[gradsusr] Using Maskout Function To Compute Areal Average

[Kishore Ragi]

Before going to write a program, just do the following to make sure it is
working fine.

go to the working directory and open grads in terminal and invoke the
following commands:

'open temp_var.ctl (don't use sdfopen)
'open mask.ctl'
'd aave(maskout(temp,mask.2(t=1)),lon=-125,lon=-66,lat=24,lat=50)'

(An instruction before doing this: open ctl file and check path of its
.data file. If not right, correct the path)

Cheers,

Kishore



On Wed, Jan 8, 2014 at 12:26 PM, Perry, Aaron @ LSC <Aaron.Perry at lsc.vsc.edu
> wrote:

>  I still can't seem to get this aave(maskout command to run properly.
>
> I've attached my script and the associated MeteoInfo-generated ctl file to
> this email to see if anyone could take a look at it for me.
>
>
>
> Onward and Upward,
>
> Aaron D. Perry
> Boston, MA
> Lyndon State College '15
> Twitter: @AaronPerryLSC <https://twitter.com/AaronPerryLSC>
> Mobile: 617-780-4312
>     ------------------------------
> *From:* gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] on
> behalf of Kishore Ragi [kishoreragi at gmail.com]
> *Sent:* Tuesday, January 07, 2014 11:44 PM
> *To:* GrADS Users Forum
> *Subject:* Re: [gradsusr] Using Maskout Function To Compute Areal Average
>
>   Perry,
>
>  you just open your data ctl file and then your maskout ctl file as 2.
>
>  for your area average: d
> aave(maskout(your_var,mask.2(t=1)),lon=X1,lon=X2,lat=Y1,lat=Y2)
>
>  mask.2 shows that variable mask is second file and use always (t=1) for
> mask as the t step is only.
>
>  Hope it solves your purpose!!!
>
>  Cheers,
>
>  Kishore
>
>
> On Wed, Jan 8, 2014 at 9:24 AM, Yaqiang Wang <yaqiang.wang at gmail.com>wrote:
>
>> Look at GrADS online document:
>> http://www.iges.org/grads/gadoc/gradfuncmaskout.html
>>
>>  You can open more than one data-descriptor file. Each file is numbered
>> according to the order in which it was opened.
>>  http://www.iges.org/grads/gadoc/gradcomdopen.html
>>
>>
>>  On Wed, Jan 8, 2014 at 11:41 AM, Perry, Aaron @ LSC <
>> Aaron.Perry at lsc.vsc.edu> wrote:
>>
>>>   Good Evening All,
>>>
>>> I'm currently trying to compute an areal average and I have created a
>>> masked out control file with MeteoInfo for the area that I'd like to
>>> compute an average of.
>>>
>>> What do I do with the MeteoInfo-created .ctl file now?
>>>
>>> The reason why I ask is because there's already a .ctl file for the
>>> displayed data and now there's one for just the area and I don't think that
>>> I want to be using them both at the same time...
>>>
>>> Any guidance would be greatly appreciated.
>>>
>>>
>>> Onward and Upward,
>>>
>>> Aaron D. Perry
>>> Boston, MA
>>> Lyndon State College '15
>>> Twitter: @AaronPerryLSC <https://twitter.com/AaronPerryLSC>
>>> Mobile: 617-780-4312
>>>
>>>  _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>>
>>
>>
>>  --
>> *************************************************
>> Dr. Yaqiang Wang
>> Chinese Academy of Meteorological Sciences (CAMS)
>> 46, Zhong-Guan-Cun South Avenue
>> Beijing, 100081
>> China
>>
>> yaqiang.wang at gmail.com
>>
>> http://www.meteothinker.com
>> **************************************************
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20140108/0d4279d8/attachment.html