00000nam 2200000zi 4500 9.949867 CaOODSP 20250408083227 m o d f cr bn||||||||| 250408e19520506onc ob f000 0 eng d CaOODSP eng rda CaOODSP En57-56/114-1952E-PDF Clodman, J.‏ (Joseph), 1917- author. The current status of the theory of pressure change with particular reference to the steering of surface lows / by Joseph Clodman. [Toronto] : Meteorological Division - Department of Transport - Canada, 6 May 52. 1 online resource (18 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier TEC ; 114 Caption title. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 17-18). "For some time practicing forecasters have been utilizing upper air flow as an indication of the motion of surface pressure centres. Lately there have been some doubts cast on this technique both on an empirical and a theoretical basis. Although there may be some validity to these criticisms, the forecasters who have made judicious use of this method will hesitate to discard it because of its proven value, particularly where other indications of motion are obscure or non-existent"--Introduction, page 2. Lows (Meteorology) Mathematical models. Forecasting Mathematical models. Forecasting Methodology. Dépressions barométriques Modèles mathématiques. Prévision Modèles mathématiques. Prévision Méthodologie. Canada. Meteorological Division, issuing body. TEC ; 114. (CaOODSP)9.934253 PDF 746 KB https://publications.gc.ca/collections/collection_2025/eccc/en57/En57-56-114-1952-eng.pdf 672572425 CIR-2101