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2002 | 05 | 2 |

Tytuł artykułu

The velocity-reversal hypothesis-implications for a mountainous stream bed morphology

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
This paper presents the results of a study of reversal hypothesis phenomena observed within riffles and pool sequences on a 1.1 km long reach of the Skawica-Jalowiecki Stream. The Skawica-Jalowiecki is a flashy mountain stream with an alluvial bed that transports sediment during frequent floods. The study reach is situated just below the border of the Babia-Gora National Park in Polish Carpathians, which provides a good, undisturbed research site. It was found that Q=4.27 m3s-1, Q=2.43 m3s-1 velocities and shear stresses in pools were highest over riffles during spring floods. It was also observed that unit stream power above the pools was bigger than that found in the riffles.

Wydawca

-

Rocznik

Tom

05

Numer

2

Opis fizyczny

http://www.ejpau.media.pl/series/volume5/issue2/environment/art-01.html

Twórcy

  • Agricultural University of Krakow, Al.Mickiewicza 24-28, 30-059 Krakow, Poland

Bibliografia

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  • Carling, P. A. & Wood, N. 1994. Simulation of flow over pool-riffle topography: a consideration of the velocity reversal hypothesis. Earth Surface Processes and Landforms, 19, 320-332.
  • Church M.A., McLean J.F. & Wolcot J.F., 1987. River Bed Gravels: Sampling and Analysis. In Sediment Transport in Gravel-bed Rivers, Edited by Throne C.R. et al., John Wiley and Sons Ltd, London, 43-87.
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  • Henderson, F. M. 1966. Open channel flow. Mac Millan Publ., New York, Collier Publ., London.
  • Jarrett, R. D. 1991. Wading measurements of vertical velocity profiles. Geomorphology, 4, 243-247.
  • Keller, E. A. 1971. Arial sorting of bedload material, the hypothesis of velocity reversal, Geol. Soc. Am. Bull., 82, 279-280.
  • Keller, E. A. & Melhorn, W. N. 1978. Form and fluvial process in alluvial stream channels. Purdue Univ. Water Resources Research Center Tech. Rept., 47, 124pp.
  • Michalik A. 1990. Badania intensywności transportu rumowiska wleczonego w rzekach karpackich [Bed load discharge investigations in Carpathians rivers]. Zesz. Nauk. AR Kraków seria Rozpr. Hab., 138, pp.115 [in Polish].
  • Miller, J. P. 1958. High mountain streams, effects of geology on channel characteristics and bed material.
  • Milne, J.A. 1982. Bed-material size and the riffle-pool sequence. Sedimentology. 29, 267-278.
  • Radecki-Pawlik, A. 2000. Point bars development and sediment structure in the Skawica Creek in Polish Carpathians. In: Proc. of 10th International Conference on Transport and Sedimentation of Solid Particles (T&S), Wroclaw, Poland, 113-120.
  • Radecki-Pawlik A. 2002. Wybrane zagadnienia kształtowania się form korytowych potoku górskiego i form dennych rzeki nizinnej [Some aspects of the formation of mountain stream bars and lowland river dunes]. Zesz. Nauk. AR w Krakowie, seria Rozprawy, nr. 281 [in Polish].
  • Richards, K. S. 1976. The morphology of riffle-pool sequences. Earth Surf. Proc., 1, 71-88.
  • Sidle, R. C. 1988. Bed load transport regime of small forest stream. Wat. Resour. Res., 24, 207-218
  • Simons, D.B. & Richardson, E. V., 1963. Forms of bed roughness in alluvial channels. Trans. Am. Soc. Civ. Eng., 128, 284-302.
  • Teisseyre, A. K. 1984. The River Bobr in the Blazkowa study reach (central Sudetes): a study in fluvial process and fluvial sedimentology, Geologia Sudetica, vol.XIX, 1, 8-65.

Typ dokumentu

Bibliografia

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