However, the feasibility of the technique in non-arid areas with intensive land use is hampered by factors of signal processing, orbit modelling, propagation heterogeneities, and temporal decorrelation.
Major focus is on the influence of signal propagation heterogeneities.
The study will yield feasibility measures of the application of land subsidence monitoring over the Groningen gas field. A signal theoretic description of the SAR and InSAR data processing will be applied. Physical properties of atmospheric phase delay are examined using refractivity parameters. Field experiment data are used for analysis and verification. R. Klees, prof.dr.