[gradsusr] Using Maskout Function To Compute Areal Average

[Kishore Ragi]

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
>>
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>>
>
>
> --
> *************************************************
> 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
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