00000nam 2200000zi 4500 9.946224 CaOODSP 20241217104958 m o d f cr |n||||||||| 241217s1976 oncd ob f000 0 eng d CaOODSP eng rda CaOODSP En57-65/76-2E-PDF Kerman, B. R. ‏ (Bryan R.) author. Application of acoustic sounding to estimating diffusion in an atmospheric boundary layer / Bryan R. Kerman. Downsview, [Ont.] : Boundary Layer Research Division, Air Quality and Inter-Environmental Research Branch, [1976] 1 online resource (15 pages, 14 unnumbered pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier Report ARQL ; 76/2 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 14-15). "An acoustic sounder system can be configured to provide estimates of the vertical profile of velocity and the dissipation rates of kinetic and potential energy. A method based on the concepts of boundary-layer similarity theory is outlined by which the characteristic velocity in a freely convective boundary layer is deduced from the inversion height and a combination of any two of the mean wind in the layer, the dissipation rate of turbulent kinetic energy, and that of turbulent potential energy near the inversion. These values, in conjunction with the mean velocity, are used to establish the normalized heights, downwind and cross-wind distances, and cross-wind integrated concentrations. The normalized lateral and vertical standard deviations are then deduced from empirically established laboratory relationships for nonbuoyant particulates. Preliminary analysis indicates a similar methodology may be applicable to the stable boundary layer"--Abstract. Echo sounding. Air Pollution Measurement. Atmospheric diffusion Measurement. Boundary layer (Meteorology) Mathematical models. Sondage par ultrasons. Polluants atmosphériques Mesure. Diffusion atmosphérique Mesure. Couche limite (Météorologie) Modèles mathématiques. Canada. Boundary Layer Research Division, issuing body. Canada. Air Quality and Inter-Environmental Research Branch, issuing body. Canada. Atmospheric Environment Service, issuing body. Report ARQL ; 76/2. (CaOODSP)9.941919 PDF 907 KB https://publications.gc.ca/collections/collection_2024/eccc/en57/En57-65-76-2-eng.pdf