This paper presents an overview of the recent geomorphological and hydraulic insights on
the dynamics of steep mountain streams, here defined as those channels with slope> 4–5 …

Data from laboratory flumes and natural streams show that the critical Shields stress for
initial sediment motion increases with channel slope, which indicates that particles of the …

Entrainment of river bed particles by turbulent flow is a core matter of study in river
hydrodynamics. It is of great interest to river engineers to evaluate the shear stress for …

Steep, rough channels occupy a large fraction of the total channel length in mountainous
regions. Most sediment mobilized on hillslopes must pass through these streams before …

Sediment transport in the Erlenbach, a small stream with step‐pool morphology in the
canton of Schwyz, Switzerland, has been monitored for more than 20 years. During this time …

Several decades of flume and field measurements have indicated that in rough turbulent
flows the critical Shields stress increases with increasing slope and associated decreasing …

The threshold of incipient bedload motion, expressed either as a critical force or as a critical
water discharge, is a key parameter in bedload transport prediction. Measuring the threshold …

Our capability to accurately predict at the local scale the morphological changes in a
mountain river affected by a severe flood is currently limited. Given the importance of …

We measured velocity and channel geometry in 10 reaches (bed gradient= 0.08–0.21) of a
predominantly step-pool channel, the Rio Cordon, Italy, over a range of discharges (3–80 …

To calculate bed load, engineers often use flow resistance equations that provide estimates
of bed shear stress. In these equations, on the basis of the estimate of the appropriate …