Inquiry about vertical levels

[518er2005]

I'm inquiring about the vertical levels present in the "history" file. Our model was configured with 55 levels, but I can't find specific information on these levels in the documentation. While "diag" files interpolate variables like "relhum" for levels such as 920 hPa and 850 hPa, my research requires data at specific pressure levels: 1000, 950, 900, 850, 800, 750, 700, 650, 600, 550, 500, 400, 450, 350, 300, 250, 200, and 100 hPa. I've come across suggestions to modify the "Registry.xml" file, but limited time and computational resources make rerunning the simulations impractical. If anyone could provide insight into the pressure levels stored in the history files, it would greatly assist my study.​

 

[Ming Chen]

Hi,
I am sorry to answer late. Just in case you still have this question, you can include the variable 'zgrid' in your history file. This variable is the geometric height of layer interfaces in MPAS. You can also include 'pressure' and 'surface_pressure' in history file. Then you can employ some post process tools to interpolate variables to the pressure levels.

Another option is to modify Registry and related codes to output data on specific pressure levels. To do this, please refer to the following codes:

(1) Registry_isobaric.xml
(2) mpas_isobaric_diagnostics.F

You can follow the same approach to add extra diagnostic variables you need.

 

[joaomas]

I'm inquiring about the vertical levels present in the "history" file. Our model was configured with 55 levels, but I can't find specific information on these levels in the documentation. While "diag" files interpolate variables like "relhum" for levels such as 920 hPa and 850 hPa, my research requires data at specific pressure levels: 1000, 950, 900, 850, 800, 750, 700, 650, 600, 550, 500, 400, 450, 350, 300, 250, 200, and 100 hPa. I've come across suggestions to modify the "Registry.xml" file, but limited time and computational resources make rerunning the simulations impractical. If anyone could provide insight into the pressure levels stored in the history files, it would greatly assist my study.​

Hi 518er2005, were you able to extract the variables to the desired levels? What method did you use?