[RegCNET] Urgent

[Solmon Fabien]

Hi Kumar

This issue has been discussed in the regcm archive a couple of years ago
so you migh find more detail there.
aext is an extensive varibele: it gives you the AOD of the layer on the
sigma grid. If you sum vertically yiou get the total AOD.
If you want to interpolate directly  on pressure level you might have
some trouble since it is an extensive varible. I suggest you normalise
first by the the height thickness of the layer on the sigma grid , you
'll obtain an aerosol extinction in m-1 ..  then you can interpolate
using sigma2p the usual scripts. Then you can go back to AOD
remultiplying by the thickness of the layer on the new pressure grid ..

fabien




On 11/02/2012 02:29 AM, Penki Ramesh Kumar wrote:
> Hi everyone,
>
>     The Netcdf files as output from the "Postproc"
> have a vertical level in sigma coordinate for the RegCM4.0 Chemistry
> (Espesailly aerosol output aext8) , What is the
> possibilities to get them in pressure coordinate
> instead. Any suggestion?
>
> Thanking you with anticipation
>  
> With regards
> P.Ramesh Kumar
>
>
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> RegCNET at lists.ictp.it
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