00000nam 2200000zi 4500 9.917176 CaOODSP 20251031142448 m o d f cr mn||||||||| 221110t20212021oncab ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-yk n-cn-nt M183-2/8751E-PDF Sladen, W. E., author. Geomorphologic feature mapping methodology developed for the Dempster Highway and Inuvik to Tuktoyaktuk Highway corridors / W.E. Sladen, R.J.H. Parker, S.V. Kokelj, and P.D. Morse. [Ottawa] : Geological Survey of Canada, 2021. ©2021 1 online resource (56 pages) : illustrations (chiefly colour), colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Open file, 2816-7155 ; 8751 Includes bibliographical references (pages 49-56). "In 2017, the Geological Survey of Canada and the Northwest Territories Geological Survey collaboratively developed a robust methodology to classify and digitize geomorphic features in permafrost terrain using high-resolution imagery. A 10-km wide corridor centred on the Dempster Highway and Inuvik to Tuktoyaktuk Highway was used to develop and test the methodology. The 875-km-long corridor traverses a variety of geological and physiographic terrain types, including glaciated and non-glaciated terrain. Permafrost here is continuous. However, variation in climate, relief, ecology, and disturbance have produced a diverse range of periglacial conditions. We selected five test sections representative of terrain along the study corridor. The main geomorphic categories are mass movement, hydrological, and periglacial. We used high-resolution (0.6 m) satellite imagery to generate stereo pairs for 3D visualization. Geomorphic features were digitized in ArcGIS. We customized Python scripts to populate the attributes for each geomorphic feature. This Open File provides a background on the physical context and physiographic terrain of the study corridor. The report presents the geomorphic feature identification and digitization methodology and summarizes the results from the test section mapping and its limitations"--Abstract, page i. Geomorphological mapping Yukon. Geomorphological mapping Northwest Territories. Digital mapping. Cartographie géomorphologique Yukon. Cartographie géomorphologique Territoires du Nord-Ouest. Cartographie par ordinateur. Geological Survey of Canada, issuing body. Open file (Geological Survey of Canada) 8751. (CaOODSP)9.506878 PDF 108.41 MB https://publications.gc.ca/collections/collection_2023/rncan-nrcan/m183-2/M183-2-8751-eng.pdf (report) HTML N/A https://doi.org/10.4095/328181 (complete dataset)