Nio: x <-> y flipped in RUC grib file?

Greetings,

Hopefully I am not missing something obvious again :( I am having a
joyous evening playing with PyNGL, but have 1 doubt. I grabbed me this
grib file:

ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/ruc/prod/ruc2a.20071014/ruc2.t07z.grb2f01

And when I asked pyngl about this file:

g = Nio.open_file('ruc2.t07z.grb2f01.grb', 'r')
v = g.variables["TMP_211_ISBL"]
print v
print v.shape

I got:

Dimensions and sizes: [lv_ISBL2 | 37] x [gridx_211 | 65] x [gridy_211 |
93]
...snip....
(37, 65, 93)

The v.shape makes sense to me, but I am curious about the other line where
x and y appear to be flipped ?

I betcha some ignorance of how grib grids are defined is shining thru on
my behalf! I asked my friend, The Google, about this matter and got:

http://www.nco.ncep.noaa.gov/pmb/docs/on388/tableb.html#GRID211
http://www.unidata.ucar.edu/software/netcdf/NUWG/ruc.cdl

which seem to indicate gridx_211 == 93

thanks!
   daryl

PS:
  Nio.__version__ == '1.2.0'

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Received on Sun Oct 14 2007 - 19:00:02 MDT