Atmospheric and Ocean Waves-572

Atmospheric response to different horizontal scale topography.

The effect of rotation for three different mountain scales.

For this exercise we'll be using the following datasets, which as before have 128 points in the zonal direction, 51 points in the meridional direction and 41 points in the vertical direction, with fields stored every 12 hours for a period of 15 days.

The Solutions are:

1. Calculate the vertical component of vorticity and horizontal divergence for the solutions of the three mountain scales. Provide some physical interpretation of the differences between these fields (both horizontal and vertical cross-sections) as a function of mountain scale.

2. What do the cross-mountain trajectories look like in the three experiments? Interpret the differences between the trajectories in terms of the vorticity and divergence fields calculated in Exercise 1.

3. Calculate the mountain drag for the 300km mountain and compare with your previous calculations for the lee-wave solution.

4. Compare and contrast the barotropic solutions found in:

which have the same characteristics as the datasets used above, however the barotropic solution was calculated with only 3 vertical levels and no stratification (N=0).

For the barotropic response you can chose any z, all the variables are constant in z, shading "topo" will show the mountain position.

If you're interested in performing a model integration for a project, please let me know and I will help you set the parameters to run the ZETA model.