00000nam 2200000zi 4500 9.904609 CaOODSP 20221107180609 m o d f cr |n||||||||| 211103e198302##onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-on En36-539/59-1983E-PDF Beltaos, S., 1944- author. Ice freeze up and breakup in the Lower Thames River : 1980-81 observations / by S. Beltaos. [Burlington, Ont.] : Environment Canada, National Water Research Institute = Environnement Canada, Institut national de recherche sur les eaux, February 1983. 1 online resource (iii, 30 pages, 49 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier [Unpublished manuscript] Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 30). "The second year's ice observation on the lower Thames River are described and partially interpreted. Freeze-up commenced in December 1980 and breakup took place relatively early, during February 17-23, 1981. Extensive flooding occurred during the breakup period, owing to relatively large runoff and competent ice cover. Numerous ice jams formed within the study reach. Of these, the ones near the river mouth and near Louisville were the most severe. Interpretation of the season's data supported an existing theory of equilibrium jams and a recently developed conceptual model of breakup. A lack of theoretical background for non-equilibrium jams was noted and a need for studying conditions at ice jam toes was manifested"--Abstract. Includes abstracts in French. Ice on rivers, lakes, etc. Ontario Thames River. Glace sur les cours d'eau, lacs, etc. Ontario Thames, Rivière. Thames River (Ont.) Thames, Rivière (Ont.) National Water Research Institute (Canada), issuing body. Unpublished manuscript (National Water Research Institute (Canada)) (CaOODSP)9.901451 PDF 4.03 MB https://publications.gc.ca/collections/collection_2021/eccc/en36-539/En36-539-59-1983-eng.pdf