PORT output missing PS?

[drosa@lbl_gov]

Not sure if it's meant to be like this or not ...The h1 file that PORThttps://wiki.ucar.edu/display/port/PORTcreates automatically does not have PS (surface pressure) but it has all the hybrid pressure coefficients.I suspected that PS was forgotten. 

 

[eaton]

It appears that the file does contain the midpoint pressures (rad_pmid) as well as wet and dry pressure differences for each layer (rad_pdel, rad_pdeldry).  Since the PS field is not included I can only assume that PORT doesn't need it. 

 

[drosa@lbl_gov]

Thanks for the comment, Brian.Another question:Imagine I want to check the radiative forcing for changing concentration of SO4 to a half: [SO4]->[SO4]/2.Do I have to prepare a forcing files for that have ALL rad_[] variables or just rad_SO4/2. from the original output?The model seems not to like the latter. It stops without commenting. I am asking because the latter is much lighter in terms of data storage. 

 

[eaton]

I believe that PORT is implemented with a single input stream which would imply that all the variables produced for the offline driver need to be present in the files uses as input.  I agree it would be nice to allow a second input stream which could be used to modify fields from the original output.  I'll keep that in mind.  Thanks for mentioning it.