| Title | Monitoring permafrost environments with InSAR and polarimetry, case studies from Canada
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| Author | Short, N ; Brisco,
B; Murnaghan, K |
| Source | IEEE Transactions on Geoscience and Remote Sensing (Institute of Electrical and Electronics Engineers) 2012, 2012 p. 4034-4037, https://doi.org/10.1109/IGARSS.2012.6350524 |
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| Year | 2012 |
| Alt Series | Earth Sciences Sector, Contribution Series 20130453 |
| Publisher | IEEE |
| Meeting | IEEE International Geoscience and Remote Sensing Symposium: Remote Sensing for a Dynamic Earth; Munich; DE; July 22-27, 2012 |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 85J/07; 85J/08; 107C/08 |
| Area | Yellowknife; Tuktoyaktuk |
| Lat/Long WENS | -133.0000 -132.0000 69.5000 69.2500 |
| Lat/Long WENS | -115.0000 -114.0000 62.5000 62.2500 |
| Subjects | surficial geology/geomorphology; geophysics; permafrost; ground ice; freezing ground; temperature; ground temperatures; climate, arctic; climatic fluctuations; climatology; radar methods; radar imagery;
terrain analysis; terrain types; Cenozoic; Quaternary |
| Illustrations | location maps; photographs; satellite imagery |
| Abstract | The status of permafrost is important for northern environmental and infrastructure monitoring. The use of D-InSAR for large area coverage of terrain stability in permafrost regions is rapidly gaining
acceptance. We present here D-InSAR derived terrain stability products for Yellowknife and Tuktoyaktuk in northern Canada and evaluate their information content. RADARSAT-2 data stacks are used to map the seasonal and year to year terrain movement.
The potential complication of InSAR signals detecting changing water levels in flooded vegetation is identified. Radar polarimetry is also explored for information content. While polarimetry can characterize surface structure and hence landcover,
D-InSAR, with its ability to detect active geomorphological processes, is deemed more immediately useful for monitoring permafrost environments. |
| GEOSCAN ID | 293607 |
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