5.5 Exercise 22: Exchange Flow Through a Strait
137
Fig. 5.9 Exercise 21. Snapshot of the distributions of Eulerian tracer (shading and contours) and
the flow field (arrows). Flow vectors are interpolated over 2 × 2 grid cells
interaction with the irregular coastline of Sakhalin and bathymetric variations. Some
meanders develop into isolated eddies of about 30 km in diameter. All eddies formed
are cyclonic features of anti-clockwise rotation. This sign of relative vorticity and
the spatial scale of mesoscale eddies are in agreement with the ice-spiral pattern
shown in Fig. 5.7. Eddies are not stationary features. Instead of this, eddies are
rapidly carried away by the simulated Soya Warm Current.
5.4.6 Bathymetry Creation
The folder “Miscellaneous/Bathymetry for Exercise 21” on the book’s ftp site contains the FORTRAN bathymetry creator, named “BathCreator.f95”, needed for this
exercise. The result is written to a file named “topo.dat” that is requires as input
file for the FORTRAN simulation code. Included is also the SciLab script, called
“Bath.sce” that creates Fig. 5.7.
5.4.7 Additional Exercises for the Reader
Repeat this exercise with the same coastline configuration but uniform water depth
of 100 m. Does this configuration also support eddy formation? Include bottom friction and explore variations in the dynamic response.
5.5 Exercise 22: Exchange Flow Through a Strait
5.5.1 Aim
The aim of this exercise is to study density-driven exchange flows through a strait
that connects ocean basins containing water of different densities.
137
Fig. 5.9 Exercise 21. Snapshot of the distributions of Eulerian tracer (shading and contours) and
the flow field (arrows). Flow vectors are interpolated over 2 × 2 grid cells
interaction with the irregular coastline of Sakhalin and bathymetric variations. Some
meanders develop into isolated eddies of about 30 km in diameter. All eddies formed
are cyclonic features of anti-clockwise rotation. This sign of relative vorticity and
the spatial scale of mesoscale eddies are in agreement with the ice-spiral pattern
shown in Fig. 5.7. Eddies are not stationary features. Instead of this, eddies are
rapidly carried away by the simulated Soya Warm Current.
5.4.6 Bathymetry Creation
The folder “Miscellaneous/Bathymetry for Exercise 21” on the book’s ftp site contains the FORTRAN bathymetry creator, named “BathCreator.f95”, needed for this
exercise. The result is written to a file named “topo.dat” that is requires as input
file for the FORTRAN simulation code. Included is also the SciLab script, called
“Bath.sce” that creates Fig. 5.7.
5.4.7 Additional Exercises for the Reader
Repeat this exercise with the same coastline configuration but uniform water depth
of 100 m. Does this configuration also support eddy formation? Include bottom friction and explore variations in the dynamic response.
5.5 Exercise 22: Exchange Flow Through a Strait
5.5.1 Aim
The aim of this exercise is to study density-driven exchange flows through a strait
that connects ocean basins containing water of different densities.