00000nam 2200000zi 4500 9.936687 CaOODSP 20240628072635 m o d f cr bn||||||||| 240411s1968 onca obt f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc En57-57/682-1968E-PDF Jackson, A. W., author. The drought index chart as a fire weather forecast tool / by A.W. Jackson = Utilisation de la carte de l'indice de sécheresse pour la prévision du temps à incendie / par A.W. Jackson. Drought index as a fire weather forecast tool Utilisation de la carte de l'indice de sécheresse pour la prévision du temps à incendie Toronto, Ontario : Canada, Department of Transport, Meteorological Branch = Canada, Ministère des transports, Direction de la météorologie, 1968. 1 online resource (12 pages, 6 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier Technical memoranda, 0068-7804 ; TEC 682 ISSN of series supplied from ISSN Portal. "U.D.C. 551·577·38:634·0·43, 551·509·329"--Cover. "May 5, 1968"--Cover. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 12). "The determination of the drought index (in the U.S., the build-up index) for many weather stations is a routine part of fire weather analysis. Maintaining these values from day to day for a number of stations enables one to draw lines of equal drought index in order to gain a continuing picture of drought conditions. "Normal" drought index charts may be prepared and graphical subtraction of values on this chart from those on the current one gives a picture of the above-normal and below-normal drought areas. Graphical addition of conditions of humitity and wind to the drought picture may be done to obtain a chart of fire weather index from which fire danger may be deduced. The same procedure may be used to obtain a forecast chart of the index"--Abstract. Includes abstracts in English and French. Droughts British Columbia Measurement. Fire weather British Columbia Forecasting. Sécheresses Colombie-Britannique Mesure. Temps de feu de forêt Colombie-Britannique Prévision. Technical reports lcgft Rapports techniques rvmgf Canada. Meteorological Branch, issuing body. Technical memoranda (Canada. Meteorological Branch) TEC 682. (CaOODSP)9.934428 PDF 577 KB https://publications.gc.ca/collections/collection_2024/eccc/en57/En57-57-682-1968-eng.pdf