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Radiation effects of dust aerosol

wbr2023

彬睿王
Member
Hi!

I am currently using the FHIST compset of CESM2.1.3 for simulation, with a planned simulation period from 2000 to 2014. I have set up two sets of tests: (1) one set of tests defaults to turning on dust emission; (2) Another set of tests turned off dust emission by setting the soil_erod_file namelist variable to zero. I am now using the difference between these two sets of tests to separate the effects of dust aerosol, including their impact on radiation, cloud microphysical properties, and precipitation. But I am confused about this method of separating dust radiation effects.

Question:
The net radiation flux at TOA in test(1) is (FSNT1+FLNT1), and the net radiation flux at TOA in test(2) is (FSNT2+FLNT2). I would like to know if the value of (FSNT1+FLNT1) - (FSNT2+FLNT2) represents the change in net radiation flux at TOA caused by dust aerosol.

Sincerely hope to get your advice.
Best wishes!
 
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