3. Stats (areas in km², GDA2020 Australian Albers)
| Geography | Cells | Region | Catchment | Over | Under | IoU | |
A cell is in the catchment if it touches the region, with centroid inside, if the cell's centre of mass lies inside the region, or with ≥ N%, if at least that share of the cell's own area lies inside the region. Over = catchment outside the region; Under = region outside the catchment (≈ 0 under touch). ASGS cell areas use the ABS area attribute; ASGS boundaries are simplified (see footer) so the intersection term carries a small error.