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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

DifferenceNumber ofLevel resultsInSAR reults
/(mm/yr)level point/(mm/yr)/(mm/yr)
C-6-23.3-24.6-1.3
JC1194-21.9-22.5-0.6
JC278-41.1-40.70.4
BU1425-30.1-28.8-1.3
JC279-35.6-36.2-0.6
JC1094-52.5-51.80.7
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