Abstract
The objective of this research was to map centimeter-scale soil movements on slopes that are prone to landslides. These small movements can be used as possible signs of an approaching larger landslide or rock fall. Two methods were used: an interferometric technique using TerraSAR-X data and a ground based technique with a theodolite and prisms. The study area - in a mountainous area - is characterized by high annual rain fall. TerraSAR-X is space-borne synthetic aperture radar operating in 3-cm wavelength. The TerraSAR-X dataset consisted of a sequence of 5 scenes. A soil movement of 1.55 cm was mapped with the interferometric technique in a broken nail-stabilized slope area. The corresponding movement (between 12 and 23 January 2009) by theodolite measurement was 2.65 cm. The interferometric technique measured the movement of a larger area while the theodolite measurement was a point measurement, which may explain part of the differences. More reliable theodolite measurements are preferred in areas with easy access while interferometric techniques can also be used in inaccessible areas.
| Original language | English |
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| Title of host publication | Environment science and engineering |
| Subtitle of host publication | Selected, peer reviewed papers from the 2011 International Conference on Environment Science and Engineering (ICESE 2011) |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Pages | 188-191 |
| ISBN (Print) | 978-1-4244-9776-8, 978-1-4244-9778-2 |
| Publication status | Published - 2011 |
| MoE publication type | A4 Article in a conference publication |
| Event | International Conference on Environment Science and Engineering, ICESE 2011 - Bali Island, Indonesia Duration: 1 Apr 2011 → 3 Apr 2011 |
Conference
| Conference | International Conference on Environment Science and Engineering, ICESE 2011 |
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| Country/Territory | Indonesia |
| City | Bali Island |
| Period | 1/04/11 → 3/04/11 |
Keywords
- landslide
- radar
- ground monitoring