Earth Sciences

Earth Sciences Wiki

User Tools

Site Tools


tools:ocean_nudging

ATTENTION OBSOLETE PAGE

Preliminary step

First of all, please check that the reference files for your nudged experiments are available on the platform you would like to run at the location : HSM_DIR/nudging/REFERENCE/CONFIG/fcMEMB/ where REFERENCE is the name of the ocean reanalysis you would like to nudge to (fa9p / s4 / glorys2v1 = 3 options available currently ), CONFIG is the ocean model resolution (ORCA1L42 / ORCA1L46 / ORCA025L46 / ORCA025L75) and MEMB is the member.

If you would like to prepare new reference files, their naming should follow the convention : REFERENCE_fcMEMB_YYYYMM_grid_T.nc.gz = one file containing 3-dimensional monthly mean temperature and salinity.

Progress with the validation

NEMO-only experiments

In the NEMO templates the ocean nudging is available through a simple activation of the OCEAN_NUDGING = TRUE flag in your expdef_EXPID.conf file and the choice of the ocean reanalysis you would like your experiment to : OCEAN_NUDDATA = fa9p / s4 / glorys2v1 ( 3 options available currently )

EC-Earth 3 experiments

Please use the templates available in the branch named ocean_nudging together with the model source code and namelists available in the branch named develop-v3.0.1_OceNudg. After the model has been compiled remotely on the HPC, check that the key_tradmp, key_dtatem, and key_dtasal have been activated (the keys must be listed in SCRATCH_DIR/EXPID/model/sources/sources/nemo-3.3.1/CONFIG/YOURCONFIG/cpp_YOURCONFIG.fcm). Also, check that you have in your working directory, the dist.coast.nc file for the correct configuration that you can find here: /home/vguemas/NudgingEcEarth3/distance_ORCA1L46.nc, /home/vguemas/NudgingEcEarth3/distance_ORCA025L46.nc, /home/vguemas/NudgingEcEarth3/distance_ORCA025L75.nc (you can use md5sum to check that you have the correct file). Finally, similarly to NEMO-only experiments, you need to set the OCEAN_NUDGING = TRUE and choose an option for OCEAN_NUDDATA.

Contact

If you have any question, please feel free to contact virginie.guemas@ic3.cat

tools/ocean_nudging.txt · Last modified: 2018/04/24 13:55 by vsicardi