Native ETA Grid in GRADS

Iain Russell irussell30 at COGECO.CA
Thu Mar 17 18:54:07 EST 2005


Hi  Brendan

AWIPS grid 218 is the output grid for the NAM (formerly ETA) model at 12km
resolution. Files are available for download here ;

http://www.nco.ncep.noaa.gov/pmb/products/nam/

where you can also get a definition of the grid domain. Hope that helps...

Regards
Iain


----- Original Message -----
From: "Brendan Murphy" <murphyb at UNBC.CA>
To: <GRADSUSR at LIST.CINECA.IT>
Sent: Thursday, March 17, 2005 4:42 PM
Subject: Re: Native ETA Grid in GRADS


> Sorry, I misunderstood and don't have such pdef file.  Perhaps the
> following source code could be modified?
>
>   http://nomad1.ncep.noaa.gov/DOC/g218.f
>
> Is the dashed line the "native" grid, or a "parent" grid?  It looks like
> the ETA-90km grid.  Is ETA output at a 12-km resolution available to the
> public either in real-time or in an archive for the coverage indicated by
> the dashed line?  Residing in northern BC, I'd be interested in such
data...
>
> Thanks,
>
> - Brendan
>
>  On Thu, 17 Mar 2005, Charles J. Alonge wrote:
>
> > Brendan,
> >
> >    Many thanks, this works well!  However, I would like to be able to
> > plot the native
> > domain in GrADS as well.  See attached JPG.  Grid 218 is the post
processed
> > grid.  I would like to be able to display both in GrADS.   Thanks again
for
> > all of your support.
> >
> > Chuck
> >
> > Brendan Murphy wrote:
> >
> > >Hi Charles,
> > >
> > >See the attached for a sample control file and the pdef file you are
> > >looking for...
> > >
> > >- Brendan
> > >
> > >On Thu, 17 Mar 2005, Charles J. Alonge wrote:
> > >
> > >
> > >
> > >>Hello all,
> > >>
> > >>    Does anyone on the list know how do plot the native ETA (12-km)
> > >>Arakawa-E grid in GrADS?  Or better yet, does anyone have a PDEF
> > >>file that will do the trick?  Thanks in advance for any help
> > >>you may be able to provide.
> > >>
> > >>Chuck
> > >>
> > >>--
> > >>
> > >>Charles J. Alonge
> > >>NASA Goddard Space Flight Center - SAIC
> > >>Hydrological Sciences Branch
> > >>NASA-GSFC Mail Code 614.3
> > >>Greenbelt, MD 20771
> > >>
> > >>
> > >>
> >
>>------------------------------------------------------------------------
> > >>
> > >>(^meso-eta-hi_218_[0-9]+[0-9])(_...._)(fff\.|000\.)
> > >>
> > >>
> >
>>------------------------------------------------------------------------
> > >>
> > >>DSET ^meso-eta-hi_218_20040715_%h4_000.grb
> > >>INDEX ^meso-eta-hi_218_20040715_0000_fff.idx
> > >>undef 9.999E+20
> > >>options template
> > >>title ETA 00Z cycle - Analysis and 3 hour forecasts staring
00Z15jul2004
> > >>*
> > >>dtype grib 218
> > >>*pdef 614 428 lcc 12.190000 -133.459000 1 1 25.000000
25.000000 -95.000000 12191 12191
> > >>*xdef 614 linear -133.459000 0.113383763365335
> > >>*ydef 428 linear 12.190000 0.110827272727273
> > >>*
> > >>pdef 614 428 bilin sequential binary ^grid.218.pdef
> > >>xdef 700 linear  -140 0.11
> > >>ydef 500 linear   12 0.11
> > >>*
> > >>tdef 4 linear 00Z15jul2004 6hr
> > >>zdef 39 levels
> > >>1000 975 950 925 900 875 850 825 800 775 750 725 700 675 650 625 600
