Re: Reading GRiB1 from ECMWF, parameter table 140

Yes.

http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclFormatSupport.shtml#GRIB
Specifically,
http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/ecmwf_140.htm

NCL has a command line operator ( ncl_convert2nc )that can be used to
convert GRIB1 or GRIB2 to netCDF.

http://www.ncl.ucar.edu/Document/Tools/ncl_convert2nc.shtml

====
Download version 5.1.1
http://www.ncl.ucar.edu/Download/index.shtml

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I have no idea what you are going do do with the data
but I am also sure that NCL could do it directly
without the conversion to netCDF/

Lonneke Goddijn-Murphy wrote:
> Hi, I have a data set concerning waves from ECMWF encoded in GRIB Ed. 1 (FM92-VIII), and want to extract the data. I am used to using MATLAB, but the MATLAB GRiB reader I found can't read ECMWF's parameter table 140. I suspect it would be too slow anyway. I have never used NCL, and I don't know anyone who has, and I would like to find out if I can get GRiB data out reasonably straightforward. The data is gridded, 0.25 resolution (the area is 10 x 7 degrees), and 4 times daily (period is one month). There are 30 parameters. What I want to achieve is: get the values of certain parameters (eg wave height, slope etc.) at 170 times and locations (stations during a cruise). Can I do this using NCL? I know how to read NetCDF in MATLAB. I would do it station for station if I had to.
>
> I don't expect an answer explaining how to do it, just an indication if NCL is the way to go or not.
>
> Thanks
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Received on Sun Jun 21 2009 - 07:24:23 MDT