00000nam 2200000zi 4500 9.957130 CaOODSP 20251105155531 m o d f cr bn||||||||| 251105e19651201onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-qu En57-56/588-1965E-PDF Holland, J. D, author. Design and operation - Precipitation Physics Project / by J.D. Holland and C.L. Crozier. Programme de physique des précipitations : deuxième rapport, objet et mise en oeuvre Toronto, Ontario : Department of Transport, Meteorological Branch, Dec. 1, 1965. 1 online resource (47 pages, 2 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier TEC ; 588 Digitized edition from print [produced by Environment and Climate Change Canada]. "CIR 4338." Includes bibliographical references (page 46-47). "During the summers 1959 to 1963, a project of Cloud seeding combined with physical studies of precipitation mechanisms was operated in western Quebec. Randomized Cloud seeding of synoptic scale weather systems with silver iodide using an all-weather aircraft and a cross-over technique with two separated test areas was conducted for a test of the effect of seeding this type of storm. Studies of precipitation mechanisms were advanced by the collection of many observations of liquid water content, drop-size distribution and other parameters in the air and by radar observation, ice nuclei counting, rainfall measurement, lightning counting and other measurements on the ground. The paper discusses the aims, experimental design and instrumentation of the project and describes the manner in which these plans were carried out during the five years of operation. Changes and improvements made in the project as a result of accumulated experience are also discussed"--Abstract. Text in English; abstract in English and French. Rain-making Quebec (Province) Cloud physics. Pluie artificielle Québec (Province) Nuages Physique. Canada. Meteorological Branch, issuing body. TEC ; 588. (CaOODSP)9.934253 PDF 2815 KB https://publications.gc.ca/collections/collection_2025/eccc/en57/En57-56-588-1965-eng.pdf U.D.C. :551.509.6 :551.574.1