Table 2 Comparison of subsidence rate between InSAR data and level data. Table 2 shows that the error between InSAR data and level data is less than 2 mm, which suggests that the SBAS-InSAR technology results have high precision.
From: Land subsidence monitoring based on InSAR and inversion of aquifer parameters
Difference | Number of | Level results | InSAR reults |
|---|---|---|---|
/(mm/yr) | level point | /(mm/yr) | /(mm/yr) |
C-6 | -23.3 | -24.6 | -1.3 |
JC1194 | -21.9 | -22.5 | -0.6 |
JC278 | -41.1 | -40.7 | 0.4 |
BU1425 | -30.1 | -28.8 | -1.3 |
JC279 | -35.6 | -36.2 | -0.6 |
JC1094 | -52.5 | -51.8 | 0.7 |
C096 | -46.7 | -48.7 | -1.0 |
JC1486 | -44.4 | -44.9 | -0.5 |
FI18 | -56.2 | -57.1 | -1.1 |
FI228 | -62.7 | -63.8 | -0.9 |