Wind

Derived wind variables computed from the eastward (u) and northward (v) horizontal wind components.

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wspd — Wind speed

Returns wind speed (m/s) as √(u² + v²).

Parameter	Default	Description
uwnd	"uwnd"	Eastward wind component variable name
vwnd	"vwnd"	Northward wind component variable name

derived_vars:
  - name: wspd
    func: wspd
    uwnd: u10   # override if your dataset uses a different name
    vwnd: v10

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wdir — Wind direction

Returns wind coming-from direction in degrees (meteorological convention: 0° = northerly, 90° = easterly).

Parameter	Default	Description
uwnd	"uwnd"	Eastward wind component variable name
vwnd	"vwnd"	Northward wind component variable name

derived_vars:
  - name: wdir
    func: wdir
    uwnd: u10
    vwnd: v10

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API reference

gridstats.derived.wind.wspd(ds: xr.Dataset, *, uwnd: str = 'uwnd', vwnd: str = 'vwnd') -> xr.DataArray

Wind speed from eastward/northward components.

Parameters:

Name	Type	Description	Default
ds	Dataset	Input dataset.	required
uwnd	str	Name of the eastward wind component variable.	'uwnd'
vwnd	str	Name of the northward wind component variable.	'vwnd'

Returns:

Type	Description
DataArray	Wind speed DataArray (m/s).

gridstats.derived.wind.wdir(ds: xr.Dataset, *, uwnd: str = 'uwnd', vwnd: str = 'vwnd') -> xr.DataArray

Wind coming-from direction from eastward/northward components.

Parameters:

Name	Type	Description	Default
ds	Dataset	Input dataset.	required
uwnd	str	Name of the eastward wind component variable.	'uwnd'
vwnd	str	Name of the northward wind component variable.	'vwnd'

Returns:

Type	Description
DataArray	Wind direction DataArray (degrees, coming-from meteorological convention).