Re: obj_anal_ic

Thank you very much.

info. as follow,
(1) ncl -V
 NCAR Command Language Version 5.2.1
(2) uname -a
Linux node1 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64 x86_64 GNU/Linux
(3) file names
test_obj_anal.zip



2010-11-17



flyyks



发件人： Dennis Shea
发送时间： 2010-11-17 14:52:20
收件人： flyyks
抄送： ncl-talk
主题： Re: [ncl-talk] obj_anal_ic
 
It should recognize missing values.
Do you have a *simple, clean* version of your NCL script and the data?
If so you can ftp bothe to
ftp ftp.cgd.ucar.edu
anonymous
Use your email address for the password
cd incoming
put ...
put ...
quit
Send us an email with the following information:
     * The names of the files after you have successfully completed the
transfer.
       We cannot look at the ftp/incoming directory for security reasons.
     * The version of NCL you are running (ncl -V).
     * The type of system you are on (uname -a).
On 11/17/10 5:18 AM, flyyks wrote:
> it seems this "obj_anal_ic" in v5.2 cannot recognize missing values.
> the missing values in my station data is -999.9. after the calculation,
> some points have value like -997.
> i change missing value to 1e+20, then the result is 9.99533e+19.
> 2010-11-17
> ------------------------------------------------------------------------
> flyyks
> ------------------------------------------------------------------------
> *发件人：* Dennis Shea
> *发送时间：* 2010-07-06 19:10:02
> *收件人：* "羘gel_G._Mu駉z"
> *抄送：* ncl-talk
> *主题：* Re: [ncl-talk] obj_anal_ic
> OK ... I see the issue.
> The v5.1.0 contributed.ncl had
> http://www.ncl.ucar.edu/Document/Functions/Contributed/obj_anal_ic.shtml
> This *NCL language* function was *slow* when a large number of values
> were input. Hence, I replaced it with a fortran version.
> The fortran had several additional features including the ability
> to 'blend' different iterations. Likely, that is where the differences
> occurred.
> ===
> You can still use the original function by using the undocumented
> function in contributed.ncl called
> function obj_anal_deprecated (....)
> This is te original v5.1.0 version .... just a different name.
> ===
> Also, you may wish to look at the Application URL "Random data to grid"
> http://www.ncl.ucar.edu/Applications/rdm2grid.shtml
> It shows several different interpolations.
> ===
> Good luck
> D
> On 07/06/2010 11:33 AM, Mary Haley wrote:
> > Hi,
> >
> > The obj_anal_ic routine wasn't available until version 5.2.0, so I'm
> > not sure what you mean by using it in version 5.1.0.
> >
> > When you type "ncl -V" with the ncl that appears to be working, does
> > it actually say "5.1.0"?
> >
> > --Mary
> >
> > On Jul 6, 2010, at 10:58 AM, Ángel G. Muñoz wrote:
> >
> >> Hi there
> >>
> >> Can anyone explain me what is the new algorithm for the
> >> obj_anal_ic(_Wrap) function in version 5.2. I have been using the
> >> one in 5.1.0 (which corresponds to a Cressman analysis) and there
> >> are differences in the final output. I want to understand the new
> >> methodology.
> >>
> >> Thanks
> >>
> >>
> >> <agmunoz.vcf>_______________________________________________
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> --
> ======================================================
> Dennis J. Shea tel: 303-497-1361 |
> P.O. Box 3000 fax: 303-497-1333 |
> Climate Analysis Section |
> Climate & Global Dynamics Div. |
> National Center for Atmospheric Research |
> Boulder, CO 80307 |
> USA email: shea 'at' ucar.edu |
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Received on Wed Nov 17 07:37:48 2010