[gradsusr] Help

[Reto Stauffer]

Oh ... sorry, but i have probably explained something completely different.

If i understood it correctly you have had some station data and  
interpolated those onto a regular grid? In this case you can create a  
gribfile with lon/lat fields, create a grib or netcdf file (as  
explained in my last mail) and plot the fields as contour or shaded  
plots.

The binary files are used for station data which are "not" on a  
regular grid. Then you have to create a binary file in a special form.

Here you can find an example
http://www.wishingwork.com/grads/control-file/station-operation.html

Best wishes
Reto



Zitat von Reto Stauffer <Reto.Stauffer at student.uibk.ac.at>:

>
> Hello Libin
>
> Both file formats are possible. If you create it on your own i would
> suggest the NetCDF version because it is easyer to handle. Normally
> you should not need an additional ctl file. For nearly every
> programming language there are some NetCDF libraries or packages to
> write the NetCDF file. The most easy way for me was using the python
> "pupynere" (pure python netcdf reader) - or in newer python.numpy
> packages included in numpy.io.netcdf package.
>
> Important: you have to use the COARDS NetCDF standard (link see
> below). Big benefit: you can open a netcdf file with grads without the
> controlfile using "sdfopen file.nc".
>
> If you write a gribfile there are two perl scripts on the ncdp webpage
> (grib2ctl for grib1 file format, g2ctl for grib2 file format:
> http://www.cpc.ncep.noaa.gov/products/wesley/grib2ctl.html) to create
> a ".ctl" file from your gribfile. So for gribfiles the process is
> something like this:
>
> a) create grib file
> b) perl grib2ctl -verf file.grib > file.ctl
> c) gribmap -i file.ctl
> d) grads -> open file.ctl
> (grib2ctl crates the controlfile, gribmap is a grads routine which
> maps the controlfile and creates a .idx file, then you can open the
> gribfile with "open file.ctl". If everything is ok you can plot the
> data now.
>
> Probably those hints helps you to reach your goals
>
> Best wishes and have a nice weekend
> Reto, Innsbruck, Austria
>
> pupynere: http://pypi.python.org/pypi/pupynere/
> numpy: http://numpy.scipy.org/
> netcdf libraries: http://www.unidata.ucar.edu/software/netcdf/
> coards standard: http://ferret.wrc.noaa.gov/noaa_coop/coop_cdf_profile.html
>
>
> Zitat von zjuyanlibin <zjuyanlibin at 163.com>:
>
>> Dear GrADS users,
>>
>> I interpolated a station file into a fixed grid.
>> How to output the interpolated data into a bin+ctl or netcdf file?
>> Any suggestion is welcome.
>>
>> Regards,
>>
>> Libin
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>