[Wrf-users] interpolating to height above ground

[Roberto Chavez]

Hi Sam,



As far as I know, there are some good programs such as RIP4 that allows 
you to vertically interpolate WRF data, however most of them (including 
RIP4) use linear interpolations.



Matlab is a good option, it can read netCFD files and you it can be 
easily programed to fit different interpolating functions depending on 
the meteorological parameter you want to determine. For instance, for 
the wind speed interpolation, the best functional relation is the 
similarity theory, in order to be consistent with the boundary layer 
physics of the WRF , although is easier and faster to fit either the 
power law or the neutral logarithmic profile for the wind vertical 
curve.



Hope this helps

Roberto

PhD student.  ITESM Monterrey, México
Wind Energy Group
http://fisica.mty.itesm.mx/fisica/WEG/home.html


> Date: Mon, 22 Nov 2010 11:20:48 +0000
> From: s.hawkins at ed.ac.uk
> To: wrf-users at ucar.edu
> Subject: [Wrf-users] interpolating to height above ground
> 
> Dear WRF users,
> 
> I want to interpolate WRF output from eta levels to heights above the
> model terrain height.  I need the code to be relatively fast, and
> ideally write to netcdf files. My eta levels are quite closely spaced,
> so I could probably get away with linear interpolation between levels.
> 
> Does anyone know whether there is any existing tool which will do this
> (it seems GEMpak might have this functionality), or (b) are there any
> tools, such as the netcdf operators or climate data operators which
> might be adaptable to do this.
> 
> Sam.
> 
> -- 
> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.
> 
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