Question about "ptfire" inline emission file structure


#1

Hello,

I processed a fire case inside SMOKE and created inline files and ran CMAQ with them, but CMAQ results do not represent days of the fire accurately.

I was wondering how data is organized inside inline emission files? For example, what does ROW and COL represent? Those values are different from ROW/COL numbers in my emis_mole files.

I would appreciate if someone points me to a documentation about that.

Also, is there a way to visualize inline emission files to confirm that emissions are processed correctly?

I am using NEI2011-ek.

Thanks.


#2

I found the following documentation that describes that SMOKE treats the wildfire as a point source:
“In addition, wildfire sources require the latitude and longitude source attributes to locate the fire. Note that all emissions for a fire will be assumed to come from the single grid cell that contains the latitude and longitude of the fire.”
https://www.cmascenter.org/smoke/documentation/4.6/html/ch02s03s02.html

You may be able to process the inline emissions file using the SMOKE Utility program:
Inlineto2D merge CMAQ Inline 2D emissions with stack group emissions to create a gridded emissions file that you could then check with VERDI.

You can also try a search using the PDF version of the SMOKE documentation, I was using the keyword fire: https://www.cmascenter.org/smoke/documentation/4.6/manual_smokev46.pdf


#3

Hi Ehsan,

That is a good question. Since inline emissions file is not gridded, ROW is used to represent number of sources and COL has been set it to 1.

BH