WRF tracer_opt setting

[MSdueon12]

Hi,
I am using tracer_opt these days and I am a little confused about the description in User_guide. It is said that


Now I am using two tracers (P_tr17_1 and P_tr_17_2), from the user guide's description, there are a pair of tarcers, one is the completely passive and other one has a first-order decay. Does it mean that the P_tr17_1 and P_tr17_2 shoule belong to the first tracer of my setting and the P_tr17_3 and P_tr17_4 should be the second tracer in my setting? Specificly, P_tr17_1 and P_tr17_3 are the completely passive tracer for the first tracer and second tracer respectively and P_tr17_2 and P_tr17_4 are the first-order decay respectively?

I really appreciate your help. Thanks a lot in advance.

 

[Ming Chen]

Are you running WRF-Chem?

 

[MSdueon12]

No, I am running WRF only.

 

[Ming Chen]

Where did you see the phase shown in your png file? As far as I know, all tracers are treated the same when tracer_opt=2.

 

[MSdueon12]

I found it in WRF-Chem User Guide V4.4.

 

[MSdueon12]

Thanks Dr. Chen, I realised that this setting is valid just for when tracer_opt=1. Thanks for your reminding.

 

[yangli]

Are you running WRF-Chem?

could you help me when i run wrf-chem meet some troble in set pm as a tracer, the wrfout file did not contain pm variation. Looking forward to reply！

 

[Ming Chen]

yangli,
Please open a new thread and clarify your issue is related to wrf-chem. Otherwise the chem people may not be able to notice your post.