[gradsusr] Problem with maskout

[Alejandro Meza Mayorga]

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.

   		 	   		  
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