用有限元法反演InSAR数据的自动程序

2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas Pub Date : 2008-11-01 DOI:10.1109/USEREST.2008.4740336

G. Currenti, C. Del Negro, D. Scandura, C. A. Williams

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引用次数: 4

摘要

利用不同类型的静态变形数据(如GPS位移、DInSAR图像、找平和EDM测量)进行的震源反演表明，断层上的滑动通常不是均匀的，可以更好地模拟为位错源的分布。为此，我们开发了一个自动的大地测量数据反演程序来估计沿断层界面的滑动分布。采用有限元模型计算了静态位移的综合Green¿s函数。fem生成的合成Green¿s函数与逆方法相结合，以估计解释观测到的地面变形的滑移分布。

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Automated procedure for InSAR data inversion using Finite Element Method

Source inversions performed using different kind of static deformation data, such as GPS displacements, DInSAR imagery, levelling and EDM measurements, suggest that slip on fault is usually not uniform and is better modeled as a distribution of dislocation sources. To this aim, we developed an automated procedure for geodetic data inversion to estimate slip distribution along the fault interfaces. Finite Element Models are used to compute synthetic Green¿s functions for static displacement. FEM-generated synthetic Green¿s functions are combined with inverse methods to estimate slip distributions that explain the observed ground deformation.

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来源期刊

2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas

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