Re: isosurface plot problem

From: donna Cote <d-cote_at_nyahnyahspammersnyahnyah>
Date: Sat Nov 19 2011 - 13:13:41 MST

Gerry, I'm know I'm guessing on what you are trying to do.

I'm reading this (see quote or web page:
http://www.ncl.ucar.edu/Document/Functions/Contributed/int2p_n_Wrap.shtml),
and I don't think "depth"'s right-most dimension is the level.

"modelTemp" has the coordinates ordered as:
[time | 99] x [zlev | 22] x [latitude | 261] x [longitude | 401]

and this function wants (I think)
[time | 99] x [latitude | 261] x [longitude | 401] x [zlev | 22]

The same note applies to the depth and tlev vars.

isot = int2p_n_Wrap(modelTemp, depth, tlev, 0,1)
                        ^pin^ ^xin^ ^pout^

It looks like you have to reorder the dimensions, which requires that
all the dimensions be named. Ref:
http://www.ncl.ucar.edu/Document/Language/reorder.shtml

-Donna

On 11/17/11 4:54 PM, Gerald Creager wrote:
> Dennis, Mary,
>
> I've uploaded createIsoTest.ncl and an example PNG (Model1-20C.png) to
> your incoming directory. My model .nc file was apparently too big but
> can be snagged from
> http://mesonet.tamu.edu/iasnfs_forecast_2011111112_2012021712.nc
>
> I was expecting to see an isosurface over the whole Gulf of Mexico
> region. This would be for the 20C isotherm, if I'm not completely
> delusional.
>
> Any help or suggestions you could offer would be appreciated.
>
> Thanks, Gerry

On 11/19/11 1:00 PM, ncl-talk-request@ucar.edu wrote:
> Date: Fri, 18 Nov 2011 17:10:16 -0600
> From: Gerald Creager<gerry.creager@tamu.edu>
> Subject: Re: isosurface plot problem
> To: Rick Brownrigg<brownrig@ucar.edu>
> Cc:"ncl-talk@ucar.edu" <ncl-talk@ucar.edu>
>
> Howdy, Rick
>
> On 11/18/2011 04:42 PM, Rick Brownrigg wrote:
>> > Hi Gerry,
>> >
>> > I don't have answers for you, but that is a most curious result. The colors shown in the plot you attached aren't in the palette you specified (gsn_define_colormap(wks,"BlAqGrYeOrRe") ). In fact, they are from the "default" palette, and appear to start with index 4 (as per cnRes@gsnSpreadColorStart = 4), and are for the most part every other color from the palette, with a few exceptions. Its as though the palette is not getting set to what you specified. Are you getting any errors/warnings about that?
> No, I'm getting no errors on the pallete. I'm getting a warning on
> int2p_n, but that's all.
>
>> > Also, please excuse my ignorance of the science, but the range of depth intervals is from 40 to 150m; is it possible parts of the 20C isotherm are at depths outside that range?
> They shouldn't be, unless I've done something wrong. Depth should be:
> 0,
> 20,40,60,80,100,150,200,250,300,400,500,700,800,900,1000,1500,2000,2500,3000,3500
> or, 22 levels that are NOT evenly spaced. I anticipate the 20C isotherm
> would lie in the forst 4-6 levels but for really deep loop currents, it
> can be a bit deeper...
>
> Please help me out (I've stared at this 'til I'm cross-eyed): Where am I
> limiting the levels?
>
> gerry
>
>> > FWIW...
>> > Rick
>> >
>> > On Nov 18, 2011, at 11:06 AM, Gerald Creager wrote:
>> >
>>> >> I've uploaded createIsoTest.ncl and an example PNG (Model1-20C.png) to your incoming directory. My model .nc file was apparently too big but can be snagged from
>>> >> http://mesonet.tamu.edu/iasnfs_forecast_2011111112_2012021712.nc
>>> >>
>>> >> I was expecting to see an isosurface over the whole Gulf of Mexico region. This would be for the 20C isotherm, if I'm not completely delusional.
>>> >>
>>> >> Any help or suggestions you could offer would be appreciated.
>>> >>
>>> >> Thanks, Gerry
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Received on Sat Nov 19 13:13:59 2011

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