[gradsusr] Problem with maskout

[Jennifer Adams]

Try using a local override of the time index in your expression, like this:
ga-> sst2 = maskout(sst1,mask.2(t=1))

--Jennifer

On Oct 25, 2013, at 12:45 PM, Alejandro Meza Mayorga wrote:

> Hello grads users. I have netcdf file containing daily sst data over a year, and I need to extract the grid data over an irregular area for each day, so I used the maskout function.
> 
> First I created a shapefile for the area that I needed using ArcGis software (1.png).
> 
> Then I followed the instructions posted in a previous thread by Dr. Yaqiang Wang (http://gradsusr.org/pipermail/gradsusr/2013-April/034603.html). So using MeteoInfo software I made a grads maskout data with the shapefile (2.png), and I changed the TDEF in the maskout ctl file just as stated (3.png).
> 
> The maskout works fine for the first day (t=1) of the data (4.png), but the problem is that when I try to use another 't' different than 1 it gives an error (5.png).
> 
> I hope you could give some ideas of what the error might be. Is it a mistake of how to create the shapefile, or an error in the control file?
> 
> Looking forward for your help. Thanks in advance.
> 
> Alejandro.
> 
>   
> <1.png><2.png><3.png><4.png><5.png>_______________________________________________
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--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030 





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