The Hydraulic Geometry of Stream Channels and Some ...

moves upstream. Control. The "control" of a stream-gaging station refers to the nature of the channel downstream from the meas­ uring section which determines the stage-discharge relation. Current meter. An instrument for measuring water speed; consists of cups which are rotated by the flowing water; rate of rotation is a function of water ...

  Master, Upstream, Channel, Downstream, Channel downstream