Anyone know how to calculate concentrations from plume results using tracers in WRF-LES?

[Again]

Hi
I referred to some resources and used WRF-LES to generate simulated plumes.
First referred
Second referred
And here is one of my result(After performing vertical integration of the wrfout results):

But I'm not sure what the simulation results represent. How should I convert these results into concentrations, like this?

I am a beginner just starting to learn. I would be very grateful if you could help me with this.

 

[Again]

I'm not sure I've got the vertical integration correct.
Here i find a thesis said they use this method to vertical integration.

Here is Eq.(2,1)


Is this the correct way?

 

[Ming Chen]

The method shown by Eq.(2.1) is correct for vertical integration.

In general, if the unit of your tracer is kg/kg, then you can convert it to PPM based on the common rule, i.e.,

1g/Kg = 1e+006 ug/Kg
1 ppm = 1e+006 pg/g

and

1 pg/g = 1e-006 ppm

I am not quire sure of your question regarding tracer concentration. Hope the above information is helpful for you.

 

[Again]

Thanks!!!

 

[shumera]

The method shown by Eq.(2.1) is correct for vertical integration.

In general, if the unit of your tracer is kg/kg, then you can convert it to PPM based on the common rule, i.e.,

1g/Kg = 1e+006 ug/Kg
1 ppm = 1e+006 pg/g

and

1 pg/g = 1e-006 ppm

I am not quire sure of your question regarding tracer concentration. Hope the above information is helpful for you.

Hi! I am still a little confused on this.

Is the unit of a WRF passive tracer in kg/kg? Additionally, do you have any recommendations on how to calculate and adjust the flow rate of the tracer in kg/hr?

Thank you!