Re: [ferret_users] Vertical axis correction

[Paul Young <paul.young@xxxxxxxxxxxxxxxx>]

Hi Paulo,

Just use the vlimits qualifier when you plot. E.g., if your pressure 
levels went from 1000hPa to the top of the atmosphere you could do 
something like:

yes? fill/vlimits=1000:0:100  your_data[y=@ave]

which will give a z-axis with a tick mark every 100hPa. (See the manual 
for more information about customising tick marks etc. using ppl commands.)

Note, if your data is provided in netCDF format you can add the 
'postive=down' attribute to the z-axis when it is defined. This means 
that ferret will automatically recognise that the z-axis runs from high 
values at the surface to lower values aloft.

Hope this helps,

Paul

Paulo Henrique wrote:
> Hi Ferreters,
>
> I have some modeled moteorological data and I would like to 
> fill/shade/contour vertical profiles.
>
> The vertical levels are pressure surfaces. When I do a X-Z plot I got 
> an inverted vertical axis with higher pressures on top and lower 
> pressures on botton.
>
> How can I invert the axis?
>
>
> Cheers
> --
> Ms. Paulo Henrique Santiago de Maria
> Grupo de Modelagem Atmosférica
> Departamento de Meteorologia e Oceanografia
> Fundação Cearense de Meteorologia e Recursos Hídricos
> Av. Rui Barbosa 1246 - CEP 60115-221
> Fortaleza, Ceará
> Fone: (85) 3101-1106 / 3101-1126 

--

Paul Young

Centre for Atmospheric Science
Department of Chemistry
University of Cambridge
Lensfield Road
Cambridge CB2 1EW UK

Tel: +44 (0)1223 763 814
Fax: +44 (0)1223 763 823

http://www.atm.ch.cam.ac.uk/cas
http://www.atm.ch.cam.ac.uk/~paul