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TitleSeasonal surface displacement derived from InSAR, Yellowknife and surrounding area, Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorShort, NORCID logo; Stevens, C W; Wolfe, S AORCID logo
SourceGeological Survey of Canada, Open File 7030, 2011, 11 pages; 1 CD-ROM, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
MapsPublication contains 1 map
Map Info.physiographic, displacement, 1:15,000
ProjectionUniversal Transverse Mercator Projection (NAD83)
MediaCD-ROM; on-line; digital
File formatreadme
File formatrtf; pdf; shp
ProvinceNorthwest Territories
Lat/Long WENS-114.4667 -114.3500 62.4833 62.4250
Subjectsgeophysics; environmental geology; surficial geology/geomorphology; Nature and Environment; remote sensing; displacement; permafrost; compaction; soil surveys; vegetation; sediment transport; transportation; RADARSAT-2; InSAR
ProgramClimate Change Geoscience
Released2011 12 14
AbstractSeasonal surface displacement was mapped by the Canada Centre for Remote Sensing and the Geological Survey of Canada for Yellowknife and the surrounding area using satellite interferometric synthetic aperture radar (InSAR). RADARSAT-2 Ultra-fine scenes acquired on May 21, July 8, August 1, August 25 and September 18, 2010, were interferometrically stacked and the total amount of summer vertical displacement was calculated. This open file presents the relative surface displacement in both map and digital ArcGIS form. The calculated values are portrayed in terms of relative displacement that has been classified as stable, low and medium downward displacement and upward displacement. At some locations a significant change in surface characteristics results in a loss of interferometric coherence and no values were calculated. Surface displacement may be from natural and human-induced processes.
This dataset provides spatial context for the variability and relative magnitude of seasonal surface displacement within the Yellowknife area.

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