[gradsusr] Can't view in GrADS

Bill Reilly bill_reilly at compuserve.com
Thu Jan 21 13:10:46 EST 2021


Jason:

Instead of opening the GRIB file:

'sdfopen C:\OpenGrADS-2.2\RawData\pgbf2021012018.04.2021012012.grb2'

Try opening the ctl file:

'sdfopen C:\OpenGrADS-2.2\RawData\pgbf2021012018.04.2021012012.ctl' (or 
whatever you have named the control file)

Regards,

Bill

--

Bill Reilly

(+34) 686-110-748

bill at passageweather.com
www.passageweather.com

bill at brwebworks.com
www.brwebworks.com

On 01/21/2021 18:20, Jason Warren wrote:
> Hello,
>
> I have a script to read a CFS file that I have downloaded.  I created 
> the ctl file and have the index file.  But, all I get it a blank 
> image.  I checked the file in another program (WCT) and it does 
> contain data.   Please, what am I doing wrong?
>
>
> 'sdfopen C:\OpenGrADS-2.2\RawData\pgbf2021012018.04.2021012012.grb2'
>
> count = 1
> while (count <= 1)
>
> 'set t 'count
>
> 'set lat 18 56'
> 'set lon -128 -64'
> 'set mproj latlon'
> 'set display color white'
> 'set map 1'
> 'set mpdset hires'
> 'set mpdraw on'
> 'set timelab off'
> 'set grid off'
> 'set strsiz .1'
> 'set ylab off'
> 'set xlab off'
>
>  'q time'
>     h=substr(result,8,2)
>     weekday=subwrd(result,6)
>     m=substr(result,13,3)
>     d=substr(result,11,2)
>     y=substr(result,16,4)
>
>  "set gxout contour"
>  "set cint 4"
>  "set cthick 1"
>  "set ccolor 1"
>  'set clab masked'
>  "set clopts -1 -1 0.06"
>  'd GPA500mb'
>
> 'set strsiz .10'
> 'set string 1 l 5 0'
> 'draw string 0.6 8.2 MODEL: 'model' RUN TIME: 'zhr'z 'date''
> 'draw string 0.6 8.0 CFS'
>
> fmt='%02.0f'
> cc=math_format(fmt,count)
>
> 'printim C:\OpenGrADS-2.2\MODELS\CFS\CFS-'cc'.png x1300 y975'
>
> count = count + 1
> 'c'
> endwhile
>
>
> In the same directory as the grb file, I have the following ctl file:
>
>
> dset C:\OpenGrADS-2.2\RawData\pgbf2021012018.04.2021012012.grb2___
> undef 9.999E+20
> title C:\OpenGrADS-2.2\RawData\pgbf2021012018.04.2021012012.grb2
> *  produced by g2ctl v0.0.3g
> * griddef=1:0:(360 x 181):grid_template=0:winds(N/S): lat-lon 
> grid:(360 x 181) units 1e-06 input WE:NS output WE:SN res 48 lat 
> 90.000000 to -90.000000 by 1.000000 lon 0.000000 to 359.000000 by 
> 1.000000 #points=65160
>
> ydef 181 linear -90.000000 1
> xdef 360 linear 0.000000 1.000000
> tdef 1 linear 18Z20jan2021 1mo
> * PROFILE hPa
> zdef 37 levels 1000 975 950 925 900 875 850 825 800 775 750 700 650 
> 600 550 500 450 400 350 300 250 225 200 175 150 125 100 70 50 30 20 10 
> 7 5 3 2 1
> options template
> vars 97
> no4LFTXsfc  0,1,0   0,7,193 ** surface none Best (4 layer) Lifted 
> Index [K]
> no5WAVA500mb  0,100,50000   0,3,197 ** 500 mb none 5-Wave Geopotential 
> Height Anomaly [gpm]
> no5WAVH500mb  0,100,50000   0,3,193 ** 500 mb none 5-Wave Geopotential 
> Height [gpm]
> ABSVprs   37,100  0,2,10 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Absolute Vorticity [1/s]
