00000nam 2200000zi 4500 9.938464 CaOODSP 20240628072857 m o d f cr bn||||||||| 240522s1968 oncab obt f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cnp-- x6x6 En57-57/667-1968E-PDF Kagawa, N. H., author. An evaluation of Brunt's cooling formula for minimum temperature prediction at five prairie locations / by N.H. Kagawa = Évaluation de la formule de refroidissement de Brunt en vue de la prédiction de la température minimale à cinq endroits des praities / par N.H. Kagawa. Évaluation de la formule de refroidissement de Brunt en vue de la prédiction de la température minimale à cinq endroits des praities Toronto, Ontario : Canada, Department of Transport, Meteorological Branch = Canada, Ministère des transports, Direction de la météorologie, 1968. 1 online resource (20 pages, 2 unnumbered pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Technical memoranda, 0068-7804 ; TEC 667 ISSN of series supplied from ISSN Portal. "U.D.C. 551·509·323"--Cover. "January 26, 1968"--Cover. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 12). "In this study, Brunt's equation for predicting the decrease in temperature with time after sunset is applied to the short-range prediction of minimum temperatures at five locations in Western Canada. These locations are Edmonton, Calgary, Saskatoon, Regina and Winnipeg. In order to apply Brunt's method, it was initially necessary to evaluate the product of the soil denisity, specific heat and the square root of the coefficient of termal conductivity. This was done empirically. Minimum temperature predictions were then made using data for a two month period at each of the five locations. In performing these predictions, nights during which temperature advection occurred were excluded from the test. However, cloud cover was taken into account using a scheme suggested by Reuter. Mean absolute errors between predicted and observed minimum temperatures varied from 2.3 degrees at Edmonton and Regina to 3.0 degrees at Calgary and the R.M.S. deviations ranged from 2.9 degrees at Regina to 4.0 degrees at Calgary"--Abstract. Includes abstracts in English and French. Atmospheric temperature Prairie Provinces Forecasting Mathematical models Evaluation. Température atmosphérique Provinces des Prairies Prévision Modèles mathématiques Évaluation. Technical reports lcgft Rapports techniques rvmgf Canada. Meteorological Branch, issuing body. Technical memoranda (Canada. Meteorological Branch) TEC 667. (CaOODSP)9.934428 PDF 739 KB https://publications.gc.ca/collections/collection_2024/eccc/en57/En57-57-667-1968-eng.pdf