2.54 Tidal force is the main hydrodynamic force in estuaries. Shi et al. (Int. J. Numer. Meth. Fluids, 2003) reported the recorded tidal elevations

(in meters) at stations 16 and 18 at the North Passage of Changing Estuary (read from graphs).

The pairs of tidal elevations recorded from 2:00 PM till 12:00 noon are given in table below.

a Make parallel time series plots. Comment on similarities and differences in the patterns in observed tidal elevations at stations 16 and 18.

b Make a scatterplot of tidal elevations at station 18 versus those at station 16. Comment on the nature of relationship.
c Assess the strength of the estimated relation.

Transcribed Image Text:

St 16 St 18 St 16 St 18 St 16 St 18 St 16 St 18 0.4 0.6 0.8 0.5 0.1 0.7 0.5 0.1 1.2 1.0 0.4 0.1 0.5 1.0 0.0 -0.3 1.5 1.1 0.1 -0.3 1.0 1.1 -0.2 -0.7 1.5 1.1 -0.2-0.7 1.2 0.8 -0.4 -0.7 1.4 1.1 -0.4 -0.5 1.0 0.6 -0.5 -0.8 1.2 1.1 -0.2 0.4 0.8 0.4