CH4_INV (g/s) - definition

SMOKE
1

Hi everyone,

I am currently working on methane emissions from SMOKE. I found two variables related to methane: CH4 (moles/s) and CH4_INV (g/s). On converting CH4 (moles/s) to g/s, results don’t match CH4_INV. Apart from different units, are there additional differences between CH4 and CH4_INV please?

Thanks for your help.

Best,
Sara

2

CH4_INV is from onroad / SMOKE-MOVES only, while CH4 includes all methane, including the onroad portion.

Thank you for asking this question, as we are trying to recall why we added CH4_INV to the files a while back.

3

Thanks Alison, much appreciated!