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20040712: gr_mnav
- Subject: 20040712: gr_mnav
- Date: Mon, 12 Jul 2004 11:30:21 -0600
Ryan,
No there is nothing special.
Your angles for the PROJ look wrong however.
Your PROJ should look like: STR/90;-120;0
for example for a north polar projection ceneterd on -120 .
Steve Chiswell
Unidata User Support
>From: Ryan Torn <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200407121708.i6CH8MaW022185
>I am trying to convert some model output data to gempak that is on a
>polar grid centered around the north pole. I am using the gr_mnav
>subroutine to build the navigation grid, but I seem to be having
>problems creating a navigation that can be used to make plots. Here is
>the output from the gd_info with the navigation information:
>
> GRID NAVIGATION:
> PROJECTION: STR
> ANGLES: 70.0 15.0 90.0
> GRID SIZE: 99 99
> LL CORNER: 22.13 -165.00
> UR CORNER: 22.13 15.00
>
>I think the problem is with the LL and UR latitude and longitude of the
>model grid. Is there something special I need to do for polar
>stereographic plots for gr_mnav to work?
>
>Ryan
>
>--
>Ryan Torn
>Graduate Student
>Dept of Atmospheric Sciences
>University of Washington, Box 351640
>Seattle, WA 98195
>Phone 206-685-1851
>
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