00000nam 2200000zi 4500 9.949314 CaOODSP 20250320100613 m o d f cr bn||||||||| 250320e19480611onc o f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- En57-56/41-1948E-PDF Thomson, Andrew, author. Canadian data for international aerological days April 1-10, 1948 / Andrew Thomson, Controller. [Toronto] : Meteorological Division - Department of Transport - Canada, 11 Jun 48. 1 online resource (2 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier TEC ; 41 Caption title. Digitized edition from print [produced by Environment and Climate Change Canada]. "During the International Aerological Days Period, April 1-10, 1948 additional radiosonde and upper wind observations were made at most Canadian aerological stations, especially during the four day period April 3-6 when four radiosonde or rawinsonde ascents per day were made at every station where sufficient staff was available. In addition, through the excellent co-operation of the Canadian and transatlantic air lines, and the Royal Canadian Air Force, a vast amount of information regarding flight weather conditions throughout Canada and the North Atlantic was collected during the period"--Page [1]. Meteorological stations Canada. Winds Canada Observations. Transatlantic flights Observations. Stations météorologiques Canada. Vents Canada Observations. Vols transatlantiques Observations. Canada. Meteorological Division, issuing body. TEC ; 41. (CaOODSP)9.934253 PDF 94.6 KB https://publications.gc.ca/collections/collection_2025/eccc/en57/En57-56-41-1948-eng.pdf 672572425 CIR-1454