Re: vinth2p_ecmwf interpolation type

>I am trying to use vinth2p_ecmwf function to
>interpolate CCSM3 output data U,V,Q,T, Z3 to certain
>pressure levels. There are three options for
>interpolation type (intyp): Linear, Log,and Log-Log. I
>guess I can use Linear for U and V, and LOG for T and
>Z3. However, I don't know which type is the best for Q
>(specific humidity). Do I have to convert Q to
>relative humidity first and then use Linear method?

No ... LOG is fine.

Also, since the interpolation is between adjacent layers,
the interpolation differences are not large.
>
>There are also varflg argument for variable types. I
>am wondering if I set variable type (such as: 1 =
>temperature, -1 = geopotential height, 0 = all
>others), do I still need to care about the intyp type
>above?

No
>
>I greatly appreciate any comments or suggestions.
>
>________________________________________________________
For the record, vinth2p and vinth2p_ecmwf are directly
from the original 'CCM Processor'. The CCM Processor
was discontinued due to lack of portability and flexibility.
NCL has several functions directly from the original
processor.
>_______________________________________________

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Received on Wed Feb 21 2007 - 10:44:09 MST