00000nam 2200000zi 4500 9.926081 CaOODSP 20230905112519 m o d f cr |n||||||||| 230811s1971 abcd ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-ab DR52-3/1-1971E-PDF Monaghan, J., author. A mathematical model for predicting vapour dosages on and downwind of contaminated areas of grassland (U) / by J. Monaghan and W.R. McPherson. Ralston, Alberta : Defence Research Establishment Suffield, [1971] 1 online resource (31, [21] pages) : charts text txt rdacontent computer c rdamedia online resource cr rdacarrier Suffield technical paper ; no. 386 "Project no. 20-20-32". Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (page 31). The problems of the evaporation of liquid sprayed on a rough natural surface which may absorb the sprayed material in both the liquid and vapour phases and the subsequent atmospheric diffusion of the vapour evolved, is discussed. A mathematical model for predicting vapour dosages downwind of contaminated areas of grassland is presented together with a description of numerical methods and the computer program employed to obtain solutions of the diffusion equations. Examples are given of calculations with the model from which approximate relations are deduced that can be used to develop simpler graphical methods of computation. Includes abstract in French. Vapors Computer simulation. Soil absorption and adsorption Computer simulation. Chemical weapons Environmental aspects. Vapeurs Simulation par ordinateur. Sols Absorption et adsorption Simulation par ordinateur. Armes chimiques Aspect de l'environnement. McPherson, W. R., author. Defence Research Establishment Suffield, issuing body. Suffield technical paper ; no. 386. (CaOODSP)9.926092 PDF 1.69 MB https://publications.gc.ca/collections/collection_2023/rddc-drdc/DR52-3-1-1971-eng.pdf DRES-TP-386 S.T.P. 386 STP 386