How to separate the direct and indirect effects of aerosols in CAM5.1?

[dengjiechun@outlook_com]

Hi everyone,    I'm runing CAM5.1 stand alone via CESM1.0.3 with the compset FC5. I'd like to investigate the direct and indirect effects of aerosols. But I have no idea how to separate these two effects( which means that only keeping the direct or indirect effect of aerosols alone ) in the model. So I really need to know how to turn off the direct or indirect effect of aerosols in CAM5.1. Should I modify somewhere in the namelist or something else? I'm trapped here and feeling confused for a long time.Thanks for suggestion and any help! I'll appreacite a lot!Jason

 

[chen63@illinois_edu]

The following paper may help Ghan, S. J., X. Liu, R. C. Easter, R. Zaveri, P. J. Rasch, J.-H. Yoon, B. Eaton, 2012: Toward a Minimal Representation of Aerosols in Climate Models: Comparative Decomposition of Aerosol Direct, Semidirect, and Indirect Radiative Forcing. J. Climate, 25, 6461–6476.doi: http://dx.doi.org/10.1175/JCLI-D-11-00650.1