Channel Water Balance

Water storage in the reach at the end of the time step is calculated:

$V_{stored,2}=V_{stored,1}+V_{in}-V_{out}-tloss-E_{ch}+div+V_{bnk}$ 7:1.8.1

where $V_{stored,2}$ is the volume of water in the reach at the end of the time step (m$^3$ H$_2$O), $V_{stored,1}$ is the volume of water in the reach at the beginning of the time step (m$^3$ H$_2$O), $V_{in}$ is the volume of water flowing into the reach during the time step (m$^3$ H$_2$O), $V_{out}$ is the volume of water flowing out of the reach during the time step (m$^3$ H$_2$O), $tloss$ is the volume of water lost from the reach via transmission through the bed (m$^3$ H$_2$O),$E_{ch}$ is the evaporation from the reach for the day (m$^3$ H$_2$O), $div$ is the volume of water added or removed from the reach for the day through diversions (m$^3$ H$_2$O), and $V_{bnk}$ is the volume of water added to the reach via return flow from bank storage (m$^3$ H$_2$O).