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| Titel |
Performance Analysis of Tandem-L Mission for Modeling Volcanic and Seismic Deformation Sources |
| VerfasserIn |
Homa Ansari, Kanika Goel, Alessandro Parizzi, Henriette Sudhaus, Nico Adam, Michael Eineder |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250111575
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| Publikation (Nr.) |
 EGU/EGU2015-11708.pdf |
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| Zusammenfassung |
| Although a great number of publications have focused on the application of InSAR in
deformation source modeling as well as the development of different algorithms
in this regard, little investigation has been dedicated to the sensitivity analysis of
the InSAR in deformation source modeling. Our purpose is to address this issue
by analyzing the reliability of InSAR in modeling the deformation sources due to
landslides, seismic and volcanic activities, with special focus on the L band SAR
measurements.
The sensitivity analysis is considered for three commonly used geophysical models in
case of subsidence, seismic and volcanic activities; namely, the Gaussian subsidence
bowl, Okada and Mogi point source, respectively. In each of the cases, the InSAR
sensitivity is analytically formulated and its performance is investigated using simulated
SAR data. The investigations are carried out using stochastic error propagation
approaches to infer the precision of the models’ parameters as well as their mutual
covariance. The limiting factors in SAR interferometry are categorized in two groups
and investigated separately in sensitivity analysis; with the first dealing with the
geometrical limits imposed by the side looking geometry of the SAR measurements
and the second focusing on the InSAR stochastic characteristics in the L band. |
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