00000nam 2200000zi 4500 9.879904 CaOODSP 20241203113652 m go d f cr |n||||||||| 190930s1972 oncb #o f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- En57-23/5-72E-PDF Hemmerick, G. M., author. Frost data, 1941-1970 / by G.M. Hemmerick and G.R. Kendall. Downsview, Ontario : Environment Canada, Atmospheric Environment = Environnement Canada, Environnement atmosphérique, 1972. 1 online resource (19, [2] pages) : maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier CLI ; 5-72 Digitized edition from print [produced by Environment and Climate Change Canada]. "The frost data summarized in this publication are based on minimum temperatures as observed in a standard louvered thermometer screen at a height of about 4 feet above ground, using an alcohol-in-glass self registering minimum thermometer"--page 1. gccst Weather Kendall, G. R., author. Canada. Environment Canada. Canada. Atmospheric Environment Service. CLI (series : Online) 5-72. (CaOODSP)9.826234 PDF 55.30 MB https://publications.gc.ca/collections/collection_2019/eccc/en57-23/En57-23-5-72-eng.pdf