Before revision: River regime can describe one of two characteristics of a reach of an alluvial river: The variability in its discharge throughout the course of a year in response to precipitation, temperature, evapotranspiration , and drainage basin characteristics (Beckinsale, 1969) A series of characteristic power-law relationships between discharge and width, depth, and slope The latter is described by the fact that the discharge through a river of an approximate rectangular cross-section must, through conservation of mass, equal where is the volumetric discharge, is the mean flow velocity, is the channel width (breadth) and is the channel depth.
After revision: River regime can describe one of two characteristics of a reach of an alluvial river: The variability in its discharge throughout the course of a year in response to precipitation temperature, evapotranspiration , and drainage basin characteristics (Beckinsale, 1969) A series of characteristic power-law relationships between discharge and width, depth, and slope The latter is described by the fact that the discharge through a river of an approximate rectangular cross-section must, through conservation of mass, equal where is the volumetric discharge, is the mean flow velocity, is the channel width (breadth) and is the channel depth.