[gradsusr] extracting problem

[Sanjukta Rani Padhi]

Thanks sir for the commands. In CDO the ploting map is not clear , thats
why i prefer to use Grads.
but if my years are not serialy means x to y is not serial, then how i set.
if i want 2002, 2004, 2007 from 2000-2013.nc data set. kindly help.


On Tue, Aug 29, 2017 at 5:42 PM, Kishore Ragi <kishoreragi at gmail.com> wrote:

> Hi,
>
> You can use cdo to extract data from th large file.
>
> use the following command
>
> cdo selyear,2010,2011,2012,etc inputfile.nc outfile.nc
>
> or if you want to stick to grads and want to extract few years, here are
> the steps you should take
>
> sdfopen yourfile.nc
> set t x y
> define var=var
> set sdfwrite subset.nc
> sdfwrite var
>
> where x and y are initial and final timestep you want in your required
> subset file.
>
> This clearly shows that the former process is much easier. If I were you,
> I would use cdo to accomplish as I am bit lazy.
>
> Cheers,
> Kishore
>
>
> *PhD student in climate science,*
>
> *National Institute of Technology, Rourkela,*
>
> *India- 769008*
>
>
>
>
>
> *Phone: +91-8908671881http://www.researchgate.net/profile/Kishore_Ragi
> <http://www.researchgate.net/profile/Kishore_Ragi>https://in.linkedin.com/in/kishoreragi
> <https://in.linkedin.com/in/kishoreragi>*
>
> On Tue, Aug 29, 2017 at 5:24 PM, Sanjukta Rani Padhi <
> sanjuktapadhi87 at gmail.com> wrote:
>
>> Hi All,
>> I am new in Grads. I want to know how to extract some years from a .nc
>> file having some large no of years.
>> thanks
>>
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>
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