Table 1. Table of true, first-guess and estimated values of frictional parameters, cost function, and occurrence time of the triggered earthquake.
From: An adjoint data assimilation method for optimizing frictional parameters on the afterslip area
A− B (kPa) | A (kPa) | L (mm) | Cost function | Occurrence time of the triggered earthquake (year) | |
|---|---|---|---|---|---|
True value | 5.00 | 40.0 | 40.0 | 3000 | 3.83 |
First-guess value | 10.0 | 80.0 | 80.0 | 12500 | 10.9 |
Estimated value | 5.37 | 40.5 | 40.8 | 3010 | 3.92 |