Display GRIB data

Yongzuo Li yli at ERC.MSSTATE.EDU
Wed Jun 29 11:22:38 EDT 2005


Hi Wesley,
I followed grib2ctl.pl.beta instruction exactly.
But I got
ga-> d hgtsfc
Notice:  Automatic Grid Interpolation Taking Place
Constant field.  Value = 9.99e+35
ga->

Yongzuo





(1)grib2ctl.pl.beta AWIP3D06.tm00 > nam.ctl
nam.ctl is like
Sulis[48] yli% more nam.ctl
dset ^AWIP3D06.tm00
index ^AWIP3D06.tm00.idx
undef 9.999E+20
title AWIP3D06.tm00
*  produced by grib2ctl v0.9.12.5p33k
dtype grib 212
pdef 185 129 lcc 35.0 -95.0 105 49 25 25 -95 40635 40635
xdef 181 linear -140 0.5
ydef  91 linear  15 0.5
tdef 1 linear 00Z24jun2005 1mo
zdef 26 levels
1000 975 950 925 900 875 850 800 750 700 650 600 550 500 450 400 350 300
275 250 225 200 175 150 100 50
vars 58
no4LFTX180_0mb  0 132,116,46080 ** 180-0 mb above gnd Best (4-layer)
lifted index [K]
ABSVprs  0 41,100,500  ** Absolute vorticity [/s]
ACPCPsfc  0 63,1,0  ** surface Convective precipitation [kg/m^2]

(2)Sulis[50] yli% gribmap -v -i nam.ctl

gribmap:  Scanning binary GRIB file(s):
gribmap:  Opening GRIB file AWIP3D06.tm00
!!!!! MATCH:    1      35892  212  1  0  130  102 0             89
0  12 btim: 2005062400:00 tau:      6 dtim: 2005062406:00
!!!!! MATCH:

ALWAYS has !!!!! MATCH: till
!!!!! MATCH:  190    5166688  212  1  0  63   1 0        5154751
0  4 btim: 2005062400:00 tau:      6 dtim: 2005062406:00
gribmap:  Reached EOF
gribmap:  Writing the map...

(3)ga-> open nam.ctl
Scanning description file:  nam.ctl
Data file AWIP3D06.tm00 is open as file 1
LON set to -140 -50
LAT set to 15 60
LEV set to 1000 1000
Time values set: 2005:6:24:0 2005:6:24:0
Notice: Implied interpolation for file nam.ctl
 Interpolation will be performed on any data displayed from this file
ga-> q file
File 1 : AWIP3D06.tm00
  Descriptor: nam.ctl
  Binary: AWIP3D06.tm00
  Type = Gridded
  Xsize = 181  Ysize = 91  Zsize = 26  Tsize = 1
  Number of Variables = 58
    no4lftx1 0 132 ** 180-0 mb above gnd Best (4-layer) lifted index [K]
    absvprs 0 41 ** Absolute vorticity [/s]
ga-> d hgtsfc
Notice:  Automatic Grid Interpolation Taking Place
Constant field.  Value = 9.99e+35
ga->


Yongzuo

ga-> d tsoilsoi
Notice:  Automatic Grid Interpolation Taking Place
Constant field.  Value = 9.99e+35


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On Wed, 29 Jun 2005, Wesley Ebisuzaki wrote:

> Hi,
>
> Have you tried the current version (0.9.12.5p33k)? It should handle
> missing times whereas the
> version that you are using (April 2001) assumed no missing times.
>
> Wesley Ebisuzaki
>
> dongdong wrote:
>
> > Hi, Everybody
> >
> > I am trying to display GRIB data with GrADS. Please anyone who
> > familiar with this help me.
> >
> > Firstly, I use wgrib to see the data. the wgrib result is in the
> > attchment.
> >
> > Secondly, I use grib2ctl.pl to form the control file.
> >
> > It is:
> >
> > dset f:\grib2ctl\1998_2T.grib
> > index f:\grib2ctl\1998_2T.grib.idx
> > undef 9.999E+20
> > title f:\grib2ctl\1998_2T.grib
> > * produced by grib2ctl v0.9.12.5p32d
> > dtype grib 255
> > options yrev
> > ydef 73 linear -90.000000 2.5
> > xdef 144 linear 0.000000 2.500000
> > tdef 48 linear 00Z01jan1998 6hr
> > zdef 1 linear 1 1
> > vars 1
> > no2Tsfc 0 167,1,0 ** surface 2 metre temperature K
> > ENDVARS
> >
> > Then, I use gribmap to match them. It goes wrong.
> >
> > gribmap -0 -i -v f:\grib2ctl\1998grib.ctl
> >
> > gribmap: Scanning binary GRIB file(s):
> > gribmap: Opening GRIB file f:\grib2ctl\1998_2T.grib
> > !!!!! MATCH: 1 21132 255 1 0 167 1 0 103 0 1
> > btim: 1998010100:00 tau: -999 dtim: 1998010100:00
> > !!!!! MATCH: 2 42264 255 1 0 167 1 0 21235 0 1
> > btim: 1998010106:00 tau: -999 dtim: 1998010106:00
> > !!!!! MATCH: 3 63396 255 1 0 167 1 0 ; 42367 0 1
> > btim: 1998010112:00 tau: -999 dtim: 1998010112:00
> > !!!!! MATCH: 4 84528 255 1 0 167 1 0 63499 0 1
> > btim: 1998010118:00 tau: -999 dtim: 1998010118:00
> > ----- Time out of bounds: 5 105660 255 1 0 167 1 0 &nbbsp; 84631
> > 0 16 btim: 1998020100:00 tau: -999 dtim: 1998020100:00
> > ----- Time out of bounds: 6 126792 255 1 0 167 1 0 105763
> > 0 16 btim: 1998020106:00 tau: -999 dtim: 1998020106:00
> > ----- Time out of bounds: 7 147924 255 1 0 167 1 0 &nb sp; 126895
> > 0 16 btim: 1998020112:00 tau: -999 dtim: 1998020112:00
> > ----- Time out of bounds: 8 169056 255 1 0 167 1 0 &nbbsp; 148027
> > 0 16 btim: 1998020118:00 tau: -999 dtim: 1998020118:00
> > ----- Time out of bounds: 9 190188 255 1 0 167 1 0 169159
> > 0 16 btim: 1998030100:00 tau: -999 dtim: 1998030100:00
> > ----- Time out of bounds: 10 211320 255 1 0 167 1 0 190291
> > 0 16 btim: 1998030106:00 tau: -999 dtim: 1998030106:00
> > -- More --
> >
> > *Only few of the data matched. what's the matter? I have been puzzled
> > by this for a long time. *
> >
> > *Hoping for suggestions.T* * hanks a lot! *
> >
> > * *
> >
> > * Sincerely Dongdong,Chen *
> >
> > __________________________________________________
> > 赶快注册雅虎超大容量免费邮箱?
> > http://cn.mail.yahoo.com
> >
>



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