[gradsusr] Problem matching GRIB data with descriptor file

[Chidzambwa Simba]

I am using Unix. I want to display ACRE GRIB2 data in GRADS Version
2.0.a8 Copyright (c) 1988-2010. The data is for 3 hour
(sflxgrbfgensmean_1931??????_fhr03) and 6hour forecasts
(sflxgrbfgensmean_1931??????_fhr06) based on 6hour time-steps for each
day (00, 06, 12 and 18hrs). I used a template to create a control file
based on "grib2ctl.pl". My control file for 3 hour forecast based on 6
hour time-steps for 1-day looks like this;

"dset
//mnt/acre3/data/ensda_1890/18900101%h2/sflxgrbfgensmean_18900101%h2_fhr
03
index sflxgrbfgensmean_18900101_fhr03.idx
undef 9.999E+20
title sflxgrbfgensmean_18900101_fhr03
*  produced by grib2ctl v0.9.12.5p45
dtype grib 98
options template
options yrev
xdef 192 linear 0.000000 1.875
ydef 94 levels
 -88.542 -86.653 -84.753 -82.851 -80.947 -79.043 -77.139 -75.235 -73.331
-71.426...
tdef 4 linear 00Z1jan1890 6hr
zdef 1 linear 1 1
vars 88
ACONDsfc  0 179,1,0  ** surface Aerodynamic conductance [m/s]
ALBDOsfc  0 84,1,0  ** surface Albedo [%]
ENDVARS"

The output error message I get when I run gribmap is "Time out of
bounds" as below;

[chidzas at pollux simba]$ gribmap -v -i sflxgrbfgensmean_189001_fhr03.ctl
 grib1map:  opening GRIB file:
//mnt/acre3/data/ensda_1890/1890010100/sflxgrbfgensmean_1890010100_fhr03
----- Time out of bounds:      1      27173   0  98     1    0  124 1
0         96   0  btim: 1889123118:00 tau:      3 dtim: 1889123121:00
----- Time out of bounds:      2      54346   0  98     1    0  125 1
0      27269   0  btim: 1889123118:00 tau:      3 dtim: 1889123121:00
----- Time out of bounds:      3      77007   0  98     1    0  122 1
0      54442   0  btim: 1889123118:00 tau:      3 dtim: 1889123121:00
----- Time out of bounds:      4      99668   0  98     1    0  121 1
0      77103   0  btim: 1889123118:00 tau:      3 dtim: 1889123121:00

And "Time non-integral" as below;

grib1map:  opening GRIB file:
//mnt/acre3/data/ensda_1890/1890010106/sflxgrbfgensmean_1890010106_fhr03
----- Time non-integral. 1 1.5:      1      27173   0  98     1    0
124 1              0         96  1724354  btim: 1890010100:00 tau:
3 dtim: 1890010103:00
----- Time non-integral. 1 1.5:      2      54346   0  98     1    0
125 1              0      27269  1724354  btim: 1890010100:00 tau:
3 dtim: 1890010103:00
----- Time non-integral. 1 1.5:      3      77007   0  98     1    0
122 1              0      54442  1724354  btim: 1890010100:00 tau:
3 dtim: 1890010103:00
----- Time non-integral. 1 1.5:      4      97412   0  98     1    0
121 1              0      77103  1724354  btim: 1890010100:00 tau:
3 dtim: 1890010103:00
----- Time non-integral. 1 1.5:      5     133609   0  98     1    0
11 1              0      97508  1724354  btim: 1890010100:00 tau:      3
dtim: 1890010103:00

I suspect it has something to do with definition of the 'TDEF" or the
options I am using or not using with "gribmap". I have no problem with
the 6 hour forecast control files which are matching well. When I
concatenate the files into a single file, it works ok with "gribmap -0"
option  for the 3hr forecast, but no -0 is required for the 6hr forecast
file. Can anyone help? 

Regards
Simba Chidzambwa
Coastal Unit, Dept of Environment, Queensland Australia





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