[gradsusr] calculating the trend for summer seasons

[Mohsen Soltani]

Hello Eric,

Thanks for your email. Actually, I rechecked the plots and I have to say
that the annual plot is real/correct. The unit is in terms
of millimeter (mm).

FYI: I used the daily precipitation data complied by APHRODITE's water
resources with a resolution 0.25 x 0.25 degrees grid over the Middle East
including Iran.

Mohsen

--
some are weather-wise some are otherwise!
--
Best Wishes,
(Mr.) Mohsen Soltani
Climatology Grad Student (M.Sc.),
Faculty of Geography, University of Tehran, Tehran, Iran
Tel: (+98) 9119772934
e-mail: soltani.clima at gmail.com


On Thu, May 16, 2013 at 6:50 PM, Eric Altshuler <ela at cola.iges.org> wrote:

> Dear Mohsen,
>
> I was looking at the two precip plots you made, and I noticed the values
> in the April-June plot are about 3 times larger than those in the annual
> plot (for the same period). Which plot has the correct values and what are
> the units?
>
> Thanks
>
> Eric L. Altshuler
> Research Scientist
> Center for Ocean-Land-Atmosphere Studies
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705-3106
> USA
>
> E-mail: ela at cola.iges.org
> Phone: (301) 902-1257
> Fax: (301) 595-9793
>
> ------------------------------
> *From: *"Mohsen Soltani" <soltani.clima at gmail.com>
> *To: *"GrADS Users Forum" <gradsusr at gradsusr.org>
> *Sent: *Wednesday, May 15, 2013 1:24:56 PM
> *Subject: *Re: [gradsusr] calculating the trend for summer seasons
>
> hi,
>
> You may also use the following example script to plot time-series for
> your precipitation data.
>
> t1='1june2012'
> t2='30august2012'
>    'set time 't1' 't2
>     'set gxout bar'
>     'set bargap 25'
>     'set barbase 0'
>     'set vrange 2''set ylint 2'
>     'set ccolor 4'
>     'd precip' (or your var name)
>
> This will plot a bar-chart for 3 months of the summer in the year 2012
> only. The attached plot is just as an output example.
>
> Mohsen
>
> On 5/15/13, Luis Blacutt <luis.blacutt at gmail.com> wrote:
> > 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
> >>
> >> _______________________________________________
> >> gradsusr mailing list
> >> gradsusr at gradsusr.org
> >> http://gradsusr.org/mailman/listinfo/gradsusr
> >>
> >>
> >
>
>
> --
> --
> some are weather-wise some are otherwise!
> --
> Best Wishes,
> (Mr.) Mohsen Soltani
> Climatology Grad Student (M.Sc.),
> Faculty of Geography, University of Tehran, Tehran, Iran
> Tel: (+98) 9119772934
> e-mail: soltani.clima at gmail.com
>
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