575 550 525 500 475 450 425 400 375 350 325 300 275 250 225 200 175 150 125
100 75 50
> > >>*
> > >>*
> > >>vars 140
> > >>ACPCPsfc  0 63,1,0        ** surface Convective precipitation [kg/m^2]
> > >>APCPsfc  0 61,1,0         ** surface Total precipitation [kg/m^2]
> > >>no4LFTX180_0mb  0 132,116,46080 ** 180-0 mb above gnd Best (4-layer)
lifted index [K]
> > >>BMIXLhbl  0 226,109,1     ** Blackadar's mixing length scale [m]
> > >>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]
> > >>CDsfc  0 252,1,0          ** surface Drag coefficient [non-dim]
> > >>DLWRFsfc  0 205,1,0       ** surface Downward long wave flux [W/m^2]
> > >>DSWRFsfc  0 204,1,0       ** surface Downward short wave flux [W/m^2]
> > >>FRICVsfc  0 253,1,0       ** surface Friction velocity [m/s]
> > >>HGTsfc  0 7,1,0           ** surface Geopotential height [gpm]
> > >>HGTprs 39 7,100,0         ** Geopotential height [gpm]
> > >>LANDsfc  0 81,1,0         ** surface Land cover (land=1;sea=0)
[fraction]
> > >>LHTFLsfc  0 121,1,0       ** surface Latent heat flux [W/m^2]
> > >>MSLETmsl  0 130,102,0     ** Mean sea level pressure (ETA model) [Pa]
> > >>PLI30_0mb  0 24,116,7680  ** 30-0 mb above gnd Parcel lifted index (to
500 hPa) [K]
> > >>PRESsfc  0 1,1,0          ** surface Pressure [Pa]
> > >>PRMSLmsl  0 2,102,0       ** Pressure reduced to MSL [Pa]
> > >>RHprs 39 52,100,0         ** Relative humidity [%]
> > >>RH2m  0 52,105,2          ** 2 m Relative humidity [%]
> > >>RHplg 5 52,116,0          ** Relative humidity [%]
> > >>SFCRsfc  0 83,1,0         ** surface Surface roughness [m]
> > >>SHTFLsfc  0 122,1,0       ** surface Sensible heat flux [W/m^2]
> > >>SOILWSoilT  0 144,112,10  ** 0-10cm undergnd Volumetric soil moisture
[fraction]
> > >>SOILWdlr   3 144,112,0    ** Volumetric soil moisture [fraction]
> > >>TSOIL10cm  0 85,112,10    ** 0-10 cm undergnd Soil temp. [K]
> > >>TSOIL40cm  0 85,112,2600  ** 10-40 cm underground Soil Temp. [K}
> > >>TSOIL100cm 0 85,112,10340 ** 40-100 cm underground Soil Temp. [K]
> > >>TSOIL200cm 0 85,112,25800 ** 100-200 cm underground Soil Temp. [K]
> > >>TSOIL300cm 0 85,111,300   ** 300 cm underground Soil Temp. [K]
> > >>SOILW40cm  0 144,112,2600 ** 10-40 cm underground Volumetric soil
moisture [fraction]
> > >>SOILW100cm 0 144,112,10340 ** 40-100 cm underground Volumetric soil
moisture [fraction]
> > >>SOILW200cm 0 144,112,25800 ** 100-200 cm underground Volumetric soil
moisture [fraction]
> > >>MSTAV100cm 0 207,112,100   ** Moisture availability [%]
> > >>SOILM200cm 0 86,112,200    ** Soil moisture content [kg/m^2]
> > >>CNWAT      0 223,1,0       ** Plant canopy surface water [kg/m^2]
> > >>VEG        0 87,1,0        ** Vegetation [%]
> > >>TMP60mb    0 11,116,15390  ** 60-30 mb above ground Air Temperature
[K]
> > >>TMP90mb    0 11,116,23100  ** 90-60 mb above ground Air Temperature
[K]
> > >>TMP120mb   0 11,116,30810  ** 120-90 mb above ground Air Temperature
[K]
> > >>TMP150mb   0 11,116,38520  ** 150-120 mb above ground Air Temperature
[K]
> > >>TMP180mb   0 11,116,46230  ** 180-150 mb above ground Air Temperature
[K]
