[python-users] Need clarification on shiftgrid and addcylic

• To: python-users@xxxxxxxxxxxxxxxx
• Subject: [python-users] Need clarification on shiftgrid and addcylic
• From: "ashwinD12 ." <winash12@xxxxxxxxx>
• Date: Tue, 21 Jun 2016 15:36:19 +0530

Hello,
          I am just starting to learn how to plot NCEP reanalysis data
using Python3 and matplotlib and basemap. I have some clarifications on how
to go about doing it.

My dataset is between latitude 5 N to 40 N and 65 E and 100 E.
I am trying to plot geopotential height from NCEP reanalysis data. Here is
my code -

<code>
level = 5
time = 0

meters_per_grid = 277830

d = Dataset("hgt_500_2014_12_5_00Z.nc")
hgt =  d.get_variables_by_attributes(axis="hgt")
lon =  d.get_variables_by_attributes(axis="lon")
lat =d.get_variables_by_attributes(axis="lat")
hgt = hgt[::-1]
hgt, lon = shiftgrid(180, hgt, lon, start = False
</code>

Why do I get an IndexError: index out of range on shiftgrid call ?

BR,
Ashwin.

• Follow-Ups:
  • Re: [python-users] Need clarification on shiftgrid and addcylic
    • From: Ryan May