bankfull stage

bankfull stage

[¦baŋk ¦fu̇l ‚stāj]
(hydrology)
The flow stage of a river in which the stream completely fills its channel and the elevation of the water surface coincides with the bank margins.
References in periodicals archive ?
(10.) Butzer and Freeman write that under normal conditions the Nile inundation reaches bankfull stage in the southern Nile by mid-August and in the northern Nile (where the Israelites lived) 4-6 weeks later, which puts its highest level around the beginning of October.
When the water level is even with the banks, the river is at bankfull stage. And when the water level exceeds the banks or overflows, the river is at a flood stage.
As before, earlier and later measurements of the cross-section and the upstream and downstream cross-sectional profiles were used for reference to determine the bankfull stage [32].
The particle sized based estimate of Manning's roughness value (n = 0.023) at bankfull stage was consistent with a roughness value derived from measured flow velocities at bankfull stage (n = 0.022).
Bankfull stage corresponds to the discharge at which overbank flow is incipient.
Participants will learn about stream processes related to channel formation, field assessment, techniques to identify bankfull stage, the Rosgen classification system for natural streams, channel evolution, and restoration options for impaired streams.