How to calculate PM2.5 using CESM 2.1.4 BHIST output?

[xnnzka]

Hello, everyone
I am using CESM2.1.4 BHIST compset to simulate. Generally we want to do some analysis on climate, but recently we also want to analyze the health impacts so we need PM2.5. But as you see, I use BHIST without chemistry mode (not BCHIST), so there is no direct output for PM2.5.
My user_nl_cam has been added these output:
'bc_a1_SRF:A','bc_a4_SRF:A','dst_a1_SRF:A','dst_a2_SRF:A','dst_a3_SRF:A',
'ncl_a1_SRF:A','ncl_a2_SRF:A','ncl_a3_SRF:A','pom_a1_SRF:A','pom_a4_SRF:A',
'so4_a1_SRF:A','so4_a2_SRF:A','so4_a3_SRF:A','soa_a1_SRF:A','soa_a2_SRF:A',
'SOAG_SRF:A'

This is MAM4 for aerosols. I see some discussions about MAM3/7, so I am still confused.
I want to know how to calculate surface PM2.5 using MAM4 output?

 

[hplin]

Hi, you may find the discussion here useful: PM2.5 in CESM

It may not be possible to fully reconstruct this information without the num_a1/2/3/4 fields but I believe you could get an approximation.

 

[xnnzka]

Hi, you may find the discussion here useful: PM2.5 in CESM

It may not be possible to fully reconstruct this information without the num_a1/2/3/4 fields but I believe you could get an approximation.

Thank you!
And I can now add the num_a1/2/3/4 output. I still have about six experiments left to run so I can add these variables.