The suitability of using ASTER GDEM2 for terrain-based extraction of stream channel networks in a lowland Arctic permafrost catchment

• Main Authors: Anna Maria Trofaier, W Gareth Rees
• Format: Article in Journal/Newspaper
• Language: English
• Published: Geographical Society of Finland 2015
• Subjects: Yamal Peninsula; ASTER GDEM2; DUE Permafrost DEM; validation; GIS; stream channel extraction; Geography (General); G1-922; Arctic; permafrost
• Online Access: https://doaj.org/article/ae881143cac64919a4165fd2c1f9cb69

Seasonally inundated areas and water-saturated soils are common features of lowland Arctic and sub-Arctic permafrost environments. With the onset of snow melt, and water percolation down through the snowpack, a principal factor controlling stream channel flow, aside from active layer depth, is topog...