Dumping a GRIB file using lats4d

Ernani de Lima Nascimento elnascimento at UFPR.BR
Tue Sep 18 05:04:43 EDT 2007


Hello Arlindo,
I downloaded the newest version of lats4d, but the problem persists. I
also tried it by specifying the -freq option. Then I tried the example
with model.ctl. This last one works fine for both stream and grads_grib
options, but the same error message appears for grib.

Thus, a more **basic** question is: do I need to build the LATS library in
my machine, or is everything self-contained in the GRADS distribution for
running lats4d? The URLs that I've found for downloading the LATS library
are outdated.

Thanks again!
Ernani

> Hi,
>
> lats4d: Version 1.3 of 16 June 2000
>
> This is old. Can you try the latest? Search the list for URL...
>
>      Arlindo
>
> On 9/17/07, Ernani de Lima Nascimento <elnascimento at ufpr.br> wrote:
>> Hello,
>> Probably this has been discussed before, but here is the problem I am
>> facing:
>>
>> With GRADSv1.8 I generate a binary file using the "gxout fwrite" option,
>> and the content of this binary file is just fine (I create an
>> appropriate
>> .ctl for it). Now, from this binary file -- which, as a test, contains a
>> simple divergence field -- I want to generate a GRIB file using the
>> lats4d
>> script.
>>
>> The command line I am using is:
>> lats4d -v -i test_hdivg -o filename_grib -format grib -table table_test
>>
>> (I have created a parameter file called "table_test", but the same error
>> message appears when I use -table @my.table or -table =, or when I
>> simply
>> drop -table altogether)
>>
>> From which I get:
>>
>> GX Package Initialization: Size = 11 8.5
>> Running in Batch mode
>> lats4d: Version 1.3 of 16 June 2000
>> No hardcopy metafile open
>> All files closed; all defined objects released
>> All GrADS attributes have been reinitialized
>> lats4d: Data file is
>> File 1 : test_hdivg
>>   Descriptor: test_hdivg.ctl
>>   Binary: test_hdivg.bin
>>   Type = Gridded
>>   Xsize = 101  Ysize = 51  Zsize = 1  Tsize = 1
>>   Number of Variables = 1
>>     div10 0 0  velocity divergence [1/s]
>> lats4d: Dimension environment file same as data file
>> SET LATS CONVENTION error:  invalid argument using the default...
>> lats4d: not really, we stop right here
>> lats4d: error creating grib file filename_grib.grb
>> lats4d: exiting from GrADS...
>> No hardcopy metafile open
>> GX package terminated
>>
>>
>> The "SET LATS CONVENTION error" always shows up. In contrast, when
>> running
>> lats4d to generate a "grads_grib" file from the very same binary file,
>> then it works fine. I am afraid there might be several possible sources
>> for this type of error. I would appreciate if you could provide me with
>> some orientation to sort this out. Sorry if this question has been
>> answered before. Thanks!
>>
>> Regards!
>> Ernani Nascimento
>>
>
>
> --
> Arlindo da Silva
> dasilva at alum.mit.edu
>



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