APPLICATION OF TIME SERIES INSAR TECHNIQUE FOR DEFORMATION MONITORING OF LARGE-SCALE LANDSLIDES IN MOUNTAINOUS AREAS OF WESTERN CHINA
Western China is very susceptible to landslide hazards. As a result, landslide detection and early warning are of great importance. This work employs the SBAS (Small Baseline Subset) InSAR Technique for detection and monitoring of large-scale landslides that occurred in Li County, Sichuan Province...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2016-06-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B1/89/2016/isprs-archives-XLI-B1-89-2016.pdf |
| Summary: | Western China is very susceptible to landslide hazards. As a result, landslide detection and early warning are of great importance.
This work employs the SBAS (Small Baseline Subset) InSAR Technique for detection and monitoring of large-scale landslides that
occurred in Li County, Sichuan Province, Western China. The time series INSAR is performed using descending scenes acquired
from TerraSAR-X StripMap mode since 2014 to get the spatial distribution of surface displacements of this giant landslide. The time
series results identify the distinct deformation zone on the landslide body with a rate of up to 150mm/yr. The deformation acquired
by SBAS technique is validated by inclinometers from diverse boreholes of in-situ monitoring. The integration of InSAR time series
displacements and ground-based monitoring data helps to provide reliable data support for the forecasting and monitoring of largescale
landslide. |
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| ISSN: | 1682-1750 2194-9034 |