> > >>RH30_0mb   0 52,116,7680   ** 30-0 mb above gnd Relative humidity [%]
> > >>RH60mb     0 52,116,15390  ** 60-30 mb above ground Relative Humidity
[%]
> > >>RH90mb     0 52,116,23100  ** 90-60 mb above ground Relative Humidity
[%]
> > >>RH120mb    0 52,116,30810  ** 120-90 mb above ground Relative Humidity
[%]
> > >>RH150mb    0 52,116,38520  ** 150-120 mb above ground Relative
Humidity [%]
> > >>RH180mb    0 52,116,46230  ** 180-150 mb above ground Relative
Humidity [%]
> > >>UGRD30_0mb 0 33,116,7680   ** 30-0 mb above gnd u wind [m/s] (hidden)
> > >>U60mb      0 33,116,15390  ** 60-30 mb above ground U-Wind [m/s]
> > >>U90mb      0 33,116,23100  ** 90-60 mb above ground U-Wind [m/s]
> > >>U120mb     0 33,116,30810  ** 120-90 mb above ground U-Wind [m/s]
> > >>U150mb     0 33,116,38520  ** 150-120 mb above ground U-Wind [m/s]
> > >>U180mb     0 33,116,46230  ** 180-150 mb above ground U-Wind [m/s]
> > >>VGRD30_0mb 0 34,116,7680   ** 30-0 mb above gnd v wind [m/s] (hidden)
> > >>V60mb      0 34,116,15390  ** 60-30 mb above ground V-Wind [m/s]
> > >>V90mb      0 34,116,23100  ** 90-60 mb above ground V-Wind [m/s]
> > >>V120mb     0 34,116,30810  ** 120-90 mb above ground V-Wind [m/s]
> > >>V150mb     0 34,116,38520  ** 150-120 mb above ground V-Wind [m/s]
> > >>V180mb     0 34,116,46230  ** 180-150 mb above ground V-Wind [m/s]
> > >>WEASD    0 65,1,0    ** Surface Snow Accumulation [kg/m^2]
> > >>SNOD     0 66,1,0    ** Surface Snow Depth [m]
> > >>CSUSF    0 160,112,10     ** 10-0 cm down Clear sky upward solar flux
[W/m^2]
> > >>CSUSF40  0 160,112,2600   ** 40-10 cm down Clear sky upward solar flux
[W/m^2]
> > >>CSUSF100 0 160,112,10340  ** 100-40 cm down Clear sky upward solar
flux [W/m^2]
> > >>CSUSF200 0 160,112,25800  ** 200-100 cm down Clear sky upward solar
flux [W/m^2]
> > >>SNMR     0 171,1,0   ** sfc Snow Mixing Ratio [Kg/Kg]
> > >>TSD1D    0 219,1,0   ** Std. dev. of IR T over 1x1 deg area [K]
> > >>WAVH     0 222,1,0   ** -5-wave geopotential height [gpm]
> > >>SOTYP    0 224,1,0   ** Soil type (Zobler) [0..9]
> > >>VGTYP    0 225,1,0   ** Vegetation type (as in SiB) [0..13]
> > >>n5WAVA   0 230,1,0   ** -5-wave geopot. height anomaly [gpm]
> > >>MFLUX    0 231,1,0   ** Convective cloud mass flux [Pa/s]
> > >>SNOWC    0 238,1,0   ** Snow cover [%]
> > >>ICEC     0 91,1,0    ** Ice concentration (ice=1;no ice=0) [fraction]
> > >>ALBDO    0 84,1,0    ** Albedo [%]
> > >>LWper    0 240,1,0   ** Land/Water Coverage (0=Water, 1=Land)
[fraction]
> > >>TKEprs 39 158,100,0      ** Turbulent Kinetic energy [J/kg]
> > >>TMPsfc  0 11,1,0         ** surface Temp. [K]
> > >>TMPprs 39 11,100,0       ** Temp. [K]
> > >>TMP2m  0 11,105,2        ** 2 m Temp. [K]
> > >>TMP30_0mb  0 11,116,7680 ** 30-0 mb above gnd Temp. [K]
> > >>TMPplg 5  11,116,0       ** Temp. [K]
> > >>TSOILdlr  3 85,112,0     ** Soil temp. [K]
> > >>UGRDprs   39 33,100,0    ** u wind [m/s] (hidden)
> > >>ULWRFsfc  0 212,1,0      ** surface Upward long wave flux [W/m^2]
> > >>USWRFsfc  0 211,1,0      ** surface Upward short wave flux [W/m^2]
> > >>VGRDprs   39 34,100,0    ** v wind [m/s] (hidden)
> > >>UGRDplg   5 33,116,0     ** u wind [m/s] (hidden)
