On the effect of horizontal deformation on InSAR subsidence estimates.

Sami Samiei-Esfahany*, Ramon F. Hanssen, Karin Thienen-Visser, van, Annemarie Muntendam-Bos

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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 languageEnglish
Title of host publicationProc. ‘Fringe 2009 Workshop’, Frascati, Italy, 30 November – 4 December 2009
PublisherESA Publications
Number of pages7
Publication statusPublished - 2009
EventFringe 2009 Workshop - Frascati, Italy
Duration: 30 Nov 20094 Dec 2009

Conference

ConferenceFringe 2009 Workshop
Country/TerritoryItaly
CityFrascati
Period30/11/094/12/09

Keywords

  • Persistent scatterer
  • InSAR
  • Horizontal de-formation
  • Subsidence

Fingerprint

Dive into the research topics of 'On the effect of horizontal deformation on InSAR subsidence estimates.'. Together they form a unique fingerprint.

Cite this