Field Estimates of Hydraulic Resistance of Ice-Covered Rivers

Samuel Li

doi:10.4028/www.scientific.net/AMR.250-253.3880

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 250-253Field Estimates of Hydraulic Resistance of...

Field Estimates of Hydraulic Resistance of Ice-Covered Rivers

Abstract:

A large volume of velocity profiles measured from ice-covered rivers is used to estimate the composite Manning’s coefficient n_o associated with the ice and riverbed. Estimates are obtained using four methods, based on (I) depth-averaged and maximum velocities, (II) logarithmic velocity distributions fitted to field data, (III) energy slope combined with the logarithmic velocity distributions, and (IV) the Manning’s equation. Estimates of the composite coefficient range from 0.012 to 0.040. The coefficient can increase up to seven-fold through the winter. Method (II) has shown advantages. The energy slope appears to be between 25% and 50% of the water slope.

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Periodical:

Advanced Materials Research (Volumes 250-253)

Pages:

3880-3883

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.250-253.3880

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Online since:

May 2011

Authors:

Samuel Li

Keywords:

Ice-Covered River, Manning’s Roughness Coefficient, River Ice Roughness, Velocity Profiles

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References

[1] R. Ettema, Review of alluvial-channel responses to river ice, J. Cold Reg. Eng. 16 (2002) 191-217.

DOI: 10.1061/(asce)0887-381x(2002)16:4(191)

Google Scholar

[2] M.S. Uzuner, The composite roughness of ice covered channels, J. Hydraul. Res. 13 (1975) 79-102.

Google Scholar

[3] P.A. Larsen, Head losses caused by an ice-covered on open channels, J. Boston Soc. Civ. Eng. 56 (1969) 56-57.

Google Scholar

[4] D.J. Calkins, D.S. Deck, C.R. Martinson, Resistance coefficients from velocity profiles in ice-covered shallow streams, Can. J. Civ. Eng. 9 (1982) 236-247.

DOI: 10.1139/l82-026

Google Scholar

[5] H.A. Einstein, R.B. Banks, Fluid resistance of composite roughness Trans. Am. Geophys. Union 31(1951) 603-610.

Google Scholar