> > >>VGRDplg   5 34,116,0     ** v wind [m/s] (hidden)
> > >>UGRD10m   0 33,105,10      ** 10 m u wind [m/s] (hidden)
> > >>VGRD10m   0 34,105,10      ** 10 m v wind [m/s] (hidden)
> > >>VVELprs    39 39,100,0     ** Pressure vertical velocity [Pa/s]
> > >>ABSV       39 41,100,0     ** Absolute Vorticity [1/s]
> > >>HLCY3000   0 190,106,30,0  ** 0-3000 m Storm relative helicity
[m^2/s^2]
> > >>PRESMWIND  0 1,6,0         ** Pressure at max wind level [Pa]
> > >>UMWIND     0 33,6,0        ** U-Wind on max wind level [m/s]
> > >>VMWIND     0 34,6,0        ** V-Wind on max wind level [m/s]
> > >>PRESTROP   0 1,7,0         ** Pressure at Tropopause [Pa]
> > >>TMPTROP    0 11,7,0        ** Temp. at Tropopause [K]
> > >>UTROP      0 33,7,0        ** U-Wind on Tropopause [m/s]
> > >>VTROP      0 34,7,0        ** V-Wind on Tropopause [m/s]
> > >>HGTSFC     0 7,245,0       ** Geopotential Height of Surface [gpm]
> > >>ABSV       39 41,100,0     ** Absolute Vorticity [1/s]
> > >>VIS        0 20,1,0        ** Surface Visibility [m]
> > >>PWATACOL   0 54,200,0      ** Atmospheric Column Precipitable Water
[kg/m^2]
> > >>HGT0DEG    0 7,4,0         ** Geopotential Height on 0 deg. Isotherm
[gpm]
> > >>RH0DEG     0 52,4,0        ** Relative Humidity on 0 deg. Isotherrm
[%]
> > >>RHsig4     0 52,108,33,100 ** Relative Humidity : sigma 0.33 to 1.00
[%]
> > >>oCSNOW     0 143,1,0    ** surface Categorical snow [yes=1;no=0]
(hidden)
> > >>oCICEP     0 142,1,0    ** surface Categorical ice pellets
[yes=1;no=0] (hidden)
> > >>oCFRZR     0 141,1,0    ** surface Categorical freezing rain
[yes=1;no=0] (hidden)
> > >>oCRAIN     0 140,1,0    ** surface Categorical rain [yes=1;no=0]
(hidden)
> > >>WEASD      0 65,1,0     ** surface Accum. snow [kg/m^2]
> > >>SNOD       0 66,1,0     ** Surface Snow Depth [m]
> > >>SNOWC      0 238,1,0    ** Surface Area Snow cover [%]
> > >>CIN        0 156,1,0    ** surface Convective inhibition [J/kg]
> > >>CIN180_0mb 0 156,116,180,0  ** 180-0 mb above gnd Convective
inhibition [J/kg]
> > >>LFTX       0 131,101,50,100 ** 500-1000 Lifted Index [K]
> > >>oTCDCclm   0 71,200,0       ** atmos column Total cloud cover [%]
> > >>CSUSF10    0 160,112,0,10   ** 0-10 cm down - Clear sky upward solar
flux [W/m^2]
> > >>CSUSF40    0 160,112,10,40  ** 10-40 cm down - Clear sky upward solar
flux [W/m^2]
> > >>CSUSF100   0 160,112,40,100  ** 40-100 cm down - Clear sky upward
solar flux [W/m^2]
> > >>CSUSF200   0 160,112,100,200 ** 100-200 cm down - Clear sky upward
solar flux [W/m^2]
> > >>SNMR       0 171,1,0       ** Snow mixing ratio [kg/kg]
> > >>TSD1D      0 219,1,0       ** Std. dev. of IR T over 1x1 deg area [K]
> > >>n5WAVH     0 222,0         ** Surface 5-wave geopotential height [gpm]
> > >>anom5WAVA  0 230,1,0       ** Surface 5-wave geopot. height anomaly
[gpm]
> > >>SOTYP      0 224,1,0       ** Soil type (Zobler) [0..9]
> > >>VGTYP      0 225,1,0       ** Vegetation type (as in SiB) [0..13]
> > >>MFLUX      0 231,1,0       ** Convective cloud mass flux [Pa/s]
> > >>ICEC       0 91,1,0        ** surface Ice concentration (ice=1;no
