| Title | Emergency Geomatics Service activation for Turtle Mountain, Alberta InSAR monitoring |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Lehrbass, B; Samsonov, S ; Dudley, J; Svacina, N; Drouin, H; Decker, V; Tolszczuk-Leclerc, S |
| Source | Geomatics Canada, Open File 64, 2021, 19 pages, https://doi.org/10.4095/328268  Open Access |
| Image |  |
| Year | 2021 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | Alberta |
| NTS | 82G/09 |
| Area | Turtle Mountain; Frank; Rocky Mountains |
| Lat/Long WENS | -114.5000 -114.0000 49.7500 49.5000 |
| Subjects | geophysics; Science and Technology; Nature and Environment; Health and Safety; remote sensing; satellite imagery; radar methods; landslides; slope stability analyses; slope failures; deformation;
displacement; Emergency Geomatics Service; RADARSAT-2; RADARSAT Constellation Mission; monitoring; Geomatics; Methodology |
| Illustrations | location maps; satellite images; 3-D images; geoscientific sketch maps; cross-sections; tables |
| Program | Canada Centre for Remote Sensing Emergency Geomatics |
| Released | 2021 05 20 |
| Abstract | The Frank Slide in 1903 caused the deaths of more than 70 people, and there remains a risk of a second rock avalanche. Since then, many different methods have been used to monitor the slope for signs of
movement. On April 8, 2020, the Alberta Energy Regulator (AER) contacted the Canada Centre for Mapping and Earth Observation (CCMEO) with a request for emergency assistance to monitor Turtle Mountain for deformation using interferometric synthetic
aperture radar following the hardware failure of their ground-based monitoring system. This report describes at a high level the communication, planning, setup, operation, and reporting for this emergency request. Each deformation monitoring program
presents a unique challenge, but this methodology can be broadly adapted to similar InSAR monitoring requests in the future. The purpose of this report is to provide a record of the services provided to help guide future geohazards monitoring
requests, which may become more frequent with increased landslide risk due to climate change and greater satellite data availability.
Between April 8 and June 30, 2020, 40 images were collected by RADARSAT-2 and RADARSAT Constellation Mission
satellites over Turtle Mountain. These images were processed quickly after acquisition and no significant deformation was observed during the monitoring period. Historical deformation of up to 5 cm in the line-of-sight was observed between 2014 and
2020. |
| Summary | (Plain Language Summary, not published)
The Alberta Geological Survey (AGS), a branch of the Alberta Energy Regulator (AER), is responsible for the long-term monitoring of a potential landslide
at Turtle Mountain. They provide a near real-time ground-based remote monitoring network as part of their Turtle Mountain Monitoring Program. Following the hardware failure of their ground-based InSAR monitoring system on April 8, 2020, the AER
contacted the Canada Centre for Mapping and Earth Observation (CCMEO) with a request for emergency assistance to monitor Turtle Mountain for deformation using interferometric synthetic aperture radar (InSAR) with the RADARSAT Constellation Mission
and RADARSAT-2. Emergency management and contingency plans were then activated until June 10, 2020, when the AER confirmed that the ground-based InSAR system had been repaired and was collecting valid data. This report summarizes the project setup
and monitoring that was performed during the EGS activation. |
| GEOSCAN ID | 328268 |
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