Dear @lizadams @bbaek @wong.david-c @tlspero @cjcoats I want to combine CCTM results of LAYER 2 but couldn’t get it done. Below is what I got: Value for IOAPI_LOG_WRITE not defined;returning default: TRUE O3 written to OUTFILE for 2020059:000000 NO written to OUTFILE for 2020059:…

Thanks for posting these files. The basic problem is indeed that INFILE1-INFILE3 have 23 layers while INFILE4 has only 1 layer so there just is no way to define new variables that pull variables from INFILE4 and combine it with other variables from INFILE1-INFILE3. I am actually surprised that the …

Could you please provide the following information to help us troubleshoot this further? The full log file that shows which input and output files are opened and also displays some metadata for these files The species definition file specified in your combine run script The version of combi…

Dear @hogrefe.christian , Thanks for your prompt response and concerns. I use the same Species definition file for the average conc (ACONC) for LAYER 1 and it works well for the LAYER 1 of the CONC files too. But I want the results of other layers (LAYER 2 and above) too. I’m using CMAQv5.2 with Sap…

Thank you. I think I see now what is happening, and unfortunately I think it means you’ll have to edit your SpecDef file a bit to get around this error. If I understand it correctly, the problem is that while the SpecDef syntax allows the use of [0] brackets to indicate that a previously-defined va…

Dear @hogrefe.christian I sincerely appreciate your responses and guide. Your suggestion has worked for me. Thanks and best regards, sir. Catalyst

Thanks for letting us know that this solved the problem. On second thought, if your goal was to generate combined species for all the 18 layers present in your CONC file into a single 3D combine output file, you could have kept the original SpecDef file with all the [0] references and only commente…

Dear @hogrefe.christian , I know I could get the whole layers combined in a 3D output file as you’ve stated. But when I did, I couldn’t get each layer extracted for the sites I wish to analyze, the reason I chose to combine each layer separately. Thanks and kind regards, sir. Catalyst

Dear @hogrefe.christian , In CMAQ-5.2 and saprc07tic_ae6i_aq mechanism, below is the definition for this species: ASOMI ,ug/m3 ,ALVOO1I[1] + ALVOO2I[1] + ASVOO1I[1] + ASVOO2I[1] ASOMJ ,ug/m3 ,AXYL1J[1] + AXYL2J[1] + AXYL3J[1] + ATOL1J[1] + ATOL2J[1] + ATOL3J[1] +A…

Yes, ASOMIJ represents the total mass associated with the secondary organic aerosols simulated by CMAQ.

Hello, Christian Hogrefe, I want to generate combined species for all the 23 layers into a single 3D combine output file. My INFILE1, INFILE2, INFILE3 have the same number of layers according to your comments. However, INFILE4 as define as below should be 2D and represents surface variables: #> F…

How to Combine CCTM for Layer 2 and other layers in the CONC file

CMAQ-POST

Catalyst2682 August 27, 2020, 1:07pm 10

Dear @hogrefe.christian,

Thanks so much for your usual prompt responses. They help a lot.

An error occurred while doing species mixing

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How to Combine CCTM for Layer 2 and other layers in the CONC file

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