ice=0)
> > >>TSOIL300   0 85,111,1,44   ** 300 cm Underground Soil temp. [K]
> > >>MSTAV      0 207,112,0,100 ** 0-100 cm below sfc. Moisture
availability [%]
> > >>SOILM      0 86,112,0,200  ** 0-200 cm below sfc. Soil moisture
content [kg/m^2]
> > >>CNWAT      0 223,1,0       ** Plant canopy surface water [kg/m^2]
> > >>VEG        0 87,1,0        ** Vegetation [%]
> > >>ALBDO      0 84,1,0        ** Surface Albedo [%]
> > >>GUST       0 180,1,0       ** Surface Wind Gust [m/s]
> > >>COVTW      0 240,1,0       ** Covarience between T and W-wind [
[wT]-[w][T] ]
> > >>ENDVARS
> > >>* CUSTOM FUNCTIONS
> > >>*
> > >>* function:isotach (m/s):39:mag(ugrdprs,vgrdprs):wind speed (m/s)
> > >>*
> > >>* plot:winds:39:isotachs (m/s) and wind vectors
> > >>* title:winds:isotachs (m/s) $_level mb $_dayofweek $_hour
$_day$_month$_year
> > >>* display:winds:set gxout shaded
> > >>* display:winds:d mag(UGRDprs,VGRDprs)
> > >>* display:winds:run /usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds:set ccolor 98
> > >>* display:winds:run /usr/local/grads/grads-1.8sl11/bin/grads/d_uv.gs
ugrdprs vgrdprs
> > >>*
> > >>* plot:winds 10m:1:10 meter isotachs (m/s) and wind vectors
> > >>* title:winds 10m:10 m isotachs (m/s) $_dayofweek $_hour
$_day$_month$_year
> > >>* display:winds 10m:set gxout shaded
> > >>* display:winds 10m:d mag(UGRD10m,VGRD10m)
> > >>* display:winds 10m:run /usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds 10m:set ccolor 98
> > >>* display:winds 10m:run /usr/local/grads/grads-1.8sl11/bin/d_uv.gs
ugrd10m vgrd10m
> > >>*
> > >>* plot:winds B/W:39:isotachs (m/s) and wind vectors
> > >>* title:winds B/W:isotachs (m/s) $_level mb $_dayofweek $_hour
$_day$_month$_year
> > >>* display:winds B/W:set ccolor 98
> > >>* display:winds B/W:set gxout contour
> > >>* display:winds B/W:d mag(UGRDprs,VGRDprs)
> > >>* display:winds B/W:run /usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds B/W:set ccolor 98
> > >>* display:winds B/W:run /usr/local/grads/grads-1.8sl11/bin/d_uv.gs
ugrdprs vgrdprs
> > >>*
> > >>* plot:winds 10m B/W:1:10 meter isotachs (m/s) and wind vectors
> > >>* title:winds 10m B/W:10 m isotachs (m/s) $_dayofweek $_hour
$_day$_month$_year
> > >>* display:winds 10m B/W:set ccolor 98
> > >>* display:winds 10m B/W:set gxout contour
> > >>* display:winds 10m B/W:d mag(UGRD10m,VGRD10m)
> > >>* display:winds 10m B/W:run
/usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds 10m B/W:set ccolor 98
> > >>* display:winds 10m B/W:run /usr/local/grads/grads-1.8sl11/bin/d_uv.gs
ugrd10m vgrd10m
> > >>*
> > >>* plot:winds (knots):39:isotachs (knots) and wind vectors
> > >>* title:winds (knots):isotachs (knot) $_level mb $_dayofweek $_hour
$_day$_month$_year* display:winds (knots):set gxout shaded
> > >>* display:winds (knots):d mag(UGRDprs,VGRDprs)*1.94254
> > >>* display:winds (knots):run
/usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds (knots):set ccolor 98
> > >>* display:winds (knots):run /usr/local/grads/grads-1.8sl11/bin/d_uv.gs
ugrdprs*1.94254 vgrdprs*1.94245
> > >>*
> > >>* plot:winds 10m (knots):1:10 meter isotachs (knots) and wind vectors
