Doing sensitivity tests on MPAS

Here's how to derive new experiment group(s) based on a complete control group experiment in MPAS.

0. Even before the control group experiments, prepare a directory with a skeleton model. This could probably include:

   • The model
   • WRF physics
   • Grid file and static file.
   • Possibly scripts for conveniently submitting as a job
   • You may want to delete the namelists, but keep the streams and the streamlists.
1. Copy the skeleton directory over. It’s probably a good idea to use cp -L (dereferencing the links) because with this you get the actual model binaries copied. So it should be faster if you’re running multiple experiments at the same time. (*not benchmarked)
2. Copy over the namelist of the control group. Make appropriate edits.
3. Link/Copy over the init of the control group.
4. Link/Copy over the sfc_update of the control group
5. Link/Copy over the LBCs of the control group.

Basically, what you would do with init_atmosphere mode 7, 8 and 9. You don't need to use WPS on the downloaded data again.

6. Copy any other input streams (e.g. FDDA).