[gradsusr] descriptor file (skip to read data)

[Jennifer Adams]

You can't skip times between hour 14 and 23 and still draw a 10-day time series with no gaps. If you don't want to include the data from hour 14-23, move those files to another folder so GraDS will treat them as missing data. Then you can draw the 10 days, but you will have gaps for the missing hours. --Jennifer



On Apr 18, 2012, at 8:12 PM, wendi harjupa wrote:

> thank you very much Jennifer..
> 
> But, I am sorry, can you describe me more about it please....
> because If I want to make plot for 10 days, then I have to make 10 more descriptor file, and how to make link between them?? to make 10 days time series data...
> 
> best regards,
> 
> On Wed, Apr 18, 2012 at 11:03 PM, Jennifer Adams <jma at cola.iges.org> wrote:
> You will have to make separate descriptors for each half-day. GrADS does not allow a non-linear time axis; the interval between each time step must be the same.
> --Jennifer
> 
> 
> On Apr 17, 2012, at 9:03 PM, wendi harjupa wrote:
> 
>> Dear Sir/Madam
>> 
>> I need help to read Radar data..
>> 
>> Here is the file ctl of data
>> 
>> DSET  1013.dat
>> TITLE  RADAR
>> OPTIONS  LITTLE_ENDIAN
>> UNDEF  -1000
>> XDEF    321 LINEAR    99.688120996    0.004492369
>> YDEF    321 LINEAR    -1.083708891    0.004522556
>> ZDEF    39  LINEAR   1.0 0.5
>> TDEF    15 LINEAR  00:00Z10apr2004  4mn
>> VARS    2
>> ref 39  99  Reflectivity(dBZ)
>> vel 39  99  Doppler Velocity(m/s)
>> ENDVARS
>> 
>> 
>> I can make time series data for 13 days by using the descriptor data below :
>> 
>> DSET /misc/home/wendi/data1/radar/kototabang/XDR/data/%y4%m2%d2/%d2%h2.dat
>> TITLE  RADAR
>> OPTIONS  TEMPLATE LITTLE_ENDIAN
>> UNDEF  -1000
>> XDEF    321 LINEAR    99.688120996    0.004492369
>> YDEF    321 LINEAR    -1.083708891    0.004522556
>> ZDEF    39  LINEAR   1.0 0.5
>> TDEF    3600 LINEAR 00:00Z10apr2004  4mn 
>> VARS    2
>> ref 39  99  Reflectivity(dBZ)
>> vel 39  99  Doppler Velocity(m/s)
>> ENDVARS
>> 
>> As you see, one day data put in one folder (%y4%m2%d2), and each folder contain 24 hour data (%d2%h2)
>> 
>> The question is, if I  want to make time series data just for half day (from 00.00 - 13.00) , and I want to skip from 14.00 - 23.00
>> and contunue to read from 00.00 - 13.00 in the next day, what I have to do with my descriptor file??
>> 
>> Thank you very much for your help in advance..
>> 
>> Best regards,
>> wendi
>> 
>> -- 
>> -------------
>> Wendi Harjupa. ST                                            
>> Shimane University Graduate School of Engineering Sciences
>> Department of Electronic Control Systems
>> Remote Sensing Laboratory
>> s119447
>> Cellphone : +81-080-4268-6676
>> email : wendi at rslab.riko.shimane-u.ac.jp
>> 
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> 
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
> 
> 
> 
> 
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> 
> 
> 
> -- 
> -------------
> Wendi Harjupa. ST                                            
> Shimane University Graduate School of Engineering Sciences
> Department of Electronic Control Systems
> Remote Sensing Laboratory
> s119447
> Cellphone : +81-080-4268-6676
> email : wendi at rslab.riko.shimane-u.ac.jp
> 
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> gradsusr mailing list
> gradsusr at gradsusr.org
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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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