Variability of bed mobility in natural, gravel-bed channels and adjustments to sediment load at local and reach scales

Thomas E. Lisle; Jonathan M. Nelson; John Pitlick; Mary Ann Madej; Brent L. Barkett

Treesearch

Variability of bed mobility in natural, gravel-bed channels and adjustments to sediment load at local and reach scales

Informally Refereed

Authors:

Thomas E. Lisle, Jonathan M. Nelson, John Pitlick, Mary Ann Madej, Brent L. Barkett

Year:

2000

Type:

Miscellaneous Publication

Station:

Pacific Southwest Research Station

Source:

Water Resources Research 36(12): 3743-3755.

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Abstract

Abstract - Local variations in boundary shear stress acting on bed-surface particles control patterns of bed load transport and channel evolution during varying stream discharges. At the reach scale a channel adjusts to imposed water and sediment supply through mutual interactions among channel form, local grain size, and local flow dynamics that govern bed mobility.

Keywords

PSW4351, bed mobility, boundary shear stress, bed load transport, channel evolution

Citation

Lisle, Thomas E.; Nelson, Jonathan M.; Pitlick, John; Madej, Mary Ann; Barkett, Brent L. 2000. Variability of bed mobility in natural, gravel-bed channels and adjustments to sediment load at local and reach scales. Water Resources Research 36(12): 3743-3755.