> ACPCPsfc  0,1,0   0,1,10,1 ** surface acc Convective Precipitation 
> [kg/m^2]
> APCPsfc  0,1,0   0,1,8,1 ** surface acc Total Precipitation [kg/m^2]
> CAPEsfc  0,1,0   0,7,6 ** surface none Convective Available Potential 
> Energy [J/kg]
> CAPE180_0mb 0,108,18000,0   0,7,6 ** 180-0 mb above ground none 
> Convective Available Potential Energy [J/kg]
> CFRZRsfc  0,1,0   0,1,193,0 ** surface ave Categorical Freezing Rain 
> (yes=1; no=0) [non-dim]
> CICEPsfc  0,1,0   0,1,194,0 ** surface ave Categorical Ice Pellets 
> (yes=1; no=0) [non-dim]
> CINsfc  0,1,0   0,7,7 ** surface none Convective Inhibition [J/kg]
> CIN180_0mb 0,108,18000,0   0,7,7 ** 180-0 mb above ground none 
> Convective Inhibition [J/kg]
> CLWMRprs   32,100  0,1,22 ** (1000 975 950 925 900.. 70 50 30 20 10) 
> none Cloud Mixing Ratio [kg/kg]
> CRAINsfc  0,1,0   0,1,192,0 ** surface ave Categorical Rain (yes=1; 
> no=0) [non-dim]
> CSNOWsfc  0,1,0   0,1,195,0 ** surface ave Categorical Snow (yes=1; 
> no=0) [non-dim]
> CWATclm  0,200,0   0,6,6 ** entire atmosphere (considered as a single 
> layer) none Cloud Water [kg/m^2]
> DPT2m  0,103,2   0,0,6 ** 2 m above ground none Dew Point Temperature [K]
> DPT30_0mb 0,108,3000,0   0,0,6 ** 30-0 mb above ground none Dew Point 
> Temperature [K]
> GPA1000mb  0,100,100000   0,3,9 ** 1000 mb none Geopotential Height 
> Anomaly [gpm]
> GPA500mb  0,100,50000   0,3,9 ** 500 mb none Geopotential Height 
> Anomaly [gpm]
> HGTprs   37,100  0,3,5 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Geopotential Height [gpm]
> HGT2pv  0,109,2e-06   0,3,5 ** PV=2e-06 (Km^2/kg/s) surface none 
> Geopotential Height [gpm]
> HGTneg2pv  0,109,-2e-06   0,3,5 ** PV=-2e-06 (Km^2/kg/s) surface none 
> Geopotential Height [gpm]
> HGTtop0C  0,204,0   0,3,5 ** highest tropospheric freezing level none 
> Geopotential Height [gpm]
> HGT0C  0,4,0   0,3,5 ** 0C isotherm none Geopotential Height [gpm]
> HGTmwl  0,6,0   0,3,5 ** max wind none Geopotential Height [gpm]
> HGTtrop  0,7,0   0,3,5 ** tropopause none Geopotential Height [gpm]
> HLCY3000_0m 0,103,3000,0   0,7,8 ** 3000-0 m above ground none Storm 
> Relative Helicity [m^2/s^2]
> HLCY1000_0m 0,103,1000,0   0,7,8 ** 1000-0 m above ground none Storm 
> Relative Helicity [m^2/s^2]
> LFTXsfc  0,1,0   0,7,192 ** surface none Surface Lifted Index [K]
> NCPCPsfc  0,1,0   0,1,9,1 ** surface acc Large-Scale Precipitation 
> (non-convective) [kg/m^2]
> O3MRprs   37,100  0,14,192 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Ozone Mixing Ratio [kg/kg]
> PLI30_0mb 0,108,3000,0   0,7,0 ** 30-0 mb above ground none Parcel 
> Lifted Index (to 500 mb) [K]
> POTsig995  0,104,0.995   0,0,2 ** 0.995 sigma level none Potential 
> Temperature [K]
> PRESmsl  0,101,0   0,3,0 ** mean sea level none Pressure [Pa]
> PRES2pv  0,109,2e-06   0,3,0 ** PV=2e-06 (Km^2/kg/s) surface none 
