The meaning of auxinput5_interval

[Adam Weng]

Dear all,

I have a question regarding the setting of auxinput5_interval. Could you have a look and help me out?

If I prepare the emission inventory format in wrfchemi_<hr>z_d<domain> (i.e., io_style_emissions= 1), should I set auxinput5 as follow?

auxinput5_interval_m = 60,

io_form_auxinput5 = 2,

frames_per_auxinput5 = 12, 

I’m not sure what ‘auxinput5_interval_m’ means. The emissions are the two 12 hourly files. Emission in every hour is different, because I have applied temporal allocation (diurnal pattern) of the emission. If auxinput5_interval_m is 60, the model will read the emission file every hour accordingly? For example, let’s say I start from UTC time, 2021-11-22 00:00; at 00:00, it will read emission at 00:00 from wrfchemi_00z_d01? Then the next hour (i.e., UTC, 2021-11-22 01:00), it reads emission at 01:00, still from the same emission file- wrfchemi_00z_d01?

What happen if I set auxinput5_interval_m = 720 but with other settings unchanged? Can all the hours during the simulation read emissions in this case? 

Thank you very much.

Best regards,

Adam