Errors when open more than 1 file

[Viviane Silva]

Ivan, if your ctl files do not have the same time you
can have problems.

solutions:
1) use the same time for all the ctls (even though you
know they are not the same)
or
1) open 1 file, define a variable then close it. Do
the same with the other files. When defining a
variable, grads keeps it in the memory, so you can
make your sum at the end.

I hope it helps.
Viviane

--- Ivan Toman <ivtoman at INET.HR> wrote:

> Hi!
>
> Does anybody know what could cause these errors
> below. I calculating
> precipitation sum over forecasted period by opening
> all ctl files and
> summing like this
>
> 'd apcpsfc.1 + apcpsfc.2 + apcpsfc.3 +... '
>
> Unfortunately, very often get error like this:
>
> Data Request Error: Invalid grid coordinates
>   World coordinates convert to non-integer grid
> coordinates
>     Variable = apcpsfc.2  Dimension = 3
>   Error ocurred at column 1
> DISPLAY error:  Invalid expression
>   Expression = apcpsfc.2
>
>
> When I try to load files manually and look what
> happen, I found that
> problem should be somwhere here; please look:
>
>
> $ gradsc -b -l
>
> Grid Analysis and Display System (GrADS) Version
> 1.9b4
> Copyright (c) 1988-2005 by Brian Doty and IGES
> Center for Ocean-Land-Atmosphere Studies (COLA)
> Institute for Global Environment and Society (IGES)
> GrADS comes with ABSOLUTELY NO WARRANTY
> See file COPYRIGHT for more information
>
> Config: v1.9b4 32-bit little-endian readline lats
> athena im/image-output
> printim
>
> Issue 'q config' command for more information.
>
> GX Package Initialization: Size = 11 8.5
> Running in Batch mode
> ga-> open
> data/input/gfs.t00z.pgrb2f42.noaa_g2_rc_ci.grib1.ctl
> Scanning description file:
> data/input/gfs.t00z.pgrb2f42.noaa_g2_rc_ci.grib1.ctl
> Data file
> data/input/gfs.t00z.pgrb2f42.noaa_g2_rc_ci.grib1 is
> open as file 1
> LON set to -7 30
> LAT set to 33 60
> LEV set to 1000 1000
> Time values set: 2007:8:31:18 2007:8:31:18
> ga-> open
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1.ctl
> Scanning description file:
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1.ctl
> Data file
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1 is
> open as file 2
> ga-> q files
> File 1 : gfs.t00z.pgrb2f42.noaa_g2_rc_ci.grib1
>   Descriptor:
> data/input/gfs.t00z.pgrb2f42.noaa_g2_rc_ci.grib1.ctl
>   Binary:
> data/input/gfs.t00z.pgrb2f42.noaa_g2_rc_ci.grib1
> File 2 : gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1
>   Descriptor:
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1.ctl
>   Binary:
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1
> ga-> d apcpsfc.1
> Contouring: 0 to 24 interval 2
> ga-> d apcpsfc.2
> Data Request Error: Invalid grid coordinates
>   World coordinates convert to non-integer grid
> coordinates
>     Variable = apcpsfc.2  Dimension = 3
>   Error ocurred at column 1
> DISPLAY error:  Invalid expression
>   Expression = apcpsfc.2
> ga->
>
>
>
> But, it is not problem with
> gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1.ctl
> file, I think. Because of:
>
>
> $ gradsc -b -l
>
> Grid Analysis and Display System (GrADS) Version
> 1.9b4
> Copyright (c) 1988-2005 by Brian Doty and IGES
> Center for Ocean-Land-Atmosphere Studies (COLA)
> Institute for Global Environment and Society (IGES)
> GrADS comes with ABSOLUTELY NO WARRANTY
> See file COPYRIGHT for more information
>
> Config: v1.9b4 32-bit little-endian readline lats
> athena im/image-output
> printim
>
> Issue 'q config' command for more information.
>
> GX Package Initialization: Size = 11 8.5
> Running in Batch mode
> ga-> open
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1.ctl
> Scanning description file:
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1.ctl
> Data file
> data/input/gfs.t00z.pgrb2f48.noaa_g2_rc_ci.grib1 is
> open as file 1
> LON set to -7 30
> LAT set to 33 60
> LEV set to 1000 1000
> Time values set: 2007:9:1:0 2007:9:1:0
> ga-> d apcpsfc
> Contouring: 0 to 11 interval 1
> ga->
>
>
> Can anybody help please. Thank you.
>




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