Using the SST data to run the MPAS-A model

[pouwereou Nimon]

Hi everyone,
I would like to run the MPAS-A model at variable resolution and have already created the initial data using GFS data. Is it compulsory to use static SST data to update the model? I ask because I think the GFS data already contains the SST variable. If the model needs to be updated with SST data, which one would you advise? The SST data (NOAA OISST v2.1) I have is in NetCDF format and I don't know how to obtain the intermediate data from NetCDF files. Thanks for the help.

Pouwereou

 

[Ming Chen]

Hi Pouwereou,

If you run MPAS for short-term simulation (e.g., less than 5-day simulation), you don't need to turn on sst_update.

However, if you run MPAS for long-term simulation (e.g., sub-seasonal to climate), you definitely need to run with sst_update. SST from GFS can be used to create sfc_update datafile for sst_update.

It also works if you want to use other SST data files (e.g. NOAA OISST v2.1) to create sfc_update. In this case you need to read the netCDF file, write SST data to intermediate format, then run MPAS to process the data. We provide a sample piece of code to create intermediate format file. Please see details here.

 

[pouwereou Nimon]

Hi Pouwereou,

If you run MPAS for short-term simulation (e.g., less than 5-day simulation), you don't need to turn on sst_update.

However, if you run MPAS for long-term simulation (e.g., sub-seasonal to climate), you definitely need to run with sst_update. SST from GFS can be used to create sfc_update datafile for sst_update.

It also works if you want to use other SST data files (e.g. NOAA OISST v2.1) to create sfc_update. In this case you need to read the netCDF file, write SST data to intermediate format, then run MPAS to process the data. We provide a sample piece of code to create intermediate format file. Please see details here.

Hi Ming,
Thank you for the quick reply. Your explanation is clear. I’ll review the link and use the sample code to create an intermediate-format file from NetCDF. Thanks again.

Pouwereou

 

[Ming Chen]

Hi Pouwereou,

Just a suggestion: can you first try to use GFS SST to create sfc_update and run MPAS? This will give you a taste how the model works. If this test is done successfully, then you can move on to use other SST data.