The 1st column is for time period (10-day) info, 2nd column for E&N velocity info, 3rd column for Salinity & Temperature info, and 4th column for oxygen saturation and pH info. The x-axis is date for the chosen 10-day time span and the y-axis is depth: 0-11m.
E/N Velocity time series plot: The channel’s alignment is along the 140-to-220 degree axis. Roughly, the NW flow (N: red, E: blue) is flood and the SE flow (N: blue, E: red) is Ebb. Red color is for higher and blue color is for lower values for the water properties. Note that each time period may have different min-max range.