grib2ctl

[Wesley Ebisuzaki]

Dan,

     Works for me.

     If you want to use the verification time, use

              grib2ctl.pl -verf gribfile >gribfile.ctl
              gribmap -i gribfile.ctl

     If you want to use the initial time (start of the forecast), use

              grib2ctl.pl gribfile >gribfile.ctl
              gribmap -0 -i gribfile.ctl

        Wesley


Daniel Leins wrote:

> List,
>
> Has anyone had any success in downloading NCEP grib data from
> ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/nam/prod, and converting it
> into a GrADS readable format using either this "degrib" or grib2ctl?
> I've tried to use grib2ctl, I can generate a ctl file,, however when I
> `gribmap -v -i model.ctl`, this is the output I get...
>
> gribmap:  Scanning binary GRIB file(s):
> gribmap:  Opening GRIB file nam.t12z.awp21112.tm00
> ----- Time out of bounds:    1       9918  211  1  0  130  102
> 0             89          0  13 btim: 2005040812:00 tau:     12 dtim:
> 2005040900:00
> ----- Time out of bounds:    2      19836  211  1  0   2  102 0
> 10007          0  13 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:    3      25974  211  1  0  41  100 250
> 19925          0  8 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:    4      32112  211  1  0  41  100 500
> 26063          0  8 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:    5      38250  211  1  0  41  100 700
> 32201          0  8 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:    6      44388  211  1  0  41  100 850
> 38339          0  8 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:    7      51282  211  1  0  41  100 1000
> 44477          0  9 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:    8      63466  211  1  0   1   1 0
> 51371          0  16 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:    9      74138  211  1  0   7   1 0
> 63555          0  14 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:   10      80276  211  1  0  11  105 2
> 74227          0  8 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:   11      85660  211  1  0  52  105 2
> 80365          0  7 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:   12      91044  211  1  0  33  105 10
> 85749          0  7 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:   13      96428  211  1  0  34  105 10
> 91133          0  7 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
> ----- Time out of bounds:   14     103322  211  1  0  61   1 0
> 96517          0  9 btim: 2005040812:00 tau:     12 dtim: 2005040900:00
>
>
> etc.....all the way down through Time out of bounds: 181.  The map is
> written, however when I try and display anything within GrADS, I'm told
> that "Entire Grid undefined".
>
> I followed the directions verbatim at
> http://grads.iges.org/grads/gadoc/grib2.html, can anyone enlighten me on
> what I may have done wrong?  I've included some of my model.ctl file,
> which is quite lengthy, but here's some of it anyway.
>
> dset ^nam.t12z.awp21112.tm00
> index ^nam.t12z.awp21112.tm00.idx
> undef 9.999E+20
> title nam.t12z.awp21112.tm00
> *  produced by grib2ctl v0.9.12.5p33k
> dtype grib 211
> pdef 93 65 lcc 12.19 -133.459 1 1 25 25 -95 81270.5 81270.5
> xdef 161 linear -140 0.5
> ydef 81 linear 20 0.5
> tdef 1 linear 12Z08apr2005 1mo
> zdef 19 levels
> 1000 950 900 850 800 750 700 650 600 550 500 450 400 350 300 250 200 150
> 100
> vars 69
> no4LFTX180_0mb  0 132,116,46080 ** 180-0 mb above gnd Best (4-layer)
> lifted index [K]
> ABSVprs 5 41,100,0 ** Absolute vorticity [/s]
> ACPCPsfc  0 63,1,0  ** surface Convective precipitation [kg/m^2]
> APCPsfc  0 61,1,0  ** surface Total precipitation [kg/m^2]
> CAPEsfc  0 157,1,0  ** surface Convective Avail. Pot. Energy [J/kg]
> CAPE180_0mb  0 157,116,46080 ** 180-0 mb above gnd Convective Avail.
> Pot. Energy [J/kg]
> CAPE90_0mb  0 157,116,23040 ** 90-0 mb above gnd Convective Avail. Pot.
> Energy [J/kg]
> CFRZRsfc  0 141,1,0  ** surface Categorical freezing rain [yes=1;no=0]
> CICEPsfc  0 142,1,0  ** surface Categorical ice pellets [yes=1;no=0]
> CINsfc  0 156,1,0  ** surface Convective inhibition [J/kg]
> CIN180_0mb  0 156,116,46080 ** 180-0 mb above gnd Convective inhibition
> [J/kg]
> CIN90_0mb  0 156,116,23040 ** 90-0 mb above gnd Convective inhibition
> [J/kg]
>
>
> Thanks,
> Dan Leins