[gradsusr] Root Mean Square Error
T. haghroosta
haghroosta at hotmail.com
Tue Dec 25 02:12:52 EST 2012
Dear Amulya, I wrote these commands as you said in a .gs file (test.gs) and after that I tried to run the test.gs, I got nothing. I mean when I used the command "run test.gs", grads did nothin, niether error nor output! 'open tem.ctl'
'set t 1 4'
'set lon 85 100'
'set lat 0 10'
'define RMSE=sqrt(ave(T*T,t=1,t=4))'
'd RMSE'
and also in another .gs file : 'open tem.ctl'
'set t 1 4'
'set lon 85 100'
'set lat 0 10'
'define RMSE=sqrt(aave(lh*lh,lon=85,lon=100,lat=0,lat=10))'
'd RMSE' I also couldn't work with the sample scripts. Could you please lead me how to do? Regards, Tahereh
> ------------------------------
>
> Message: 3
> Date: Tue, 25 Dec 2012 04:07:21 +0000
> From: "T. haghroosta" <haghroosta at hotmail.com>
> Subject: [gradsusr] Root Mean Square Error
> To: <gradsusr at gradsusr.org>
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> Content-Type: text/plain; charset="windows-1256"
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>
> Dear All, Could you please tell me how I can calculate RMSE (root mean square error) in Grads and draw relevant graphs? Regards, Tahereh
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> Message: 4
> Date: Tue, 25 Dec 2012 09:55:21 +0530
> From: Amulya Chevuturi <amulya.chevuturi at gmail.com>
> Subject: Re: [gradsusr] Root Mean Square Error
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID:
> <CAOV67LkiGd7ayjps3XTMW-3FWq5V=Ao4R4-oz7BUowZN0gkhqA at mail.gmail.com>
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>
> Hello Tahereh,
>
> This is a website containing quite many scripts for various analysis. There
> is a RMSE calculation script also called ltrend.gs. Please look it and see
> if it is useful for your work.
> http://www.atmos.umd.edu/~bguan/grads/GrADS_Scripts.html
>
> Usually the RMSE calculation is done through the commands:
>
> "define RMSE=sqrt(ave((A*A),t=t1,t=tn)"
> Where,
> RMSE=Root Mean Square Error
> A=Is the parameter you want to calculate
> t1=Time step 1 for you series
> tn=Last time step for your series
> This will give you the plot of a time period.
>
> OR
>
> "define RMSE=sqrt(aave((A*A),lon=lon1,lon=lonn,lat=lat1,lat=latn)"
> Where
> RMSE=Root Mean Square Error
> A=Is the parameter you want to calculate
> Lat1, Latn, Lon1 and Lonn = Tell the extent of your study
> This will give you a time series of RMSE.
>
> Hopefully this clears your doubt.
>
> With regards,
> Amulya Chevuturi
> School of Environmental Sciences
> Jawaharlal Nehru University
> New Delhi
>
> On Tue, Dec 25, 2012 at 9:37 AM, T. haghroosta <haghroosta at hotmail.com>wrote:
>
> > Dear All,
> >
> > Could you please tell me how I can calculate RMSE (root mean square error)
> > in Grads and draw relevant graphs?
> >
> >
> > Regards,
> >
> > Tahereh
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
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> ------------------------------
>
> Message: 5
> Date: Tue, 25 Dec 2012 10:08:26 +0530
> From: madhu latha <madhulatha11 at gmail.com>
> Subject: Re: [gradsusr] problem for prebufr data
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID:
> <CAAhFJCSWRsxZMmPfNuZosfDgbzfJETwccC+sJxoSgMroxmWmTw at mail.gmail.com>
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>
> hi
>
> Thank you
> First itself i have converted prebufr file to litle endian prebufr file
> using ssrc.exe
> then i have assimilated data using 3dvar.
> Then mentioned problem came
>
> thank you.
