word coordinates convert to non-integer grid coordinate

[teresa tiberi]

hello,

I open 2 file :

1)
...

dtype grib 255

ydef 197 linear 32.560000 0.18

xdef 272 linear -41.520000 0.280000

tdef 1 linear 00Z14mar2006 1mo

zdef 1 linear 1 1

vars 1

orog 0 148,1,0 **

...

2)

...

dtype grib 255

xdef 272 linear -41.52 0.28

ydef 197 linear 32.56 0.18

tdef 13 linear 00Z19SEP2008 3hr

zdef 9 levels 1000 950 925 850 700 500 400 300 250

vars 19

slp 0 2,102,0 ** Sea Level Pressure

...



but if I try to display variables of file 2 I have this message

"Data request error: invalid grid coordinates

word coordinates convert to non-integer grid coordinate"

may be the problems is z dimension, but how can I solve my problem?

thanks in advance

Teresa
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