Hi, Dear regcmers,

 

 I made an regcm run including 6 aerosols as follows,

 

  $

   $chemparam

  idirect   =    2,

  chtrname  =

 'SO2','SO4','BC_HB','BC_HL','OC_HB','OC_HL',

  chtrsol   =  0.20, 0.80, 0.05, 0.80, 0.05, 0.80,

  chtrdpv   =

 0.00300,0.00200,0.00025,0.00025,0.00025,0.00025,0.00800,0.00200,0.00025,0.00250,0.00025,0.00250,

  dustbsiz  =  0.01, 1.00,

  $

 

 And attached is figure output of the 6 aerosols total AOD by using sum function in GrADS software.

 'define aod=sum(aext8,z=1,z=18)'

 'd ave(aod,t=1,31)'

 But the values are between 0.- 0.1 which are much less than normal AOD values(0.-1.0, seen as attached MODIS observation output)

 Are the simulated values right?

 I can't find out which step I was wrong.

 The values of original total vertical aext8 are actually between 0. - 0.1

 Has anyone done similar experiments?

 Please give me some advices about this.

 Thank you very much in advance.

 

 Regards,

 Libin Yan