GRIB file problems
Sandro Raolil
alessandro.raolil at CMCC.IT
Tue Oct 20 11:05:33 EDT 2009
Hi all,
I have some problems to display GRIB files with GrADS.
i know this is a known problem, but pheraphs someone could have some news.
I have 2 GRIB file (Grib 1 version) and using grib2ctl and gribmap (both
directly and after copygb trasformation) I'm not able to plot with GrADS
correctly.
The first file, with command "wgrib -d 1 -V LF.grb", display:
rec 1:34:date 2009071812 UGRD kpds5=33 kpds6=100 kpds7=70 levels=(0,70)
grid=41 70 mb 12hr fcst:
UGRD=u wind [m/s]
timerange 0 P1 12 P2 0 TimeU 1 nx -1 ny 73 GDS grid 0 num_in_ave 0
missing 0
center 74 subcenter 0 process 45 Table 2
thinned latlon: lat -90.000000 to 0.000000 by 1.250000 nxny 3447
long -30.000000 to 60.000000, 3447 grid pts (-1 x 73) scan 64
mode 128 bdsgrid 1
2 3 5 6 8 9 11 12 14 16 17 19 20 22
23
25 26 28 29 30 32 33 35 36 38 39 40 42 43
44
45 47 48 49 50 51 52 54 55 56 57 58 59 60
60
61 62 63 64 65 65 66 67 67 68 69 69 70 70
71
71 71 72 72 72 73 73 73 73 73 73 73 73
min/max data -8.53127 57.8437 num bits 10 BDS_Ref -8.53127 DecScale 0
BinScale -3
The second file, with command "wgrib -d 1 -V YM.grb", display:
grib header at record 1: two values of nxny 26331 21275
LEN 31928 DataStart 14 UnusedBits 11 #Bits 12 nxny 26331
rec 1:0:date 2009071812 GP kpds5=6 kpds6=100 kpds7=950 levels=(3,182)
grid=255 950 mb 9hr fcst:
GP=Geopotential [m^2/s^2]
timerange 0 P1 9 P2 0 TimeU 1 nx 21275 ny 1 GDS grid 0 num_in_ave 0
missing 0
center 85 subcenter 0 process 211 Table 1
latlon: lat 65.000000 to 0.000000 by 0.500000 nxny 21275
long -30.000000 to 70.000000 by 0.500000, (21275 x 1) scan 0
mode 128 bdsgrid 1
min/max data 3016.1 7111.1 num bits 12 BDS_Ref 3016.1 DecScale 0
BinScale 0
Any suggestions?
Thanks
Sandro
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