Abstract
One of the limitations of InSAR is that it is only capa-ble of measuring a 3D projection of a real deformation vector on the radar line of sight. Therefore it is not possi-ble to retrieve the full displacement vector from a single InSAR measurement. The optimal solution for this limi-tation is a combination of InSAR measurements from dif-ferent imaging geometries. However, this solution is not applicable in areas where InSAR data are available in one particular geometry only. In this paper, a new approach will be discussed for 3D decomposition of InSAR defor-mation measurements for the case of subsidence. We use the hypothesis of a physical relation between horizontal displacement and vertical deformation. Using this hy-pothesis, we propose an iterative strategy for 3D decom-position of InSAR subsidence measurements. The pro-posed approach is tested on the PSI results of a complex subsidence field in Friesland, the Netherlands. Finally, the results are validated by comparison with available lev-eling data.
| Original language | English |
|---|---|
| Title of host publication | Proc. ‘Fringe 2009 Workshop’, Frascati, Italy, 30 November – 4 December 2009 |
| Publisher | ESA Publications |
| Number of pages | 7 |
| Publication status | Published - 2009 |
| Event | Fringe 2009 Workshop - Frascati, Italy Duration: 30 Nov 2009 → 4 Dec 2009 |
Conference
| Conference | Fringe 2009 Workshop |
|---|---|
| Country/Territory | Italy |
| City | Frascati |
| Period | 30/11/09 → 4/12/09 |
Keywords
- Persistent scatterer
- InSAR
- Horizontal de-formation
- Subsidence