2.55 Tidal force is the main hydrodynamic force in estuaries. Shi et al. (Int. J. Numer. Meth. Fluids, 2003) reported the recorded six different measurements of the relative depth of water (y) and tidal velocities (x) at stations 16 and 18 at 9:00 PM on August 12, 1978. The data reported

(read from the graph) are listed in table below:

a Construct scatterplots of depth versus velocity for stations 16 and 18 separately and then together.
b Comment on the nature of the relationship between depth and velocity. Does it appear to be linear?
c Fit an appropriate model to describe relationship between depth and velocity.

Transcribed Image Text:

Station 16 Station 18 Relative Relative Velocity Water Depth Velocity Water Depth 0.6 0.02 0.55 0.02 0.88 0.2 0.85 0.2 1.0 0.6 0.95 0.8 1.1 0.4 1.05 0.4 1.15 0.8 1.05 1.0 1.2 1.0 1.2 0.6