| Titre | Monitoring permafrost environments with InSAR and polarimetry, case studies from Canada
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| Auteur | 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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| Année | 2012 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20130453 |
| Éditeur | IEEE |
| Réunion | IEEE International Geoscience and Remote Sensing Symposium: Remote Sensing for a Dynamic Earth; Munich; DE; juillet 22-27, 2012 |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1109/IGARSS.2012.6350524 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Province | Territoires du Nord-Ouest |
| SNRC | 85J/07; 85J/08; 107C/08 |
| Région | Yellowknife; Tuktoyaktuk |
| Lat/Long OENS | -133.0000 -132.0000 69.5000 69.2500 |
| Lat/Long OENS | -115.0000 -114.0000 62.5000 62.2500 |
| Sujets | pergélisol; glace fossile; congélation du sol; temperature; températures au sol; climat arctique; fluctuations climatiques; climatologie; méthodes radar; imagerie radar; analyse de terrains; types de
terrain; géologie des dépôts meubles/géomorphologie; géophysique; Cénozoïque; Quaternaire |
| Illustrations | cartes de localisation; photographies; imagerie satellitaire |
| Diffusé | 2012 07 01 |
| Résumé | (disponible en anglais seulement)
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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