00000nem 2200000za 4500 9.817962 CaOODSP 20230131161136 m go c f cr ||||||||||| 160811s2016 onca bd a fo 0 eng d 978-0-660-05477-3 CaOODSP eng eng fre n-cn-nu M183-1/291-2016E-PDF Short, N. H., 1975- Seasonal surface displacement derived from DInSAR, Rankin Inlet, Nunavut [electronic resource] / [authors, N. Short, A.-M. LeBlanc, and O. Bellehumeur-Génier]. Preliminary version Scale 1:35 000 ; Universal Transverse Mercator, zone 15 (W 92°28’--W 92°03'/N 62°54'15"--N 62°47’30") [Ottawa] : Natural Resources Canada, 2016. 1 map : col. + 1 map information document ([7] p.). Canadian geoscience map ; 291 Relief shown by contours. This record only includes the map and the “Map information document” in PDF, the complete data set with all the files in various formats is available for free download at http://geoscan.nrcan.gc.ca/ Includes bibliographical references. "This map shows the relative ground surface displacement between the major terrain units during one summer in the area of Rankin Inlet. The ground displacement was derived using differential interferometric synthetic aperture radar (DInSAR) data for the summer of 2015. DInSAR data came from the Canadian RADARSAT-2 satellite which operates with a C-band SAR. Stable ground represents locations where either no vertical change was calculated or where displacement was within the expected range of error (± 1.0 cm). Downward displacement represents, in general, ground surface lowering (subsidence) on the order of 1.0 to 2.5, 2.5 to 4.0, 4.0 to 6.0, 6.0 to 8.5, and 8.5 to 14.0 cm. Other possible causes of apparent downward displacement could be associated with downward surface water table movement throughout the summer and sediment erosion. Upward displacement represents a surface rise of 1.0 to 5 cm, which is only 0.3% of the total coverage of the DInSAR map. Areas of no data result from a loss of interferometric coherence. These are typically water and other relatively smooth surfaces from which there is no radar return, or where there has been significant ground surface disturbance and the radar returns cannot be correlated"--Abstract. Includes abstract in French. gccst Geological maps gccst Geomorphology gccst Surficial geology LeBlanc, A.-M. Bellehumeur-Génier, O. Canada. Natural Resources Canada. Geological Survey of Canada. Canadian geoscience map ; 291. (CaOODSP)9.506260 PDF 92.43 MB https://publications.gc.ca/collections/collection_2016/rncan-nrcan/M183-1-291-2016-eng.pdf Map PDF 153 KB https://publications.gc.ca/collections/collection_2016/rncan-nrcan/M183-1-291-2016-1-eng.pdf Map information document HTML N/A https://doi.org/10.4095/298815 GEOSCAN DOI 298815