[gradsusr] the different between averaging dan time series

wendi harjupa wendiharjupa at gmail.com
Wed Aug 8 21:28:06 EDT 2012


Dear Mr Jeff

Thank you very much for the checking my script,
Yes, for the first exercise I want to plot it as a horizontal cross section,
but I am confuse to set the time,

If I am not wrong to interpreting your explanation,
so, I have to make 'set t 1'
and the script should be like this?

'set lon 100 100.8'
'set lat -0.45'
'set t 1'
'd ave(ref, t=1, t=15)'

Thank you

Best regards,
wendi



On Thu, Aug 9, 2012 at 2:05 AM, Jeff Duda <jeffduda319 at gmail.com> wrote:

> Be careful how you set your dimension environment.  For the first
> exercise, it appears your dimension environment is varying in time, fixed
> in the y-direction, but varying slightly in the x-direction.  The resulting
> plot you'll get is then a horizontal cross section of the 1-hr averaged
> reflectivity at each point.  It will display the same variables 15 times
> since your time dimension is varying.  You could simplify that and still
> get the same response by keeping your time dimension fixed (the specific
> value for t doesn't matter since you're specifying the time indices of the
> average).
>
> For the second exercise, you need to set your x-dimension to fixed in
> order to get a time series.  Otherwise you'll again get a horizontal cross
> section as in the first exercise.  Otherwise, the code is fine.
>
> Jeff Duda
>
> On Wed, Aug 8, 2012 at 12:15 AM, wendi harjupa <wendiharjupa at gmail.com>wrote:
>
>> Dear Sir/Madam
>>
>> I need your help
>>
>> I have ctl file as 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    15 LINEAR 14:00Z10apr2004  4mn
>> VARS    2
>> ref 39  99  Reflectivity(dBZ)
>> vel 39  99  Doppler Velocity(m/s)
>> ENDVARS
>>
>> If I want to make average for one hour, is it ok if my gs file as below?
>>
>> 'set lon 100 100.8'
>> 'set lat -0.45'
>> 'set t 1 15'
>> 'set t 1'
>> 'd ave(ref, t=1, t=15)'
>>
>> Then I want to display time series of data (not averaging), is it ok if
>> my gs file as below?
>>
>> 'set lon 100 100.8'
>> 'set lat -0.45'
>> 'set t 1 15'
>> 'set t 15'
>> 'd ref'
>>
>> Please give me any comment, I am very confuse about it,
>>
>> Thank you
>>
>> 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
>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
>
> --
> Jeff Duda
> Graduate research assistant
> University of Oklahoma School of Meteorology
> Center for Analysis and Prediction of Storms
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>


-- 
-------------
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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