000	00000nam 2200000za 4500
001	9.862030
003	CaOODSP
005	20221107160917
007	cr |||||||||||
008	180917s1970    onca    o    f000 0 eng d
040	|aCaOODSP|beng
043	|an-cn---
086	1 |aEn36-515/29E-PDF
100	1 |aStrilaeff, P. W.
245	10|aMeasurement of discharge under ice cover |h[electronic resource] / |cP.W. Strilaeff and J.H. Wedel.
260	|aOttawa : |bInland Waters Branch, Dept. of Energy, Mines and Resources, |c1970.
300	|av, 14 p. : |bill.
490	1 |aTechnical bulletin ; |vno. 29
500	|aDigitized edition from print [produced by Environment and Climate Change Canada].
520	3 |a"Many difficulties are encountered in the measurement of discharge under ice cover, particularly in the operation of hydrologic data-gathering networks located in Arctic and Sub-Arctic regions. Difficulties result from extreme ice thicknesses, double thicknesses of ice, large depths of slush ice, coincidence of spring flows with ice breakup, freeze-up of gauging equipment in sub-zero temperatures, etc. Some of these difficulties are discussed, and procedures used in the operation of networks in northern areas of Canada are outlined. A possible technique for the estimation of river discharge using a single velocity in a cross-section is briefly described, and a comparison of accuracy between discharges derived using this technique and measured discharges using standard methods is demonstrated"--Abstract, p. v.
693	4|aStream measurements
693	4|aIce on rivers, lakes, etc.
693	4|aNorthern Canada
700	1 |aWedel, J. H.
710	1 |aCanada. |bInland Waters Branch.
710	1 |aCanada. |bEnvironment and Climate Change Canada.
830	#0|aTechnical bulletin (Canada. Inland Waters Branch)|vno. 29.|w(CaOODSP)9.861115
856	40|qPDF|s1.21 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En36-515-29-eng.pdf