Hydraulic Roughness of Breakup Ice Jams
Publication: Journal of Hydraulic Engineering
Volume 127, Issue 8
Abstract
Lack of field data on the thickness and roughness of river ice jams inhibits reliable calibration of ice jam models and can result in erroneous evaluation of important physical parameters. Detailed thickness data that have been obtained on several ice jams by means of a remote profiling technique reveal a highly irregular underside. Statistical analysis points to a normal probability distribution of the irregularities and allows direct assessment of the absolute roughness of each jam. The latter varies linearly with the average jam thickness, at least to a thickness value of 3 m, and is shown to be consistent with previously reported roughness values deduced from purely hydraulic considerations. Using the present findings in conjunction with past data and modelling experience, simple equations are developed to compute composite-flow resistance characteristics in terms of jam thickness and flow depth.
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References
1.
Beltaos, S. ( 1979). “Flow resistance of fragmented ice covers (ice jams).” Proc., Can. Hydrology Symp., NRCC No. 17834, Vancouver, Canada, 93–126.
2.
Beltaos, S. ( 1988). “Configuration and properties of a breakup jam.” Can. J. Civ. Engrg., 15(4), 685–697.
3.
Beltaos, S., ed. ( 1995). River ice jams, Water Resources Publications, Highlands Ranch, Colo.
4.
Beltaos, S. ( 1996). “User's manual for the RIVJAM model.” Contribution No. 96-37, National Water Research Institute, Burlington, Canada.
5.
Beltaos, S., and Burrell, B. C. ( 1990). “Case study of a grounded jam: Restigouche R., N.B.” Proc., Northern Hydro. Symp., Saskatoon, Canada, 1–15 (published in 1991 as a National Hydrology Research Institute Symposium).
6.
Beltaos, S., Burrell, B. C., and Ismail, S. ( 1994). “Ice and sedimentation processes in the Saint John River, Canada.” Proc., IAHR Int. Ice Symp., 1, Delft, The Netherlands, 11–21.
7.
Beltaos, S., Ford, J. S., and Burrell, B. C. ( 1996). “Remote measurements of ice jam thickness profiles.” 13th IAHR Int. Symp. on Ice, Delft, The Netherlands, Vol. II, 577–584.
8.
Beltaos, S., and Moody, W. J. ( 1986). “Measurements of the configuration of a breakup jam.” Contribution No. 86-123, National Water Research Institute, Burlington, Canada.
9.
Beltaos, S., and Wong, J. (1986). “Downstream transition of river ice jams.”J. Hydr. Engr., ASCE, 112(2), 91–110.
10.
Calkins, D. J. ( 1978). “Physical measurements of five ice jams.” Water Resour. Res., 14(4), 693–695.
11.
Calkins, D. J. ( 1983). “Ice jams in shallow rivers with floodplain flow.” Can. J. Civ. Engrg., 10(3), 538–548.
12.
Ford, J. S., Beltaos, S., Moody, W. J., and Madsen, N. K. ( 1991). “Remote measurements of ice jam thickness.” Proc., 6th Workshop on River Ice, Canadian Committee on River Ice, CGU-HS, Ottawa, Canada, 269–296.
13.
Gerard, R., and Andres, D. ( 1982). “Hydraulic roughness and freeze-up accumulations: North Saskatchewan River through Edmonton.” Proc., Workshop on Hydraulics of Ice-Covered Rivers, Canadian Committee on River Ice, CGU-HS, Edmonton, Canada, 62–87.
14.
Healy, D., and Hicks, F. ( 1999). “An assessment of the applicability of steady flow ice jam profile models.” Proc., 10th Workshop on River Ice, J. C. Doering, ed., Winnipeg, Canada, 185–195.
15.
Henderson, F. M. ( 1966). Open channel flow, Macmillan, New York.
16.
Kellerhals, R., Neill, C. R., and Bray, D. I. ( 1972). “Hydraulic and geomorphic characteristics of rivers in Alberta.” River Engineering and Surface Hydrology Rep. 72-1, Research Council of Alberta, Edmonton, Canada.
17.
Limerinos, J. T. ( 1970). “Determination of the Manning coefficient from measured bed roughness in natural channels.” Water Supply Paper 1898-B, U.S. Geological Survey, Washington, D.C.
18.
Nezhikhovskiy, R. A. ( 1964). “Coefficients of roughness of bottom surface of slush-ice cover.” Soviet Hydrol., Am. Geoph. Union, Washington, 127–150.
19.
Uzuner, M. S., and Kennedy, J. F. (1976). “Theoretical model of river ice jams.”J. Hydr. Div., ASCE, 102(9), 1365–1383.
20.
Wuebben, J. L., and Stewart, D. M. ( 1978). “Physical measurement of ice jams—1976–77 field season.” Special Rep. 78-3, U.S. Army Corps of Engineers Cold Regions Research and Engineering Laboratory, Hanover, N.H.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 127 • Issue 8 • August 2001
Pages: 650 - 656
History
Received: Oct 2, 2000
Published online: Aug 1, 2001
Published in print: Aug 2001
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