[gradsusr] calculating the trend for summer seasons

[Luis Blacutt]

Hi Gürol,

You need to know what your variable names are, you will find it by tiping
q file
then you can use simple powerful tools, such as
d ave(variablename,t=initialtime,t=finaltime,timestep)
that in your case might be t=6, t=408, timestep=12, that will calculate the
average for june for the whole period (1979-2012), and so on

Best regards
Luis


On Wed, May 15, 2013 at 10:53 AM, Gürol Çerçi <cercig at gmail.com> wrote:

> Hello,
>
> I have a monthly precipitation data set, 3 dimensional (lat, lon, time) in
> netcdf format.
>
> For a specific grid point, I want to calculate the linear trend between
> 1979-2012 for total summer values (June+July+August).
>
> Any tips to do that as the easiest way? (I have already the script to
> calculate the linear trend).
>
> For example:
> set lat 10
> set lon 160
> set t something
> then what to write?
>
> Thanks...
> --
> Gürol Çerçi
> Meteorological Engineer
>
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