| Titre | Insar monitoring of permafrost activity in the lower mackenzie valley, Canada |
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| Auteur | Alasset, P -J; Poncos, V; Singhroy, V; Couture, R |
| Source | IEEE International Geoscience and Remote Sensing Symposium proceedings vol. 3, no. 1, 4779401, 2008 p. III530-III533, https://doi.org/10.1109/IGARSS.2008.4779401 |
| Année | 2008 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20181941 |
| Éditeur | IEEE |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1109/IGARSS.2008.4779401 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Sujets | télédétection; géophysique |
| Programme | GEM2 : La géocartographie de l'énergie et des minéraux |
| Diffusé | 2008 01 01 |
| Résumé | (disponible en anglais seulement)
The region of interest is located approximately in the downstream part of the Mackenzie River, Canada. Our study focuses on guidelines to process RADARSAT-1
interferometric C-band data in a permafrost environment and monitor permafrost activity and landslide motion over 18 month period. From the interferometric method (D-InSAR) on ?100 interferograms, the main conclusions are (1) a high resolution
Digital Elevation Models (DEM) and a shorter satellite revisit time intervals are essential to ensure InSAR processing accuracy for small deformations associated with permafrost activity; (2) the permafrost has sustained several changes over a year
of monitoring (thaw starting during end of April-mid of May, and freezing around mid October). The deformation peak is reached in the summer time between mid of May and July (up to 15 ± 2mm). This method will provide a guideline for In SAR monitoring
of similar areas in permafrost environment. |
| GEOSCAN ID | 312296 |
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