| Title | Monitoring landslides and volcanic deformation from InSAR techniques |
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| Author | Singhroy, V; Ohkura, H; Molch, K; Couture, R |
| Source | Geo-imagery bridging continents: proceedings of the XXth International Society for Photogrammetry and Remote Sensing Congress; International archives of the photogrammetry, remote sensing and spatial
information sciences vol. 35, pt. B7, 2004 p. 570-573 |
| Links | Online - En ligne
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| Year | 2004 |
| Alt Series | Earth Sciences Sector, Contribution Series 2005015 |
| Meeting | XXth International Society for Photogrammetry and Remote Sensing Congress; Istanbul; TR; July 12-23, 2004 |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Province | Alberta |
| NTS | 82G/09 |
| Area | Frank; Miyake-Jima Island; Canada; Japan |
| Lat/Long WENS | -114.5000 -114.0000 49.7500 49.5000 |
| Lat/Long WENS | 139.6667 139.6667 34.2500 34.0000 |
| Subjects | surficial geology/geomorphology; structural geology; remote sensing; satellite imagery; filters; interference patterns; vegetation; deformation; landslides; flow mechanisms; flow structures; slope
failures; fault patterns; volcanic processes; subsidence rates; planning; modelling; Frank Slide |
| Illustrations | satellite images; block diagrams; photographs; time series; graphs |
| Program | Natural Hazards and Emergency Response |
| Released | 2004 01 01 |
| Abstract | Our research has shown that interferometric SAR techniques can be used to monitor deformation at landslides and volcanoes under specific conditions. Special filtered interferograms are being used to
reduce speckle and minimize errors created by vegetation. InSAR images were used to monitor current post slide motion along existing fault lines at the Frank Slide a 30 x 106 m3 rock avalanche, in the Canadian Rockies. This information is used to
understand the post failure mechanism and mobility of the slide. At Miyake-Jima Island in Japan a filtered interferogram was used to monitor post eruption volcanic shrinkage. The volcano erupted in July-August 2000 that led to the total evacuation of
inhabitants from the island. Our differential InSAR results show subsidence at the summit after the eruption, and allow us to monitor the post eruption processes, thereby assisting in planning the return of local residents to the island. |
| GEOSCAN ID | 220475 |
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