Difference of temperature in Restart and daily output file

[jagdishprajapati]

Hi there all,
I have plotted temperature for the same time from restart and daily output file but I am getting very large difference between both of them. Daily file represent expected profile of temperature. Can any one help me in this regard, what is the reason behind it and how to overcome this situation. Here I am used daily snapshot to compare with restart profile temp. Please see the attached file.Red and green curve represent restart and daily temperature profile respectively. Thanks in advance.

 

[adcroft]

My first guess is that the plotting is not taking into account that the diagnostics and restart files are in different coordinate spaces (restarts are always is in "native" space). If you are running the model in hybrid-coordinate or layer mode you need to calculate the actual depth of the restart data before plotting or analyzing it. I'm guessing your snapshots are from the ocean_model_z module in the diag_table for which the model interpolates the state to a z coordinates for you.

 

[jagdishprajapati]

My first guess is that the plotting is not taking into account that the diagnostics and restart files are in different coordinate spaces (restarts are always is in "native" space). If you are running the model in hybrid-coordinate or layer mode you need to calculate the actual depth of the restart data before plotting or analyzing it. I'm guessing your snapshots are from the ocean_model_z module in the diag_table for which the model interpolates the state to a z coordinates for you.

Hi Adcroft,
Thanks so much for your quick reply. Your guess is correct, I am saving daily snapshot from the ocean_model_z module in the diag table. I will give a try to your suggestion and get back to you.

 

[jagdishprajapati]

I interpolated the Restart temp consider the target vertical grid from daily snapshot file but could not get expected profile. Even I checked for tools to post process restart file but couldn't find any tool. Is there any tool available to post process mom6 restart file?