DInSAR for mine subsidence monitoring using multi-source satellite SAR images

Hsing Chung Chang*, Linlin Ge, Chris Rizos

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

15 Citations (Scopus)

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 languageEnglish
Title of host publicationProceedings
Subtitle of host publication2005 IEEE International Geoscience and Remote Sensing Symposium, 2005, IGARSS '05
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1742-1745
Number of pages4
Volume3
ISBN (Print)0780390504, 9780780390508
DOIs
Publication statusPublished - 2005
Externally publishedYes
Event2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of
Duration: 25 Jul 200529 Jul 2005

Other

Other2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005
CountryKorea, Republic of
CitySeoul
Period25/07/0529/07/05

Keywords

  • DInSAR
  • ERS-1/2
  • JERS-1
  • Mine subsidence
  • Radarsat-1

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