[gradsusr] set fixed altitude

[Arlindo da Silva]

On Wed, Feb 23, 2011 at 10:44 AM, Jeffrey Duda <jdduda at iastate.edu> wrote:

> Adrian,
> If your data has sigma or eta vertical coordinates, just use those.  If
> not, you'll have to use some sort of interpolation (linear, logarithmic,
> etc.).
>
>
The zinterp function in the opengrads extensions may do what you want:

  zinterp(FIELD,ZGRID,ZLEV,[-l|-s|-p])<http://opengrads.org/doc/udxt/libbjt/libbjt.html#zinterp_field_zgrid_zlev__l_s_p__>

    Arlindo




> Jeff Duda
>
>
> On Wed, Feb 23, 2011 at 3:28 AM, Adrian Scherzinger <
> adrian.scherzinger at meteotest.ch> wrote:
>
>> hi
>>
>> usually i work with levels in grads. but now i have to make maps of a
>> specific altitude above model topography.
>> Example: Relative Humidity 3000 feet above ground
>>
>> is there a easy way to do this?
>>
>> thanks for your hints
>>
>> cheers
>>
>> adrian
>>
>> --
>> ___________________________
>> Adrian Scherzinger
>> Stv. Leiter Wetterprognosen
>>
>> Genossenschaft METEOTEST
>> Fabrikstrasse 14, CH-3012 Bern
>> Tel +41 (0)31 307 26 26
>> Fax +41 (0)31 307 26 10
>> adrian.scherzinger at meteotest.ch
>> http://www.meteotest.ch
>>
>> ******************************************************************
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>> ******************************************************************
>>
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>
>
>
> --
> Jeff Duda
> Iowa State University
> Meteorology Graduate Student
> 3134 Agronomy Hall
> www.meteor.iastate.edu/~jdduda
>
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>


-- 
Arlindo da Silva
dasilva at alum.mit.edu
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