Re: Anomalous top region of plot

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Fri, 13 Jun 2008 14:09:29 -0600 (MDT)

Helen,

I agree with Adam about there are probably some missing values in your
data.

I tried a little test where I took your psa/zsa values, and applied
them to a test gsn_csm_pres_hgt script that I have, and it worked
fine, so I think your changes are okay.

--Mary

On Fri, 13 Jun 2008, Adam Phillips wrote:

> Hi Helen,
>
> Looking at your resource list, the white area of the plot should correspond
> to areas that have missing data, is that the case?
> (a print(u(0,{.01},:,0)) should confirm that.
>
> Also, I think you want to change the units of lev_p in the top script from
> "hPa" to "Pa". That might alter the way vinth2p works, as you are specifying
> the units of your input pressure array incorrectly.
>
> The way I see it, I don't think your alterations to gsn_csm.ncl should have
> done anything to the plot, because all you are doing is altering the YR axis
> labels.
> Adam
>
> Helen Parish wrote:
>> I cannot get the top section of my figures to plot correctly. There seems
>> to be a mysterious gap in the middle of the top of the plot (the white
>> part) which I cannot seem to eliminate. My routine does an interpolation to
>> pressure levels, followed by a plot of the variable versus pressure and
>> height. Since I have changed the pressure level structure in CAM to 50
>> levels, going from the ground to around 95 km, I had to estimate the
>> correspondence between the new pressure levels and height.
>>
>> In order to do this I have adjusted the routine "gsn_csm.ncl". I enclose
>> the section of gsn_csm.ncl which I have modified (in the file
>> "gsnpart.ncl"), showing the adjusted pressure and height levels.
>>
>> I have also enclosed a typical anomalous plot, and the ncl script
>> ("test.ncl")I used to generate the plot (containing the levels I am
>> interpolating onto).
>>
>> Does anyone know what is causing this problem?.
>>
>> Thanks,
>> Helen.
>>
>> ------------------------------------------------------------------------
>>
>>
>> ------------------------------------------------------------------------
>>
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> --
> --------------------------------------------------------------
> Adam Phillips asphilli_at_ucar.edu
> National Center for Atmospheric Research tel: (303) 497-1726
> ESSL/CGD/CAS fax: (303) 497-1333
> P.O. Box 3000 Boulder, CO 80307-3000
> http://www.cgd.ucar.edu/cas/asphilli
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Received on Fri Jun 13 2008 - 14:09:29 MDT

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