CoreModel.fa_ex(*, satellite_accounts=None, scenario: str = 'baseline')

Return activity-side exploded environmental multipliers for SUT.

\[\begin{split}f_{a,\mathrm{ex}} = \begin{bmatrix} \operatorname{diag}(e_{a,k})w_{aa} \\ \operatorname{diag}(e_{c,k})w_{ca} \end{bmatrix}\end{split}\]

The equation is for one selected satellite account k. The two blocks are stacked on rows: activity contributors first, then commodity contributors. Summing contributor rows for each account recovers that row of fa. Here \(w_{ca}=u\,w_{aa}\).

Parameters:

• satellite_accounts – Optional subset of satellite rows to explode. Accepts one label or an iterable of labels.

• scenario – Scenario used to read source matrices.

Returns:

DataFrame with a 3-level MultiIndex on the rows describing the satellite account and the contributing activity or commodity.

Return type:

pandas.DataFrame

Notes

For IOT models use f_ex(). For the commodity side use fc_ex().

The full baseline result is also available as the property db.fa_ex_all.