Large scale InSAR deformation time series: Phoenix and Houston case studies

We exploit nearly the entire spatial coverage of ERS SAR frames over Phoenix, Arizona and Houston, Texas areas by applying the Small BAseline Subset (SBAS) algorithm to conventional multi-look interferograms characterized by small temporal and spatial baselines. This approach permits us to easily investigate large areas with a wide range of deformation phenomena and different coherence characteristics. We produce both deformations maps and time series, allowing us to analyze several subsidence features and to reveal deformation patterns and trends not recognized in single interferograms.

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