Abstract
This paper demonstrates the use of differential interferometric synthetic aperture radar (DInSAR) for mine subsidence monitoring in Australia. The C-band SAR imagery acquired by ERS-1/2 and Radarsat-1 and L-band data acquired by JERS-1 were tested. As the satellites have different re-visit periods so that the mine subsidence occurred during the intervals of 1, 24, 35 and 44 days can be observed. The C-band InSAR results generally have lower coherence over vegetated areas, but the Radarsat-1 fine-beam mode data demonstrated that decorrelation can be reduced by having finer imaging resolution and shorter temporal separation. Another difficulty of DInSAR for mine subsidence monitoring is to resolve the phase ambiguity in interferogram. The L-band SAR data with comparatively longer wavelength than C-band showed it is more suitable for mining subsidence monitoring where large displacement over a small spatial extent occurs.
Original language | English |
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Title of host publication | Proceedings |
Subtitle of host publication | 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005, IGARSS '05 |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1742-1745 |
Number of pages | 4 |
Volume | 3 |
ISBN (Print) | 0780390504, 9780780390508 |
DOIs | |
Publication status | Published - 2005 |
Externally published | Yes |
Event | 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of Duration: 25 Jul 2005 → 29 Jul 2005 |
Other
Other | 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 |
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Country/Territory | Korea, Republic of |
City | Seoul |
Period | 25/07/05 → 29/07/05 |
Keywords
- DInSAR
- ERS-1/2
- JERS-1
- Mine subsidence
- Radarsat-1