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TitleMonitoring permafrost environments with InSAR and polarimetry, case studies from Canada
AuthorShort, NORCID logo; Brisco, B; Murnaghan, K
SourceIEEE Transactions on Geoscience and Remote Sensing (Institute of Electrical and Electronics Engineers) 2012, 2012 p. 4034-4037,
Alt SeriesEarth Sciences Sector, Contribution Series 20130453
MeetingIEEE International Geoscience and Remote Sensing Symposium: Remote Sensing for a Dynamic Earth; Munich; DE; July 22-27, 2012
Mediapaper; on-line; digital
File formatpdf
ProvinceNorthwest Territories
NTS85J/07; 85J/08; 107C/08
AreaYellowknife; Tuktoyaktuk
Lat/Long WENS-133.0000 -132.0000 69.5000 69.2500
Lat/Long WENS-115.0000 -114.0000 62.5000 62.2500
Subjectssurficial 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
Illustrationslocation maps; photographs; satellite imagery
Released2012 07 01
AbstractThe 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.

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