Fluvial Landforms and Processe2

Fluvial Landforms and Processe2 - Fluvial Landforms and...

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Fluvial Landforms and Processes Fluvial Morphology the spatial expression of fluvial geomorphic processes as channel, network and basin morphologies Channel geometry significant difference between bedrock (structurally controlled) versus alluvial(adjustable) channels 1. plan view a. meandering sinuous single thread, the most stable and efficient channel geometry (least variable energy distribution) to conduct water and sediment over any surface (e.g. supraglacial streams formed and maintained by erosion of banks and deposition on point bars b. braided multiple thread, superimposed meandering channels as discharge and sediment load vary seasonally and diurnally, e.g. semiarid and proglacial streams bars reforms during flood stage, deposition during falling stage that splits subsequent flow different hydraulic geometry at different stages c. anatomosing permanent multiple channels and mid-channel bars channel width increases and depth decreases below a threshold for
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Fluvial Landforms and Processe2 - Fluvial Landforms and...

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