4.1.2. Estimation of Barotropic Current Using Numerical Modelling

Numerical modeling can also be used to infer the tidal signal [27]. Here we use the Tidal Model Driver (TMD) toolbox to predict the barotropic tidal constituent height and amplitude [28].

At 00:00 UTC on 22 May, the prediction of westward barotropic tidal velocity (u) was 6.36 cm/s, and the southward velocity (v) was 3.12 cm/s, which are similar to the results mentioned above.

In conclusion, the barotropic tidal velocity at the site where the ISW was observed likely has little influence on the current field.
