[RegCNET] Output display with GrADS

[James Ciarlo`]

Dear RegCNETers,

I have gone through both pressure output and hgt output from RegCM4. They
all appear to be as Surface Pressure rather than Sea Level Pressure or
geopotential height (even at higher levels such as 500 hPa).

Does this mean that RegCM4 doesn't have the capability of producing these
variables? or is there another way to obtain these outputs?
I found an email from the RegCM3 forums, asking about this very same thing (
https://lists.ictp.it/pipermail/regcnet/2009/001730.html).
The answer was the use of sigma2p. I know there is this command on regcm4,
but I cannot figure out how to operate it.

Can someone help please?

James

On 6 February 2011 12:24, Irini Yiannikopoulou <avgeio at yahoo.com> wrote:

>
> The same happens to me! I don't know which parameter resulted in these
> images. It's difficult for me to find the solution as I am a beginner in
> RegCM running. In fact I have run the model only two times.
>
> Irini
>
> --- Στις *Παρ., 04/02/11, ο/η James Ciarlo` <james.ciarlo at physics.org>*έγραψε:
>
>
> Από: James Ciarlo` <james.ciarlo at physics.org>
> Θέμα: Re: [RegCNET] Output display with GrADS
> Προς: "Irini Yiannikopoulou" <avgeio at yahoo.com>
> Κοιν.: regcnet at lists.ictp.it
> Ημερομηνία: Παρασκευή, 4 Φεβρουάριος 2011, 17:08
>
>
> I am experiencing a problem very much identical to this with pressure. I am
> trying to get pressure at mean sea level but the results are equivalent to
> surface pressure. But I cannot understand why this is so.
>
> James
>
> On 4 February 2011 12:37, Irini Yiannikopoulou <avgeio at yahoo.com<http://gr.mc1214.mail.yahoo.com/mc/compose?to=avgeio@yahoo.com>
> > wrote:
>
>
> Dear all,
>
> I have run Regcm4. I used the 1983 dataset from NNRP2 database for the
> ICBC, the GLCC10MIN_BATS for the landuse, GTOPO30_10MIN for the topography,
> sst.mnmean, sst.wkmean.1981-1989 and sst.wkmean.1990-present for the SST.
> The regcm.in file is attached.
>
> When it finished, I converted the outputs of the model to netcdf files in
> order to display the parameters I wanted using the GrADS. I tried to compare
> the images with the corresponding ones from the NCEP/NCAR Reanalysis 1
> website: "
> http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html". For
> many of the parameters the results of the comparison were satisfactory. The
> main problem appeared with the surface pressure and geopotential heights
> images in which there are no values at the sea grid points.
>
> Could you please give me an idea of what it went wrong?
>
> Thank you in advance!
>
>
> Irini Giannikopoulou
>
>
> P.S.The surfacepressure and hgt865hPa images, which are attached, are the
> from the Regcm4.0 output and the surfpres and the hgt850hPa images come from
> the NCEP/NCAR Reanalysis 1 webpage. The date that is diplayed is 0402198300.
>
>
>
>
>
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