Figure 5. Time series of measured flow velocities and water depths. a,b,c,d) Time-continuous plots of horizontal velocity magnitudes (\(|\overrightarrow{v}|\)) as a function of instantaneous water depth (\(Y\)) for AD2CP-1 (seaward inflection point, panel a), AD2CP-2 (bend apex, panel b), ADCP (confluence with side tributary, panel c), and AD2CP-3 (landward inflection point, panel d). The horizontal velocity magnitude is computed as\(\ |\overrightarrow{v}|=\sqrt[2]{|{\overrightarrow{v_{E}}|}^{2}+|{\overrightarrow{v_{N}}|}^{2}}\), where \(\overrightarrow{v_{E}}\) and \(\overrightarrow{v_{N}}\) are the Eastward and Northward velocity components measured by the acoustic instruments, respectively. The horizontal, black-dashed line in each panel denotes water depth corresponding to the bankfull stage (\(Y\)=\(Y_{B}\)) for each measuring station. (e,f) Values of peak tidal velocity asymmetry (\(\rho_{v}\)) at different measuring stations are plotted against the high-tide water depth (\(Y_{H}\)) observed during each monitored tidal cycle. Panel e) shows \(\rho_{v}\) for below-bankfull tidal flows, whereas \(\rho_{v}\)values for above-bankfull flows are displayed in panel f). Data points represent the average value of \(\rho_{v}\) computed at different depths, with error bars denoting standard deviation. (g) Values of tidal duration asymmetry (\(\rho_{d}\)) at different measuring stations are plotted against the high-tide water depth (\(Y_{H}\)) observed during each monitored tidal cycle. Different symbols and colors in panels e,f, and g denote different monitoring stations according to the legend in the lower-right inset. Calculations of tidal asymmetries were carried out only when instruments were submerged and both velocity and depth data could effectively be recorded.