Array broadcasting issues #2765
Description
I recently upgraded to iris version 1.13.0 and simple array broadcasting operations that worked with previous versions aren't working now. For instance, I'm getting the following error:
Traceback (most recent call last):
File "/home/599/dbi599/ocean-analysis/data_processing/calc_ohc.py", line 217, in <module>
main(args)
File "/home/599/dbi599/ocean-analysis/data_processing/calc_ohc.py", line 153, in main
temperature_cube = temperature_cube * area_cube
File "/g/data/r87/dbi599/miniconda3/envs/ocean/lib/python3.6/site-packages/iris/analysis/maths.py", line 336, in multiply
in bad_coord_grps}))
ValueError: This operation cannot be performed as there are differing coordinates (time, depth) remaining which cannot be ignored.
The temperature cube looks like this:
print(temperature_cube)
sea_water_potential_temperature / (K) (time: 120; depth: 31; latitude: 189; longitude: 192)
Dimension coordinates:
time x - - -
depth - x - -
latitude - - x -
longitude - - - x
and the area cube like this:
print(area_cube)
cell_area / (m2) (latitude: 189; longitude: 192)
Dimension coordinates:
latitude x -
longitude - x