>
> On Mon, Dec 24, 2012 at 11:56 PM, Rabah Hachelaf <r.hachelaf at gmail.com>wrote:
>
> > Hello,
> >
> > try to convert your prepbufr file from big endian to littele endian buy
> > the ssrc.c tool.
> >
> > ssrc.exe <Big Endian prepbufr file> Little Endian prepbufr file
> >
> >
> > 2012/12/24 madhu latha <madhulatha11 at gmail.com>
> >
> >> hi
> >> earlier i have tried the suggestions in the link by setting the
> >> environment
> >> setenv F_UFMTENDIAN "little:94-99"
> >> but no use
> >>
> >> then itried to do reblock.c mentioned in the same link.
> >> but i did not understand how to use the utility reblock.c
> >>
> >> kindly suggest.
> >>
> >>
> >> On Mon, Dec 24, 2012 at 10:15 PM, Rabah Hachelaf <r.hachelaf at gmail.com>wrote:
> >>
> >>> Hello,
> >>> see this link , it may be help you.
> >>>
> >>> http://www.mmm.ucar.edu/wrf/users/wrfda/Docs/readBufr.htm
> >>>
> >>> --
> >>> Cordialement,
> >>> Best regards,
> >>> Rabah Hachelaf
> >>>
> >>> ____
> >>> ( )
> >>> ( )
> >>> (___ __)
> >>> /////////
> >>>
> >>>
> >>> 2012/12/24 madhu latha <madhulatha11 at gmail.com>
> >>>
> >>>> Dear all
> >>>>
> >>>>
> >>>> Iam trying to run 3dvar on intel compiler
> >>>> i have successfully installed wrf3dvar
> >>>> but when iam trying to assimilate prepbufr data it is showing the
> >>>> following error
> >>>>
> >>>>
> >>>> Error message
> >>>> **************BUFR ARCHIVE LIBRARY ABORT*****************
> >>>> BUFRLIB: OPENBF - ERROR READING INPUT FILE CONNECTED TO UNIT 96 WHEN
> >>>> CHECKING
> >>>> FOR ?BUFR? IN FIRST 4 BYTES OF RECORD
> >>>> **************BUFR ARCHIVE LIBRARY ABORT*****************
> >>>>
> >>>>
> >>>> can anyone know how to fix the problem
> >>>> Any help will be appreciated.
> >>>>
> >>>> Thank you.
> >>>>
> >>>>
> >>>> --
> >>>> *With Regards
> >>>> Madhu Latha Akkisetti
> >>>> SRF
> >>>> NARL <http://www.narl.gov.in>
> >>>> Department of space
> >>>> Gadanki*
> >>>>
> >>>> _______________________________________________
> >>>> gradsusr mailing list
> >>>> gradsusr at gradsusr.org
> >>>> http://gradsusr.org/mailman/listinfo/gradsusr
> >>>>
> >>>>
> >>>
> >>>
> >>> --
> >>> Cordialement,
> >>> Best regards,
> >>> Rabah Hachelaf
> >>>
> >>> ____
> >>> ( )
> >>> ( )
> >>> (___ __)
> >>> /////////
> >>>
> >>>
> >>> _______________________________________________
> >>> gradsusr mailing list
> >>> gradsusr at gradsusr.org
> >>> http://gradsusr.org/mailman/listinfo/gradsusr
> >>>
> >>>
> >>
> >>
> >> --
> >> *With Regards
> >> Madhu Latha Akkisetti
> >> SRF
> >> NARL <http://www.narl.gov.in>
> >> Department of space
> >> Gadanki*
> >>
> >> _______________________________________________
> >> gradsusr mailing list
> >> gradsusr at gradsusr.org
> >> http://gradsusr.org/mailman/listinfo/gradsusr
> >>
> >>
> >
> >
> > --
> > Cordialement,
> > Best regards,
> > Rabah Hachelaf
> >
> > ____
> > ( )
> > ( )
> > (___ __)
> > /////////
> >
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
>
>
> --
> *With Regards
> Madhu Latha Akkisetti
> SRF
> NARL <http://www.narl.gov.in>
> Department of space
> Gadanki*
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