G. et al. Preliminary tests on large-scale suppression of warm fog by means of giant monodisperse particulates. Part II. An extensive systematic experiment in the Ghedi-Monte Orfano area. PAGEOPH 83, 173–181 (1970). https://doi.org/10.1007/BF00875110
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DOI: https://doi.org/10.1007/BF00875110