> > >>* title:winds 10m (knots):10 m isotachs (knot) $_dayofweek $_hour
$_day$_month$_year
> > >>* display:winds 10m (knots):set gxout shaded
> > >>* display:winds 10m (knots):d mag(UGRD10m,VGRD10m)*1.94254
> > >>* display:winds 10m (knots):run
/usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds 10m (knots):set ccolor 98
> > >>* display:winds 10m (knots):run
/usr/local/grads/grads-1.8sl11/bin/d_uv.gs ugrd10m*1.94254 vgrd10m*1.94245
> > >>*
> > >>* plot:winds B/W (knots):39:isotachs (knots) and wind vectors
> > >>* title:winds B/W (knots):isotachs (knot) $_level mb $_dayofweek
$_hour $_day$_month$_year
> > >>* display:winds B/W (knots):set ccolor 98
> > >>* display:winds B/W (knots):set gxout contour
> > >>* display:winds B/W (knots):d mag(UGRDprs,VGRDprs)*1.94254
> > >>* display:winds B/W (knots):run
/usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds B/W (knots):set ccolor 98
> > >>* display:winds B/W (knots):run
/usr/local/grads/grads-1.8sl11/bin/d_uv.gs ugrdprs*1.94254 vgrdprs*1.94245
> > >>*
> > >>* plot:winds 10m B/W (knots):1:10 meter isotachs (knots) and wind
vectors
> > >>* title:winds 10m B/W (knots):10 m isotachs (knot) $_dayofweek $_hour
$_day$_month$_year
> > >>* display:winds 10m B/W (knots):set ccolor 98
> > >>* display:winds 10m B/W (knots):set gxout contour
> > >>* display:winds 10m B/W (knots):d mag(UGRD10m,VGRD10m)*1.94254
> > >>* display:winds 10m B/W (knots):run
/usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:winds 10m B/W (knots):set ccolor 98
> > >>* display:winds 10m B/W (knots):run
/usr/local/grads/grads-1.8sl11/bin/d_uv.gs ugrd10m*1.94254 vgrd10m*1.94245
> > >>*
> > >>*
> > >>* Temperature Advection
> > >>*
> > >>* plot:tadv:29:Horizontal Temperature Advection [K/hr]
> > >>* title:tadv:Horizontal Temperature Advection [K/hr]
> > >>* display:tadv:define dtx = cdiff(TMPprs,x)
> > >>* display:tadv:define dty = cdiff(TMPprs,y)
> > >>* display:tadv:define dx = cdiff(lon,x)*3.1416/180
> > >>* display:tadv:define dy = cdiff(lat,y)*3.1416/180
> > >>* display:tadv:set cint 0.25
> > >>* display:tadv:set cmin -4
> > >>* display:tadv:set cmax 4
> > >>* display:tadv:display 3600 * (-1*(
(UGRDprs*dtx)/(cos(lat*3.1416/180)*dx) + VGRDprs*dty/dy )/6.37e6)
> > >>* display:tadv:run /usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>*
> > >>* Wind convergence
> > >>*
> > >>* plot:conv:29:Horizontal Convergence [100000/s]
> > >>* title:conv:Horizontal Convergence [100000/s]
> > >>* display:conv:define diverg = hdivg(UGRDprs,VGRDprs)
> > >>* display:conv:set cint 1
> > >>* display:conv:display -100000 * diverg
> > >>* display:conv:run /usr/local/grads/grads-1.8sl11/bin/cbar98.gs
> > >>* display:conv:set gxout vector
> > >>* display:conv:set rgb 98 1 1 1
> > >>* display:conv:set ccolor 98
> > >>* display:conv:display skip(UGRDprs,4);skip(VGRDprs,4)
> > >>*
> > >>* End of custom expressions
> > >>
> > >>
> >
> > --
> >
> > Charles J. Alonge
> > NASA Goddard Space Flight Center - SAIC
> > Hydrological Sciences Branch
> > NASA-GSFC Mail Code 614.3
> > Greenbelt, MD 20771
> >
> >



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