| Title | Understanding permafrost conditions through integration of local and traditional observations and geoscience data in the region of Rankin Inlet, Nunavut |
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| Author | LeBlanc, A -M ;
Bellehumeur-Génier, O; Oldenborger, G; Tremblay, T |
| Source | Canada-Nunavut Geoscience Office, Summary of Activities 2016, 2016 p. 75-88  Open Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2016 |
| Alt Series | Earth Sciences Sector, Contribution Series 20160210 |
| Publisher | Canada-Nunavut Geoscience Office |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Nunavut |
| NTS | 55J; 55K; 55N; 55O |
| Area | Rankin Inlet |
| Lat/Long WENS | -92.6667 -91.6667 63.0667 62.8000 |
| Subjects | surficial geology/geomorphology; Nature and Environment; permafrost; mapping techniques; subsidence; thermokarst; glacial lakes; water levels; freezing ground; ground ice; ground temperatures; DInSAR;
gelifluction lobes |
| Illustrations | tables; graphs; photographs; satellite images |
| Program | Climate Change Geoscience Land-based Infrastructure |
| Released | 2016 01 01 |
| Abstract | This report follows a mapping workshop held in Rankin Inlet in February 2016 that focused on collecting local and traditional observations on permafrost in the region. A field campaign was held in
August 2016 in order to visit areas of interests identified by the workshop participants. The workshop and field observations were combined with geoscience data in a multidisciplinary approach to characterize permafrost in the area. Geoscience data
presented in this report include DinSAR imagery, historic water levels and climate records. Our analysis shows that surficial geology of undifferentiated till and marine sediments along with nearshore marine sediments exhibit greatest subsidence
based on the DinSAR mapping and thus have a higher potential for ground ice content. We determine that all water bodies experience inter-decennial surface area variability, but large (>14000 m2) and small (>3500 m2) water bodies exhibit the highest
occurrence of growth. Visits to workshop observation sites led to the validation of the occurrence of various permafrost related features or phenomenon that give important insight into ground conditions and the relationship to the surficial geology.
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| Summary | (Plain Language Summary, not published)
This report follows a mapping workshop held in Rankin Inlet in February 2016 that focused on collecting local and traditional observations on permafrost
in the region. A field campaign was held in August 2016 in order to visit areas of interests identified by the workshop participants. The workshop and field observations were combined with geoscience data in a multidisciplinary approach to
characterize permafrost in the area. Geoscience data presented in this report include satellite images, historic water levels and climate records. Our analysis shows that ground ice content may depend on local surficial. We determine that all water
bodies experience inter-decennial surface area variability, but large (>14000 m2) and small (>3500 m2) water bodies exhibit the highest occurrence of growth. Visits to workshop observation sites led to the validation of the occurrence of various
permafrost related features and phenomenon that give important insight into ground conditions and the relationship to the surficial geology. |
| GEOSCAN ID | 299312 |
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