| Levels | Measured vs Designed airflow variation (m3/s) | Simulated vs Designed airflow variation (m3/s) |
| 30 | −5.2 | 2.6 |
| 000 | −8.3 | 4.0 |
| −30 | −9.3 | 19.2 |
| −60 | −6.3 | 3.0 |
| −90 | −16.3 | 1.7 |