Preferential groundwater flow through a sorted net landscape, Arctic Canada
作者： Robert Hodgson , Kathy L. Young
DOI: 10.1002/1096-9837(200103)26:3<319::AID-ESP176>3.0.CO;2-1
关键词: Particle sorting 、 Hydraulic conductivity 、 Patterned ground 、 Groundwater flow 、 Frost 、 Water flow 、 Hydrology 、 Arctic 、 Geology
摘要: Preferential suprapermafrost groundwater flow was observed in deepened channels lying between raised frost mounds. Here, saturated hydraulic conductivity, k, ranged from 90 to 1000 m/day but only 0·1–1·0 the mound centres. A high proportion of fines occurs centre due particle sorting, while contain gravels. Three approaches areal weighting k and flow, Qs, across a wetland–upland boundary were explored. When percentage area covered by channels, mounds or gravel considered, estimates water on daily seasonal basis fell 30 50 per cent. This study is relevance northern scientists who require reliable patterned ground landscapes. Copyright © 2001 John Wiley & Sons, Ltd.
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