CGRG Bibliography of Canadian Geomorphology
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Author : Bryan, R.B.; and Campbell, I.A.
Date : 1982
Title : Surface flow and erosional processes in semiarid mescoscale channels and drainage basins
Publication : Recent Developments in the Explanation and Prediction of Erosion and Sediment Yield; IAHS Publication. Proceedings of a Symposium at the First Scientific General Assembly of the IAHS, July 19-30, 1982, Exeter, England
Issue : 137:
Page(s) : 123-133
Abstract
Detailed studies of surface flow and initiation of channels and drainage networks are facilitated in badlands where barren, rapidly eroded surfaces offer ideal sites for micro and mesoscale experiments. A study was carried out in the Dinosaur badlands of Alberta to establish the relationship between microscale processes and the hydrologic and sediment budgets for a typical mesoscale badland basin. The study shows a considerable range of responses in erosion rates and sediment and runoff yields at various scales. At the microscale, the response of desiccated shales depends on the detailed interaction of raindrop impact, particle detachment, surface sealing and subsurface flow, while indurated sandstones and pediments yield flow and sediment almost instantly, even under low rainfall. The water and sediment flows form a complex system and different response thresholds pose considerable problems for precise monitoring in mesoscale basins
Bibliography of Canadian Geomorphology