[pyngl-talk] reading intermediate WPS files

Bill Ladwig ladwig at ucar.edu
Fri Mar 3 09:44:32 MST 2017

Hi Marie,

Not currently, but NCL can read the WPS files.  I will make a ticket to add
this to the wrf-python package, but don't think this will make it in to the
soon-to-be released 1.0.0 version (beta versions are available now from
conda using the conda-forge channel if you want the diagnostic and
interpolation routines in python).

Here is the description of the WPS/intermediate binary files:


You should be able to use the struct, array, or scipy.io.FortranFile
modules from python to read/write the files, or you can modify the sample
Fortran code and use f2py to work in Fortran.

Hope this helps,


On Fri, Mar 3, 2017 at 6:23 AM, Marie Pontoppidan <Marie.Pontoppidan at uni.no>

> Hi.
> I have been trying for a while to find a way of reading one variable from
> multiple intermediate files into python for analysis and plotting. However
> this seems to be more or less impossible. One could read from the met_em
> files instead, but I would really like to do some analysis on these
> intermediate files, before the met_em interpolation.
> Is there a pyngl/pynio function for reading selected variables directly
> from the intermediatefiles?
> Cheers,
> *Marie Pontoppidan*
> PhD student
> Uni Research Climate
> email: marie.pontoppidan at uni.no
> mobile: +47 975 73 215 <+47%20975%2073%20215>
> office: +47 555 89 832
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