[gradsusr] TRMM hourly to daily

[krishnamohan]

Hai Rupak,

        This problem may happen due to the x and y axis you set for using
fwrite. An easy way to avoid this type of confusion is to write the output
in netcdf format using sdfwrite command ( above grads version 2.0). An
example is

'reinit'
'sdfopen uwnd.2009.nc'
'set lon 0 360'
'set lat -90 90'
'set time 01jan2009 04nov2009'
'set lev 1000 10'
'define u=uwnd'
'set sdfwrite uwnd09daily.nc'
'sdfwrite u'

This will write the newly defined variable to an external file (here
uwnd09daily.nc).

-- 
Krishnamohan.K.S
Junior Research Fellow
Department Of Atmospheric Sciences
Cochin University of Science and Technology
Cochin,India


On Wed, Sep 15, 2010 at 9:56 AM, Rupak Rajbhandari <
rupak.rajbhandari at gmail.com> wrote:

> Hi,
>
> I am trying to convert TRMM 3B42.V6 3-hourly rainfall data files into
> single daily rainfall file using GrADS 'fwrite'. The script is working well.
> But when I compare the newly generated maps with the original, they are
> different. The scales for both the maps are same but the rainfall spots are
> different. I think, there is a mix-up in x,y direction. If this is the case,
> how do I resolve it. As an example, i am attaching a figure
> displaying comparison map and the script file with this mail.
>
> Any help in this regard is appreciated.
>
> Thanking you,
>
> Rupak Rajbhandari
> Department of Meteorology
> Trichandra Campus, TC/TU
> Kathmandu
>
>
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