[gradsusr] CTL forecast in CMC1 model

[Jeff Duda]

GrADS does not recognize 'r4' as a data type. If your data are just
standard Fortran binary, then you do not need to include a DTYPE entry in
your control file. The file extension does not always indicate the data
format or type, and the DTYPE entry does not have to match the file
extension.

Jeff Duda

On Mon, Oct 31, 2016 at 12:44 PM, Carlos Enciso Ojeda <
20071058 at lamolina.edu.pe> wrote:

> Hi everybody
>
> I need your help, with the CTL of SST in format r4, my data calls
> "CMC1.r4", and my CTL is as described below .
>
> dset ^CMC1.r4
> title NMME Monthly Hindcasts; CMC1-CanCM3 Sea Surface Temperature
> Initialized 00Z01JAN2012
> dtype r4
> undef 9.999e+20
> xdef 360 linear 0 1.0
> ydef 61 linear -30.0 1.0
> zdef 1 linear 0 1
> tdef 12 linear 00Z01JAN2015 1mo
> edef 10 names 1 2 3 4 5 6 7 8 9 10
> vars 1
> sst 0 1,e,t,y,x Sea Surface Temperature [C]
> endvars
>
> But, something is wrong with this, the error is as follows
>
> ###########################################
> ga-> open car_cmc1.ctl
> Scanning description file:  car_cmc1.ctl
> Open Error:  Data file type invalid
>   --> The invalid description file record is:
>   --> dtype bin
>  The data file was not opened.
> ###########################################
> BUt when I commented "dtype", the plot of a point, has no sense.
> [image: Imágenes integradas 1]
>
> I don't know if I must attach the data, because is about 12 M. If anyone
> can help me with this one, I'll really appreciate it.
>
> Thanks so much!
>
> 2016-10-27 16:54 GMT-04:00 Jennifer M Adams <jadams21 at gmu.edu>:
>
>> Perhaps these will help — they point to the same URL from IRI’s data
>> server, but describe two different ensemble foreasts. The first is
>> initialized January 2012, the second is initialized in February 2012. The
>> only difference is in the variable declaration (where integers are used
>> instead of letters to specify which array index to use for that
>> coordinate). It might make more sense if you do an ncdump on the URL and
>> examine the metadata.
>> —Jennifer
>>
>>
>> > cat 201201/sst_CMC1-CanCM3.ctl
>> dset http://iridl.ldeo.columbia.edu/SOURCES/.Models/.NMME/.CMC1-
>> CanCM3/.FORECAST/.MONTHLY/.sst/dods
>> title NMME Monthly Hindcasts; CMC1-CanCM3 Sea Surface Temperature
>> Initialized 00Z01JAN2012
>> dtype netcdf
>> undef 9.999e+20
>> xdef 360 linear 0 1
>> ydef 181 linear -90 1
>> zdef 1 linear 0 1
>> tdef 12 linear 00Z01JAN2012 1mo
>> edef 10 names 1 2 3 4 5 6 7 8 9 10
>> vars 1
>> sst 0 1,e,t,y,x Sea Surface Temperature [C]
>> endvars
>>
>>
>> > cat 201202/sst_CMC1-CanCM3.ctl
>> dset http://iridl.ldeo.columbia.edu/SOURCES/.Models/.NMME/.CMC1-
>> CanCM3/.FORECAST/.MONTHLY/.sst/dods
>> title NMME Monthly Hindcasts; CMC1-CanCM3 Sea Surface Temperature
>> Initialized 00Z01FEB2012
>> dtype netcdf
>> undef 9.999e+20
>> xdef 360 linear 0 1
>> ydef 181 linear -90 1
>> zdef 1 linear 0 1
>> tdef 12 linear 00Z01FEB2012 1mo
>> edef 10 names 1 2 3 4 5 6 7 8 9 10
>> vars 1
>> sst 0 2,e,t,y,x Sea Surface Temperature [C]
>> endvars
>>
>> On Oct 27, 2016, at 4:33 PM, Carlos Enciso Ojeda <
>> 20071058 at lamolina.edu.pe> wrote:
>>
>> Hi everybody
>>
>> I have a set of data from the IRI database, for a period of 12 months.
>> Each data has 10 members and 12 leads, so I need your help in order to
>> create the CTL.
>>
>> I'd appreciate any help that you can give me for this topic.
>>
>>
>> Thanks so much!
>> _______________________________________________
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>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>> --
>> Jennifer Miletta Adams
>> Center for Ocean-Land-Atmosphere Studies (COLA)
>> George Mason University
>>
>>
>>
>>
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>>
>
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>


-- 
Jeff Duda
Post-doctoral research associate
University of Oklahoma School of Meteorology
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