> Pressure [Pa]
> PRESneg2pv  0,109,-2e-06   0,3,0 ** PV=-2e-06 (Km^2/kg/s) surface none 
> Pressure [Pa]
> PRESmwl  0,6,0   0,3,0 ** max wind none Pressure [Pa]
> PREStrop  0,7,0   0,3,0 ** tropopause none Pressure [Pa]
> PRMSLmsl  0,101,0   0,3,1 ** mean sea level none Pressure Reduced to 
> MSL [Pa]
> PWAT30_0mb 0,108,3000,0   0,1,3 ** 30-0 mb above ground none 
> Precipitable Water [kg/m^2]
> RHprs   37,100  0,1,1 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Relative Humidity [%]
> RH2m  0,103,2   0,1,1 ** 2 m above ground none Relative Humidity [%]
> RHsg330_1000 0,104,0.33,1   0,1,1 ** 0.33-1 sigma layer none Relative 
> Humidity [%]
> RHsg440_1000 0,104,0.44,1   0,1,1 ** 0.44-1 sigma layer none Relative 
> Humidity [%]
> RHsg720_940 0,104,0.72,0.94   0,1,1 ** 0.72-0.94 sigma layer none 
> Relative Humidity [%]
> RHsg440_720 0,104,0.44,0.72   0,1,1 ** 0.44-0.72 sigma layer none 
> Relative Humidity [%]
> RHsig995  0,104,0.995   0,1,1 ** 0.995 sigma level none Relative 
> Humidity [%]
> RH30_0mb 0,108,3000,0   0,1,1 ** 30-0 mb above ground none Relative 
> Humidity [%]
> RHclm  0,200,0   0,1,1 ** entire atmosphere (considered as a single 
> layer) none Relative Humidity [%]
> RHtop0C  0,204,0   0,1,1 ** highest tropospheric freezing level none 
> Relative Humidity [%]
> RH0C  0,4,0   0,1,1 ** 0C isotherm none Relative Humidity [%]
> SPFHprs   37,100  0,1,0 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Specific Humidity [kg/kg]
> SPFH30_0mb 0,108,3000,0   0,1,0 ** 30-0 mb above ground none Specific 
> Humidity [kg/kg]
> STRMprs   37,100  0,2,4 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Stream Function [m^2/s]
> TMPprs   37,100  0,0,0 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Temperature [K]
> TMP_1829m  0,102,1829   0,0,0 ** 1829 m above mean sea level none 
> Temperature [K]
> TMP_2743m  0,102,2743   0,0,0 ** 2743 m above mean sea level none 
> Temperature [K]
> TMP_3658m  0,102,3658   0,0,0 ** 3658 m above mean sea level none 
> Temperature [K]
> TMP_4572m  0,102,4572   0,0,0 ** 4572 m above mean sea level none 
> Temperature [K]
> TMPsig995  0,104,0.995   0,0,0 ** 0.995 sigma level none Temperature [K]
> TMP30_0mb 0,108,3000,0   0,0,0 ** 30-0 mb above ground none 
> Temperature [K]
> TMP2pv  0,109,2e-06   0,0,0 ** PV=2e-06 (Km^2/kg/s) surface none 
> Temperature [K]
> TMPneg2pv  0,109,-2e-06   0,0,0 ** PV=-2e-06 (Km^2/kg/s) surface none 
> Temperature [K]
> TMPmwl  0,6,0   0,0,0 ** max wind none Temperature [K]
> TMPtrop  0,7,0   0,0,0 ** tropopause none Temperature [K]
> TOZNEclm  0,200,0   0,14,0 ** entire atmosphere (considered as a 
> single layer) none Total Ozone [Dobson]
> UGRDprs   37,100  0,2,2 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> U-Component of Wind [m/s]
> UGRD_1829m  0,102,1829   0,2,2 ** 1829 m above mean sea level none 
