metobs_toolkit.obstype_modeldata.compute_amplitude

compute_amplitude(modelobs_vectorfield, df)

Compute amplitude of 2D vectorfield components.

The amplitude column is added to the dataframe and a new ModelObstype, representing the amplitude is returned. All attributes wrt the units are inherited from the ModelObstype_vectorfield.

Parameters:

• modelobs_vectorfield (ModelObstype_Vectorfield) – The vectorfield observation type to compute the vector amplitudes for.

• df (pandas.DataFrame) – The dataframe with the vector components present as columns.

Returns:

• data (pandas.DataFrame) – The df with an extra column representing the amplitudes.

• amplitude_obstype (ModelObstype) – The (scalar) Modelobstype representation of the amplitudes.