Monitoring Beijing-Tianjin Region Land Subsidence Using ALOS-2 Scansar Images
- Resource Type
- Conference
- Authors
- Liu, Bin; Li, Man; Zhang, Ling; Ge, Daqing
- Source
- 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS Geoscience and Remote Sensing Symposium IGARSS , 2021 IEEE International. :5338-5341 Jul, 2021
- Subject
- Aerospace
Geoscience
Photonics and Electrooptics
Signal Processing and Analysis
Geology
Land surface
Geoscience and remote sensing
Coherence
Monitoring
Synthetic aperture radar
L-band
ScanSAR mode
land subsidence
ionospheric phase
range split spectrum
- Language
- ISSN
- 2153-7003
Land subsidence is a typical geological disaster caused by local surface elevation changes under natural or man-made action. InSAR technology has been successfully applied to monitor the wide area land subsidence. The SAR pairs after 8 February 2015 are generally effective for ScanSAR-ScanSAR interferometry. For the specific low resolution and wide swath observations, we have a limited understanding of L-band ScanSAR mode for monitoring land subsidence with InSAR technique. This research focuses on eliminating differential ionospheric phase, and then discusses the feasibility of using ScanSAR mode to monitor large-scale land subsidence.