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

fYear

2014

fDate

13-18 July 2014

Firstpage

441

Lastpage

444

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International

Conference_Location

Quebec City, QC

Type

conf

DOI

10.1109/IGARSS.2014.6946453

Filename

6946453