An analysis of some storm-period variables affecting stream sediment transport

Guy, Harold P.

doi:10.3133/pp462e

Cited by 65 publications

(59 citation statements)

References 10 publications

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“…Previous studies have noted that sediment-transport curves derived from instantaneous samples in lagging flows will have significant errors (Guy, 1964;Marcus, 1989). Direct computation of sediment discharge from coincident time plots of sediment concentration and stream discharge is the most accurate method available for these lagging flows.…”

Section: S T R E a M D Is C H A R G E In C U B Ic F E E T P E R S Ementioning

confidence: 99%

Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90. Data collection and analysis

Dinehart¹

1998

Professional Paper

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Section: S T R E a M D Is C H A R G E In C U B Ic F E E T P E R S Ementioning

confidence: 99%

Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90. Data collection and analysis

Dinehart¹

1998

Professional Paper

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“…The analysis of the wash load has proved difficult in that, unlike the bed and suspended loads, the concentration and total transport rate of the wash load do not always relate to the river-flow parameters (t~, u., discharge or flow power) (Einstein et a/., 1940: Colby, 1963: Guy, 1964. Instead, (7) the concentration depends more upon the geology of the river's drainage basin and upon the climate.…”

Section: Wash-load Transportmentioning

confidence: 99%

Modes of sediment transport in channelized water flows with ramifications to the erosion of the Martian outflow channels

Komar

1980

Icarus

150

141

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Depending on their grain sizes (settling velocities), sediments are transported in rivers as bed load, in suspension, or as wash load. The coarsest material rolls or bounces along the bottom as bed load whereas finer material is placed into suspension by the water turbulence. The finest sediments are transported as wash load. evenly distributed through the water depth and effectively moving at the same rate as the water. The criteria for quantitatively determining which grain-size ranges are being transported in terrestrial rivers as bed load, suspended load and wash load are applied to an analysis of sediment transport in the large Martian outflow channels, assuming their origin to have been from water flow. Of importance is the balance of the effects of the reduced Martian gravity on the water flow velocity versus the reduction in grain settling velocities. Analyses were performed using grain densities ranging from 2.90 g/cm ' (basalt) to 1.20 g/cm a (volcanic ash). The results show that the Martian flows could have transported cobbles in suspension and that nearly all sandsize material and finer would have been transported as wash load. Wash-load transport requires little or no net expenditure of the water-flow power, so the sands and finer could have been carried in nearly unlimited quantities. A comparison with terrestrial rivers indicates that concentrations as high as 60-70% by weight of wash-load sediment could have prevailed in the Martian flows, resulting in the very rapid erosion of the channels.

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“…Furthermore, Guy (1964), Walling & Webb (1982), Probst (1983) and Probst & Bazerbachi (1986) have correlated suspended sediment concentrations in the river with the volume of surface runoff rather than total river discharge. As shown by Fig.3, the contribution of surface runoff may be estimated by the separation of the different streamflow components of the hydrographs (Probst, 1985a;Probst & Bazerbachi, 1986).…”

Section: Relationship Between Suspended Sediment Concentration and Rimentioning

confidence: 99%

Dissolved and suspended matter transported by the Girou River (France): mechanical and chemical erosion rates in a calcareous molasse basin

Probst

1986

Hydrological Sciences Journal

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An analysis of some storm-period variables affecting stream sediment transport

Cited by 65 publications

References 10 publications

Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90. Data collection and analysis

Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90. Data collection and analysis

Modes of sediment transport in channelized water flows with ramifications to the erosion of the Martian outflow channels

Dissolved and suspended matter transported by the Girou River (France): mechanical and chemical erosion rates in a calcareous molasse basin

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