 |
| Titel |
Interferometric SAR monitoring of the Vallcebre landslide (Spain) using corner reflectors |
| VerfasserIn |
M. Crosetto, J. A. Gili, O. Monserrat, M. Cuevas-González, J. Corominas, D. Serral |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 4 ; Nr. 13, no. 4 (2013-04-17), S.923-933 |
| Datensatznummer |
250018406
|
| Publikation (Nr.) |
 copernicus.org/nhess-13-923-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| This paper describes the deformation monitoring of the Vallcebre landslide
(Eastern Pyrenees, Spain) using the Differential Interferometric Synthetic
Aperture Radar (DInSAR) technique and corner reflectors (CRs). The
fundamental aspects of this satellite-based deformation monitoring technique
are described to provide the key elements needed to fully understand and
correctly interpret its results. Several technical and logistic aspects
related to the use of CRs are addressed including an analysis of the
suitability of DInSAR data to monitor a specific landslide, a discussion on
the choice of the type of CRs, suggestions for the installation of CRs and a
description of the design of a CR network. This is followed by the
description of the DInSAR data analysis procedure required to derive
deformation estimates starting from the main observables of the procedure,
i.e., the interferometric phases. The main observation equation is analysed,
discussing the role of each phase component. A detailed discussion is
devoted to the phase unwrapping problem, which has a direct impact on the
deformation monitoring capability. Finally, the performance of CRs for
monitoring ground displacements has been tested in the Vallcebre landslide
(Eastern Pyrenees, Spain). Two different periods, which provide interesting
results to monitor over time the kinematics of different parts of the
considered landslide unit, are analysed and described. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|