00000nam 2200000zi 4500 9.878975 CaOODSP 20241203113652 m o d f cr bn||||||||| 190906t19761976bccab ob f000 0 eng d 0662003527 (softcover) CaOODSP eng rda CaOODSP eng eng fre n-cn-bc En36-508/46E-PDF En36-502/64 Leith, R. M., author. Streamflow regionalization in British Columbia, no. 2 : regression of mean annual flows on physiographic parameters / R.M. Leith. Regression of mean annual flows on physiographic parameters Vancouver, British Columbia : Inland Waters Directorate, Pacific Region, Water Resources Branch, 1976. ©1976 1 online resource (vi, 21 pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Report series ; no. 46 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 13). "Mean annual flows have been regressed on physiographic parameters for 62 hydrometric stations in British Columbia. The equation for unit mean annual flow, UMAF, UMAF = 10.4 + 0.0319 NPOSI - 0.172 x 10⁻² ELEV - 0.131 x 10⁻² DSNW - 0.0567 RAFOR + 0.909 RASWP + 0.758 x 10⁻⁴ SEW explained 61% of the total variation and had a standard error of estimate of 1.71 cfs/sq.mi. This equation was developed by backward elimination of variables and was tested by examination of residuals, by geographic plot, by runs test and by tests of normalcy. In the process of building the equation, subsamples of the 62 stations were taken and regression equations developed. This allowed the identification of important parameters, other than those which appear in the above equation. For example, Barrier Height to North, BHN, appeared in five of the seven intermediate equations"--Abstract, page v. Issued also in print format. Includes abstracts in English and French. Canada. Environment Canada. Canada. Inland Waters Directorate. Pacific Region. Water Resources Branch. Report series (Canada. Inland Waters Directorate) no. 46. (CaOODSP)9.862410 PDF 888 KB https://publications.gc.ca/collections/collection_2019/eccc/en36-508/En36-508-46-eng.pdf