Not run combine dry deposition

AMET
1

Hi @wyat.appel,

I am using the aqProject_pre_and_post.csh script in AMET to combine CMAQ output files. It seems that it combines ACONC and DRYDEP files by default. As I do not have the DRYDEP files available, is there a way to run the program without combinign DRYDEP files?

Thanks,
Qian

2

Hi Qian,

The deposition combine file contains both wet deposition and dry deposition species. Do you simply want to avoid creating the deposition combine file altogether, or remove those species in the combine file that come from the CMAQ dry deposition file?

If it’s the former, you can simply comment out the call to the executable in section 8b of the aqProject script.

#> Executable call:
${EXEC_combine}

to

#> Executable call:
#${EXEC_combine}

If it’s the later, you’ll need to create a new deposition species definition file that does not contain any dry deposition species.

I’ll assume for now it’s the former and my suggestion about will suffice. If it’s the later, I can explain further what needs to be done.

Wyat

3

Thanks for the reply! Yes, you are right. I am in the former situation but another issue is that I do not have APMDIAG files, neither. The error I got is " Unknown file type for file number: 3". Do I have to have APMDIAG files to combine ACONC files?

Thanks,
Qian

4

You don’t need the APMDIAG to combine the ACONC files. But, you will need to comment out all species definitions in the ACONC SPEC DEF file that use the APMDIAG species. Just look for any species in the SPEC DEF that refers to INFILE 3, which should be the APMDIAG file. You’ll need to comment out those species, and any species definitions that use those species (represented as INFILE 0).

Since the APMDIAG is used primarily to calculate the sharp cutoff of the CMAQ modes at 2.5 microns, you will be commenting out the species that start with PM25_. You will still have the species that are defined using the I, J and K modes from the CMAQ ACONC file.

Let me know if any of that is unclear.

Wyat