Title :
Persistent scatterer InSAR for ground deformation mapping using ALOS PALSAR data: A case study in Singapore
Author :
Qing Wan ; Soo Chin Liew ; Leong Keong Kwoh
Author_Institution :
Center for Remote Imaging, Sensing & Process. (CRISP), Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
Persistent Scatterer InSAR (PS-InSAR) technique provides ground deformation monitoring in an accuracy of millimeter, due to its capability of overcoming the atmospheric disturbance, geometrical and temporal decorrelation. The Phased Array L-band Synthetic Aperture Radar (PALSAR) of ALOS (Advanced Land Observation Satellite) provides better capability to penetrate vegetation, which is especially useful in tropical area. In this paper, we have conducted the preliminary study on ground surface change monitoring in Singapore. 18 ascending PALSAR FBS/FBD level 1.1 data are used for this study, and the first result has identified several spots that might have small deformation, which need to be further investigated.
Keywords :
environmental monitoring (geophysics); geomorphology; radar interferometry; remote sensing by radar; synthetic aperture radar; terrain mapping; ALOS PALSAR data; Advanced Land Observation Satellite; PALSAR FBS/FBD data; PS-InSAR technique; Phased Array L-band Synthetic Aperture Radar; Singapore; atmospheric disturbance; geometrical decorrelation; ground deformation mapping; ground deformation monitoring; ground surface change monitoring; persistent scatterer InSAR; temporal decorrelation; tropical area; vegetation; Coherence; Decorrelation; Monitoring; Noise; Radar imaging; Satellites; Synthetic aperture radar; ALOS; Deformation Analysis; PALSAR; PS-InSAR;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6946453
