04 Create a tides only experiment

Generate the tide harmonics for NEMO

1. Install pyBDY. First go to https://github.com/NOC-MSM/pyBDY and follow the instructions to install pyBDY (see: https://github.com/JMMP-Group/SEVERN-SWOT/wiki/04.-Make-tidal-boundary-conditions for alternative detailed instructions). Note, as of writing, the latest Master branch should work fine using vertical interpolation because it has been merged with the [127_interpolation_error_in_TandS] branch fix.

2. Get the files from the REPO

mkdir $YOUR_TIDES_DIR
cp $REPO/PYBDY/* $YOUR_TIDES_DIR

3. The notebook gen_bdy_mask.ipynb details how the boundary masks were created. The actual boundary mask files for the baltic and open ocean are also included.

4. See the two namelist files (namelist_AMM75_baltic_tide.bdy, namelist_AMM75_open_tide.bdy) and update the directory paths as required. All the input files are provided in the repo (other than the harmonics) but remember to link to the domain_cfg.nc and bathy_meter.nc files. FES2014 harmonics have been used and they are available on Jasmin. Possibly they are available on Archer2 as well.

5. pyBDY can be run using the two .slurm files as required

6. Might need to rename the forcing files that pyBDY created, so the notebook $REPO/PYBDY/rename_bdy_files.ipynb might be useful to quickly rename them

Run the experiment

1. Create a new experiment directory and copy over the namelist_cfg

cp -r $CDIR/EXP_unforced $CDIR/EXP_tides
cp $REPO/NAMELISTS/TIDE_ONLY/namelist_cfg $CDIR/EXP_tides/.

2. Move the boundary forcing into the correct directory

mkdir $CDIR/INPUTS
mkdir $CDIR/INPUTS/TIDES
mv <forcing_files> $CDIR/INPUTS/TIDES/.
ln -s $CDIR/INPUTS/TIDES $CDIR/EXP_tides/TIDES

3. run it