> U-Component of Wind [m/s]
> UGRD_2743m  0,102,2743   0,2,2 ** 2743 m above mean sea level none 
> U-Component of Wind [m/s]
> UGRD_3658m  0,102,3658   0,2,2 ** 3658 m above mean sea level none 
> U-Component of Wind [m/s]
> UGRD_4572m  0,102,4572   0,2,2 ** 4572 m above mean sea level none 
> U-Component of Wind [m/s]
> UGRDsig995  0,104,0.995   0,2,2 ** 0.995 sigma level none U-Component 
> of Wind [m/s]
> UGRD30_0mb 0,108,3000,0   0,2,2 ** 30-0 mb above ground none 
> U-Component of Wind [m/s]
> UGRD2pv  0,109,2e-06   0,2,2 ** PV=2e-06 (Km^2/kg/s) surface none 
> U-Component of Wind [m/s]
> UGRDneg2pv  0,109,-2e-06   0,2,2 ** PV=-2e-06 (Km^2/kg/s) surface none 
> U-Component of Wind [m/s]
> UGRDmwl  0,6,0   0,2,2 ** max wind none U-Component of Wind [m/s]
> UGRDtrop  0,7,0   0,2,2 ** tropopause none U-Component of Wind [m/s]
> USTM6000_0m 0,103,6000,0   0,2,194 ** 6000-0 m above ground none 
> U-Component Storm Motion [m/s]
> VGRDprs   37,100  0,2,3 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> V-Component of Wind [m/s]
> VGRD_1829m  0,102,1829   0,2,3 ** 1829 m above mean sea level none 
> V-Component of Wind [m/s]
> VGRD_2743m  0,102,2743   0,2,3 ** 2743 m above mean sea level none 
> V-Component of Wind [m/s]
> VGRD_3658m  0,102,3658   0,2,3 ** 3658 m above mean sea level none 
> V-Component of Wind [m/s]
> VGRD_4572m  0,102,4572   0,2,3 ** 4572 m above mean sea level none 
> V-Component of Wind [m/s]
> VGRDsig995  0,104,0.995   0,2,3 ** 0.995 sigma level none V-Component 
> of Wind [m/s]
> VGRD30_0mb 0,108,3000,0   0,2,3 ** 30-0 mb above ground none 
> V-Component of Wind [m/s]
> VGRD2pv  0,109,2e-06   0,2,3 ** PV=2e-06 (Km^2/kg/s) surface none 
> V-Component of Wind [m/s]
> VGRDneg2pv  0,109,-2e-06   0,2,3 ** PV=-2e-06 (Km^2/kg/s) surface none 
> V-Component of Wind [m/s]
> VGRDmwl  0,6,0   0,2,3 ** max wind none V-Component of Wind [m/s]
> VGRDtrop  0,7,0   0,2,3 ** tropopause none V-Component of Wind [m/s]
> VPOTprs   37,100  0,2,5 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Velocity Potential [m^2/s]
> VSTM6000_0m 0,103,6000,0   0,2,195 ** 6000-0 m above ground none 
> V-Component Storm Motion [m/s]
> VVELprs   37,100  0,2,8 ** (1000 975 950 925 900.. 7 5 3 2 1) none 
> Vertical Velocity (Pressure) [Pa/s]
> VVELsig995  0,104,0.995   0,2,8 ** 0.995 sigma level none Vertical 
> Velocity (Pressure) [Pa/s]
> VWSH2pv  0,109,2e-06   0,2,192 ** PV=2e-06 (Km^2/kg/s) surface none 
> Vertical speed sheer [1/s]
> VWSHneg2pv  0,109,-2e-06   0,2,192 ** PV=-2e-06 (Km^2/kg/s) surface 
> none Vertical speed sheer [1/s]
> VWSHtrop  0,7,0   0,2,192 ** tropopause none Vertical speed sheer [1/s]
> ENDVARS
> @ global String dset 
> C:\OpenGrADS-2.2\RawData\pgbf2021012018.04.2021012012.grb2
> @ global String inventory 
> C:\OpenGrADS-2.2\RawData\pgbf2021012018.04.2021012012.inv
>
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