Data in rotated grid coordinates

[Ren Diandong]

Busy coding and did not check this email. I am glad that I meet the two
hour deadline (except time for drafting the email) and all seems work on
my machine!

Anyway, I think my previous email should work for you. Because I saw it
work in my system and a nice pattern was seen.

However, I could not see the advantage of using this type of projection,
do you?

By the way, last year I volunteered to post my plotting system for GrADS
user community but did not get response from the organizers. The reason
is simply to avoid repeated coding. Yours is an exception because the
projection is not implemented in my system yet.


Diandong

On Thu, 2006-11-09 at 18:52 +0000, Gudrun Nina Petersen wrote:
> Dear Diandong,
>
> attached is some data on rotated grid. The data is on grads format so
> easily read into grads with the attached ctl file.
>
> Cheers,
>
> Nina
>
>
> Ren Diandong wrote:
> > Now I see the fwd code and will offer the backward code soon (definitely
> > this afternoon, that means one or two hours for me).
> >
> > My backward code will give the parameters needed by pdef. If you provide
> > the raw (artificial data is OK), I can plot use GrADS without too much
> > difficulty.
> >
> > If you fails to provide data within two hours, I will just email back my
> > code and you can play with it and feedback to me for more questions.
> >
> > Diandong
> >
> >
> > On Thu, 2006-11-09 at 14:06 +0000, Gudrun Nina Petersen wrote:
> >> Dear Diandong,
> >>
> >> thank you very much for your reply.
> >>
> >> The information I have of the grid are the following:
> >>
>
> plain text document attachment (testdata.ctl)
> dset ^testdata.dat
> title Unified Model Output (Vn 6.1):
> undef 200000004008175468544.000000
> options little_endian
> *
> xdef 326 linear 342.000000 0.110016
> *
> ydef 420 linear -14.000000 0.110001
> *
> zdef 1 linear 1 1
> *
> tdef 3 linear 00:00Z20jan2006 6dyhr
> *
> vars 2
> ht 0 99 OROGRAPHY (/STRAT LOWER BC) [m]
> p 0 99 PRESSURE AT MEAN SEA LEVEL [Pa]
> endvars