Journal
REMOTE SENSING
Volume 6, Issue 2, Pages 1564-1586Publisher
MDPI
DOI: 10.3390/rs6021564
Keywords
slope superficial displacement; small baseline SAR interferometry; PALSAR; TerraSAR; Hong Kong
Categories
Funding
- Research Grants Council of the HKSAR, China [450210]
- Innovation and Technology Support Programme of HKSAR, China [ITS/152/11FP]
- National Natural Science Foundation of China [41201455]
- Hundred Talents Program of the Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences [Y2ZZ27101B]
Ask authors/readers for more resources
Owing to the development of spaceborne synthetic aperture radar (SAR) platforms, and in particular the increase in the availability of multi-source (multi-band and multi-resolution) data, it is now feasible to design a surface displacement monitoring application using multi-temporal SAR interferometry (MT-InSAR). Landslides have high socio-economic impacts in many countries because of potential geo-hazards and heavy casualties. In this study, taking into account the merits of ALOS PALSAR (L-band, good coherence preservation) and TerraSAR (X-band, high resolution and short revisit times) data, we applied an improved small baseline InSAR (SB-InSAR) with 3-D phase unwrapping approach, to monitor slope superficial displacement in Hong Kong, China, a mountainous subtropical zone city influenced by over-urbanization and heavy monsoonal rains. Results revealed that the synergistic use of PALSAR and TerraSAR data produces different outcomes in relation to data reliability and spatial-temporal resolution, and hence could be of significant value for a comprehensive understanding and monitoring of unstable slopes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available