[Matplotlib-users] Adding 2 Data Array's Math Operation

[Benson, Randall]

Hi -
I'm struggling to figure out why I am not receiving the result from trying to add 2 unique but with same shape DataArrays that look like this below:

<xarray.DataArray 'stack-1eae019110cce9444c8807bfd58d45fb' (variable: 1, lat: 73, lon: 144)>
dask.array<pow, shape=(1, 73, 144), dtype=float32, chunksize=(1, 73, 144), chunktype=numpy.ndarray>
Coordinates:
  * lat       (lat) float32 90.0 87.5 85.0 82.5 80.0 ... -82.5 -85.0 -87.5 -90.0
  * lon       (lon) float32 0.0 2.5 5.0 7.5 10.0 ... 350.0 352.5 355.0 357.5
    month     int64 2
  * variable  (variable) <U4 'uwnd'

Doing this in my code --- >  speedc = np.sqrt(uwindc*uwindc+vwindc*vwindc)
Gives me an empty (when I try speedc.plot()) variable that looks like this below:

speedc
Out[219]:
<xarray.DataArray (variable: 0, lat: 73, lon: 144)>
dask.array<sqrt, shape=(0, 73, 144), dtype=float32, chunksize=(0, 73, 144), chunktype=numpy.ndarray>
Coordinates:
  * variable  (variable) object
  * lat       (lat) float32 90.0 87.5 85.0 82.5 80.0 ... -82.5 -85.0 -87.5 -90.0
  * lon       (lon) float32 0.0 2.5 5.0 7.5 10.0 ... 350.0 352.5 355.0 357.5
    month     int64 2

Thank you for any help that you can provide after I've exhausted my search (I must be missing something).

Randall
[Description: cid:image001.jpg at 01D34737.23261CB0]
Randall P. Benson, PhD
Wind Asset Meteorologist, Energy Resource - Onshore

1125 NW Couch Street, Suite 700
Portland, Oregon, USA 97209
Telephone  503-796-7129
Cell  971-227-2477
randall.benson at avangrid.com<mailto:randall.benson at avangrid.com>

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