Alkim: Ok, I finally have a "concurrent model processor" (modelproc) from which you can get NO+. This code executes time-gcm version 20 for a single time step, saving NO+ (and optionally other fields), then the processor part makes the plots and/or ascii data. Take the following steps from your home on cedar: 1. mkdir ~/modelproc 2. cd ~/modelproc 3. cp ~foster/modelproc/newuser/README . 4. cp ~foster/modelproc/newuser/modelproc_tgcm20.alkim modelproc_tgcm20 Read the README. The file modelproc_tgcm20 is the script to submit. I have set it up as an example of how to run for one of the histories you have been looking at. Let me know when you get it and I will remove it from ~foster/modelproc/newuser. Don't worry about TSEYDRx volumes not being tgcm20 -- they should work ok. You might want to ask Ray about new runs, I think he may have made some new runs with tgcm20. The inputs are in two parts, the first for the processor, second for the model. The processor inputs look similiar to tgcmproc. The inputs for the model are lexical reads rather than namelist, but just follow the obvious syntax. For successive runs, you should only have to change SOURCE, START, STOP, etc., in the model inputs. (don't forget to set sendcgm and senddat in the processor the first time). Submit like tgcmproc, i.e., "nrnet shjob modelproc_tgcm20". This is probably a bit buggy. Let me know when you have problems. Also beware it requires a lot more memory than tgcmproc, i.e., keep your QSUB -lM up around 7.5 to 8Mw. Good luck -- I will probably log in from home on Sunday, so send me mail if you try it out this weekend. --Ben BTW, if you have occaision to make several successive runs of tgcmproc, you can job-step it, i.e., make several executions with different inputs from the same script, i.e., in the same batch job, rather than waiting for each job separately. Call me if you want to do this.