normal_component

metpy.calc.normal_component(data_x, data_y, index='index')

Obtain the normal component of a cross-section of a vector field.

Parameters

• data_x (xarray.DataArray) – The input DataArray of the x-component (in terms of data projection) of the vector field.

• data_y (xarray.DataArray) – The input DataArray of the y-component (in terms of data projection) of the vector field.

• index (str or int, optional) – Denotes the index coordinate of the cross-section, defaults to ‘index’ as set by metpy.interpolate.cross_section

Returns

component_normal (xarray.DataArray) – Component of the vector field in the normal directions

See also

cross_section_components, tangential_component

Notes

The coordinates of data_x and data_y must match.

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