Table 3.
Parameter estimates for models with G and Q also assumed unknown and estimated: the block on the left fits the model assuming independence between the fields (i.e. τNF = 0), while the block on the right corresponds to a dependent model that estimates τNF
Independent model (τNF = 0) |
Dependent model (τNF estimated) |
||||||
Estimates | 2.5% | 97.5% | Estimates | 2.5% | 97.5% | True value | |
β | 5.21 | 3.86 | 6.39 | 5.61 | 4.69 | 6.12 | 5.00 |
τN | 1.01 | 0.77 | 1.36 | 0.92 | 0.66 | 1.40 | 1.00 |
GSD(τN) | 2.73 | 2.40 | 3.21 | 2.61 | 2.25 | 3.26 | 2.72 |
τF | 0.61 | 0.47 | 0.82 | 0.57 | 0.40 | 0.86 | 0.64 |
GSD(τF) | 2.18 | 1.98 | 2.47 | 2.13 | 1.88 | 2.53 | 2.23 |
τNF | 0 | 0 | 0 | 0.45 | 0.25 | 0.82 | 0.50 |
G | 351.23 | 298.17 | 408.55 | 384.84 | 320.89 | 419.10 | 351.48 |
Q | 12.58 | 11.07 | 16.42 | 14.87 | 11.18 | 16.79 | 13.78 |
log(![]() |
4.52 | 2.51 | 6.50 | 4.55 | 1.96 | 7.22 | 4.72 |
log(![]() |
3.28 | 1.70 | 4.85 | 3.27 | −0.19 | 6.62 | 4.20 |
β | Interzonal airflow rate (m3 min−1) | ||||||
G | Contaminant's mass emission rate (mg min−1) | ||||||
Q | Room supply and exhaust airflow rate (m3 min−1) | ||||||
τN, τF | Variance for measurement error at near and far field (log scaled) | ||||||
τNF | Covariance between near and far field for measurement error (log scaled) | ||||||
GSD(τN) | Geometric standard deviation for measurement error at near field | ||||||
![]() ![]() |
Steady-state concentration at near and far field (mg m−3) |
The simulated data set was generated using true parameter values indicated in the rightmost column.