Hi Jianwei

chia and chib are 4d (x,y,x, trac) arrays representing the different

tracer fields that you can choose for as simulation . The SW radiative

properties of the aerosol mixing are calculated in aeroppt.F and they

use some data ( extinction, single scattering albedo and assymetry

parameter) relative to each individual tracer, and defined in

/Main/Common/aeroppt.cb. In aeroppt are calculated the effective

radiative parameters that are used then by the SW code ( radcsw.F and

radclr.F routines ) . The activation of the coupling is piloted by the

variable idirect in the regcm.in : idirect = 2 means that you allows the

radiative perturbation linked to aerosol to feedback in the atmosphere,

idirect 1 , you just calculate a radiative forcing without modifying the

atmospheric fields.

Hope it helps.

Fabien

jwzhou66 wrote:

> Hello,everyone!

> I am looking for the interface of aerosol module and radiation module

> in regcm3 Main directory for more than one weeks,but not find it.I

> want to do something about the aerosol simulation,and need change some

> radiation parameters for aerosol in the regcm3.There are so many

> programs and complicated variables in Main directory,I can not find

> where is the radiation parameters , where is the interface!I find the

> radiation module comlod3.f and tracer tendencies calculation

> module.I'd like to konw how the radiative force of aerosol is

> done,Is there detail guide explain its process .And What does the

> varaible "chia" and "chib"

> in aerosol programs mean?They appear frequerntly.

> Please give me some advice and tell me how to do!Appreciated for your

> help!

> Thank you very much!

> Your sincerely,

> Jianwei Zhou

>

>

>

>

>

>

>

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