Wind components

[ManojAgrawal]

Hello,
I am trying to understand how eastward and northward wind components are being calculated. As per the formula in the code

https://github.com/Unidata/MetPy/blob/v1.6.3/src/metpy/calc/basic.py#L128-L167
u = -speed * np.sin(wind_direction)
v = -speed * np.cos(wind_direction)

so for metar 'KEWR 310212Z 17003KT 6SM BR SCT008 OVC013 09/07 A2995 RMK AO2 T00940072'
components should be (-1.039948366491091, -2.8139842563583244)
however, when I use the parser

import metpy
from metpy import io
io.parse_metar_to_dataframe('KEWR 310212Z 17003KT 6SM BR SCT008 OVC013 09/07 A2995 RMK AO2 T00940072')

i get the components as (-0.520945, 2.954423)

Can anyone help me with this please?

thanks,
Manoj

[ManojAgrawal]

Seems like the code is converting degrees to radians and then applying the formula.