00000nam 2200000za 4500 9.862612 CaOODSP 20241203113644 cr ||||||||||| 181002s1975 oncd #ob f000 0 eng d CaOODSP eng eng fre n-cn-on En36-503/91E-PDF Maguire, R. J. (R. James) Light transmission through snow and ice [electronic resource] / R. James Maguire. Burlington, Ontario : Environment Canada, Inland Waters Directorate, CCIW Branch, 1975. v, 4 p. : graphs Technical bulletin - Inland Waters Directorate ; no. 91 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The transmission of photosynthetically active radiation (400-700 nm) by snow and ice has been examined and extinction coefficients have been determined for clear ice, cloudy ice, soft new snow and hard powder snow. These values have been used to predict, to a satisfactory degree, the transmission of light by snow-ice systems of varying composition and thickness"--Abstract, p. v. Includes abstract in French. gccst Snow gccst Ice gccst Lighting Canada. Environment Canada. Canada Centre for Inland Waters. Canada. Inland Waters and Lands Directorate. Technical bulletin (Canada. Inland Waters Directorate) no. 91. (CaOODSP)9.861123 PDF 764 KB https://publications.gc.ca/collections/collection_2018/eccc/en36-503/En36-503-91-eng.pdf