Why do large, deep rivers have low-angle dune beds?
Abstract
Dunes are the most common bedform in sand-bedded rivers. Small, high-angle dunes (HADs) dominate in shallow (<2.5 m) flows and have lee sides with steep downstream-facing slipfaces (>24°) and reversed upslope-oriented flow in the separation vortex. In contrast, large, deep (>2.5 m) rivers have low-angle dunes (LADs) with gentle lee-side slipfaces (<24°; often <10°), little or no flow separation, and more-pronounced downslope...
Paper Details
Title
Why do large, deep rivers have low-angle dune beds?
Published Date
Aug 20, 2019
Journal
Volume
47
Issue
10
Pages
919 - 922
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