Table 2 Statistical characteristics of source parameters, best objective function values, and iterations to convergence for different ensemble sizes across 30 EKI realizations.
Ensemble size (Ne) | Best parameter estimations (median ± interquartile range) across 30 realizations | ||||||
|---|---|---|---|---|---|---|---|
\(\:{A}\:\left(\:{m}{G}{a}{l}.{{m}}^{2}\:\right)\) | z (m) | \(\:{x}_{0}\) (m) | q | \(\:{\upmu\:}\) | Best Obj (mGal) | Iterations to convergence | |
50 | 528.39 ± 106.6 | 24.96 ± 0.15 | -50.00 ± 0.00 | 0.99 ± 0.00 | 0.97 ± 0.05 | 2.7e-03 ± 0.01 | 407 ± 826 |
100 | 544.29 ± 61.3 | 24.99 ± 0.08 | -49.99 ± 0.00 | 0.99 ± 0.00 | 0.97 ± 0.03 | 4.16e-04 ± 0.0 | 315 ± 453 |
150 | 598.65 ± 90.2 | 24.99 ± 0.00 | -50.00 ± 0.00 | 1.00 ± 0.00 | 0.94 ± 0.04 | 4.06e-04 ± 0.0 | 262 ± 232 |
200 | 558.20 ± 116.6 | 25.00 ± 0.00 | -50.00 ± 0.00 | 1.00 ± 0.00 | 0.96 ± 0.06 | 1.95e-04 ± 0.0 | 235 ±241 |
300 | 557.74 ± 111.6 | 24.99 ± 0.00 | -49.99 ± 0.00 | 1.00 ± 0.00 | 0.96 ± 0.06 | 6.17e-05 ± 0.0 | 176 ± 85 |
400 | 557.81± 92.93 | 24.99 ± 0.00 | -50.00 ± 0.00 | 1.00 ± 0.00 | 0.95 ± 0.05 | 7.94e-05 ± 0.0 | 190 ± 93 |
500 | 584.79 ± 98.8 | 25.00 ± 0.00 | -50.00 ± 0.00 | 1.00 ± 0.00 | 0.95 ± 0.05 | 1.22e-04 ± 0.0 | 128 ± 75 |
True | 500 | 25 | -50 | 1 | 1 | - | - |
