Ryan,
Those files are just reanalysis 2 data files that are downloaded
from NCEP NCAR. The shape of the three data sets is identical
(1,1,73,144). If you wish I can send you those files offline.
Regards,
Ashwin.
On Fri, Oct 14, 2016 at 3:47 AM, Ryan May <rmay@xxxxxxxx> wrote:
> Ashwin,
>
> I'm responsible chiefly for MetPy so that's fine. For future reference,
> though, I prefer public channels in general, either Unidata's python-users
> email list or issues over at http://github.com/metpy/MetPy/issues so that
> the rest of the community can chime in with answers or benefit from the
> information. I'm cc'ing the python-users list so we can take the
> conversation there.
>
> That error message implies that something is off with the size of one of
> your arrays. What are the sizes of temp, u_wind, and v_wind?
>
> Ryan
>
>
>
> On Thu, Oct 13, 2016 at 9:53 AM, ashwinD12 . <winash12@xxxxxxxxx> wrote:
>
>> Hello Ryan,
>> I am not sure if I should be contacting you regarding
>> MetPy errors. But I ran a slightly modified example of this cookbook -
>> http://nbviewer.jupyter.org/github/unidata/notebook-gallery
>> /blob/master/notebooks/850mb_Temperature_Advection.ipynb and I am
>> getting this runtime error -
>> Any idea what that means ?
>> Traceback (most recent call last):
>> File "tempAdv.py", line 38, in <module>
>> adv = advection(temp * units.kelvin, [u_wind,
>> v_wind],(42583.44283066879 * units.meter, 55588.7366760194 * units.meter))
>> * units('degF/sec')
>> File
>> "/usr/local/lib/python3.5/dist-packages/MetPy-0.3.1-py3.5.egg/metpy/calc/kinematics.py",
>> line 166, in advection
>> grad = _stack(_gradient(scalar, *deltas))
>> File
>> "/usr/local/lib/python3.5/dist-packages/MetPy-0.3.1-py3.5.egg/metpy/calc/kinematics.py",
>> line 18, in _gradient
>> grad = np.gradient(f, *args, **kwargs)
>> File "/usr/lib/python3/dist-packages/numpy/lib/function_base.py", line
>> 1440, in gradient
>> "Shape of array too small to calculate a numerical gradient, "
>> ValueError: Shape of array too small to calculate a numerical gradient,
>> at least two elements are required.
>>
>>
>>
>
>
> --
> Ryan May, Ph.D.
> Software Engineer
> UCAR/Unidata
> Boulder, CO
>
