The GDCROSS routine gdxyax.f only knows to flip the vertical axis for
PRES and SGMA coordinates at present. You can convert your ELVL into
PRES to get the expected orientation. Otherwise, the gdcross code will
have to be modified to understand that ELVL is another coordinate
that needs to be flipped.
Unidata User Support
On Mon, 2006-06-12 at 10:50, Kelly Mahoney wrote:
I am trying to plot data stored in the elvl vertical coordinate (taken
from wrf output), and when I plot the data it plots fine, only it is
upside down. I have tried a number of yaxes and ptypes, etc but the best
I can get is the data plotted, only upside-down. (Reversing the values
in the yaxis parameter made no difference.) Has anyone else come across
this and figured out how to flip it upright?