The morphodynamics of sandy braided rivers are complicated by the presence of bedforms, which alter the spatial distribution of momentum, shear and sediment transport. These effects are not understood well and are typically simplified in morphodynamic models. This paper presents acoustic Doppler Current Profiler (aDcp) measurements of flow, and Unmanned Aerial Vehicle (UAV) photogrammetric surveys of a 600 m reach of the sandy braided South Saskatchewan River, Canada. The response of alluvial bedforms to varying flow direction, bed-slope and sediment availability is examined, and the use of bedform crestline tracking to estimate sediment transport direction is discussed.
|Original language||English (US)|
|Title of host publication||River Flow 2016|
|Subtitle of host publication||Iowa City, USA, July 11-14, 2016|
|Number of pages||6|
|State||Published - Jun 22 2016|
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