Re: question about convert ECMWFds117.0 data into fix grid data

>I am trying to convert the ECMWFds117.0 data to 2.5*2.5 degree data.
>I am using the NCL g2fsh function to do that. The problem is that
>ECMWFds117.0 data is in reduced N80 Gaussian grid, which need
>to be converted to regular N80 Gaussian grid first, I guess. Does anyone
>know a way to convert the reduced N80 Gaussian grid to regular N80
>Gaussian grid in NCL?
>_______________________________________________

[1] NCL *automatically* converts the data to a
    regular N80 Gaussian grid. NCL uses an ECMWF
    supplied code to do this.
    
[2] Why not use ds118.0? It is already on a 2.5 x 2.5 grid

    http://dss.ucar.edu/datasets/ds118.0/
    ERA40 2.5 Degree Latitude-Longitude Gridded Surface
              and Single Level Analysis from ECMWF
              
[3] If you want to convert from GRIB to netCDF use NCL's
    ncl_grib2nc ... a command line operator.
     
     http://www.ncl.ucar.edu/Document/Tools/ncl_grib2nc.shtml
    
good luck

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Received on Wed Jul 19 2006 - 17:15:04 MDT