[gradsusr] wgrib and hirlam grib

[Wesley Ebisuzaki]

Fil,

     wgrib doesn't support complex-packed grids.  The error message "two 
values of nxny"
is bogus.   Sorry but wgrib/grib2ctl are more or less frozen with NCEP's 
conversion to grib2.

AFAIK GrADS doesn't support grib1 complex-packed grids either. 

             Yours,
             Wesley Ebisuzaki

Fil wrote:
> Hi all,
>
> I'm trying to do some plotting with hirlam rotated gribs but I'm 
> getting an error with wgrib (v1.8.1.0d):
>
> # wgrib -V hirlam.grb
> grib header at record 1: two values of nxny 246768 50158
>    LEN 171286 DataStart 14 UnusedBits 7 #Bits 9 nxny 246768
> rec 1:0:date 2010113018 PRES kpds5=1 kpds6=103 kpds7=0 levels=(0,0) 
> grid=255 0 m above MSL 54hr fcst:
>   PRES=Pressure [Pa]
>   timerange 0 P1 54 P2 0 TimeU 1  nx 50158 ny 1 GDS grid 10 num_in_ave 
> 0 missing 0
>   center 214 subcenter 0 process 1 Table 1 scan: WE:SN winds(grid)
>   rotated LatLon grid  lat -35.500000 to 32.180000  lon -46.500000 to 
> 46.460000
>     nxny 50158  (582 x 424)  dx 160 dy 160  scan 64  mode 136
>     transform: south pole lat -35.000000 lon -15.000000  rot angle 
> 0.000000
> *** Cannot decode complex packed fields n=50158***
>
>
> With grib2ctl.pl <http://grib2ctl.pl> (v0.9.12.5p46):
>
> # grib2ctl.pl <http://grib2ctl.pl> hirlam.grb > hirlam.ctl
> grib header at record 1: two values of nxny 246768 50158
>    LEN 171286 DataStart 14 UnusedBits 7 #Bits 9 nxny 246768
> grib header at record 2: two values of nxny 246768 50158
>    LEN 154832 DataStart 14 UnusedBits 6 #Bits 9 nxny 246768
> grib header at record 3: two values of nxny 246768 50158
>    LEN 231734 DataStart 14 UnusedBits 0 #Bits 10 nxny 246768
> grib header at record 4: two values of nxny 246768 50158
>    LEN 232468 DataStart 14 UnusedBits 14 #Bits 10 nxny 246768
> grib header at record 5: two values of nxny 246768 50158
>    LEN 137810 DataStart 14 UnusedBits 13 #Bits 7 nxny 246768
> grib header at record 6: two values of nxny 246768 50158
>    LEN 256406 DataStart 14 UnusedBits 7 #Bits 14 nxny 246768
> grib header at record 7: two values of nxny 246768 50160
>    LEN 219698 DataStart 14 UnusedBits 0 #Bits 10 nxny 246768
> grib header at record 1: two values of nxny 246768 50158
>    LEN 171286 DataStart 14 UnusedBits 7 #Bits 9 nxny 246768
> *** Cannot decode complex packed fields n=50158***
>
>
> # gribmap -i hirlam.ctl
>  grib1map:  opening GRIB file: hirlam.grb
>  grib1map error: GRIB file format error (rc = 53)
>
> I have attached the grib file.
>
> Any help appreciated.
>
> Regards.
> ------------------------------------------------------------------------
>
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