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InSAR Stack Processing — Deformation Mapping in the Area of ...

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Contents1 Introduction 72 Data Used 93 Methodology 133.1 Interferogram creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.2 Topography subtraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.3 Coherence and filter<strong>in</strong>g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.4 Phase unwrapp<strong>in</strong>g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.5 Data byteswap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153.6 Interferograms related to one reference po<strong>in</strong>t . . . . . . . . . . . . . . . . . . . . . . . . . 153.7 Interferogram consistency check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153.8 Adjustment model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.8.1 <strong>Deformation</strong> model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.8.2 Velocity model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.9 Quality and reliability <strong>of</strong> <strong>the</strong> results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193.9.1 Snedecorov-Fischer distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193.9.2 Kolmogorov-Smirnov test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.10 Geocod<strong>in</strong>g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.11 Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.11.1 Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.11.2 Orbit errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 Results and Conclusion 214.1 Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214.2 Conclusion and future work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

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