00000nam 2200000zi 4500 9.870614 CaOODSP 20241203113647 m o d f cr nn||||||||| 190326e198710##oncad ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/87-162E-PDF Beltaos, S., 1944- author. Current North American trends in river ice research / by S. Beltaos. Burlington, Ontario : Rivers Research Branch, National Water Research Institute, Canada Centre for Inland Waters, October 1987. 1 online resource (21, [7] pages) : illustrations, charts text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 87-162 Cover title. "Prepared for Nordic River Ice Research Meeting November 2-4, 1987, Helsinki, Finland"--Cover. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 18-21). "A brief review of river ice processes and associated understanding is presented, to serve as background for the research trends described next. Two types of trends are identified, trends in approach and trends in specific topics being studied; The latter category includes such problems as the dynamic evolution of frazil ice crystals; two-dimensionality of frazil accumulations; fracture hydrodynamic of the winter ice Cover and breakup; hydro-thermal aspects of ice jams; and the configuration, of breakup jams near the toe (or downstream end). Important questions that are thought to require more attention, e.g. ice effects on aquatic life, are discussed briefly. Approach-type trends include the use of sophisticated computer models that enable analysis of complex and interdependent processes; efforts to simulate and study hydro-thermal and hydro-structural phenomena in the laboratory; and improvements in remote sensing instrumentation to measure key parameters in the field where access is often unsafe and conventional methods are laborious"--Abstract. Includes management perspective and abstract in French. gccst Water quality River ice Canada. Environment Canada. National Water Research Institute (Canada). Rivers Research Branch. Canada Centre for Inland Waters. NWRI contribution ; 87-162. (CaOODSP)9.844121 PDF 2.24 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-87-162-eng.pdf