I was recreating the code from Metpy Case Study
using ERA5 data. But calculating advection I got this error:
TypeError: got an unexpected keyword argument 'dim_order'
Here is my full code using colab link: https://colab.research.google.com/drive/1UlYPoT6rF7BkHCIta8t7DlnTeq8Mu8wr?usp=sharing
The linked example is unfortunately out-of-date with recent versions of MetPy. As noted in this StackOverflow answer, the signature for metpy.calc.advection as of v1.0 has changed to (scalar, u, v), and dim_order is no longer valid as an argument, but instead dimension order is automatically inferred (or manually specified with y_dim and x_dim). In your example, using the updated API could look something like
import metpy.calc as mpcalc
from metpy.units import units
import xarray as xr
data = xr.open_dataset(file).metpy.parse_cf()
level = 850 * units.hPa # units.Quantity([ 250, 300, 500, 750, 850,
# 925, 1000], 'hPa')
temp = data['t'].isel(time=0).metpy.sel(vertical=level)
u_wind = data['u'].isel(time=0).metpy.sel(vertical=level)
v_wind = data['v'].isel(time=0).metpy.sel(vertical=level)
temp_adv = mpcalc.advection(temp, u_wind, v_wind)