[RegCNET] calculation of K in PBL scheme

[flyyks]

Hi,

Thanks for your reply.

The modification of this parameterization is used in all versions of RegCM. There should be some reason for this modification. Can you give me some deeper interpretation? Is this method more reasonable?


2011-07-01 



flyyks 



发件人： Ivan Guettler 
发送时间： 2011-07-01  15:00:31 
收件人： flyyks 
抄送： regcnet 
主题： Re: [RegCNET] calculation of K in PBL scheme 
 
Hi,
Computation of temperature diffusivity profile is documented in
Holtslag et al., 1990: A High Resolution Air Mass Transformation Model
for Short-Range Weather Forecasting. Mon. Wea. Rev., 118, 1561-1575.
It seems the same profile should be applied for moisture also, but it
was customized latter in model development. If needed, you could
easily test what is more appropriate for your simulation.
Cheers,
Ivan
On Thu, Jun 30, 2011 at 5:51 PM, flyyks <flyyks at gmail.com> wrote:
> Hi,
>
> In "blhnew.F", the diffusivity of temperature is proportional to (1-z/h)**2;
> but that of humidity is proportional to 0.25*(1-z/h).
>
> can you give me the reference about this parameterization?  Thank you!
>
>
>
> 2011-06-30
> ________________________________
> flyyks
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