GLGY 353 Study Guide - Final Guide: Pleistocene, Accumulation Zone, Glacier Morphology

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Characteristics of, and differences between, single-channel (meandering) and braided rivers pattern, gradient, sed load, dynamism, flow velocity, width-depth ratio. Braided rivers have larger sediment sizes, lower stability, larger sediment load, higher velocity, higher gradient and larger width than a meandering river. Concept of river equilibrium . adjustment between sed loat, discharge, gradient. A stream naturally adjusts its gradient or slope as discharge or velocity changes. The meaning of a flood plain is just that. They are constructed by the river and hint at the maximum size of load. Q=v x d x w v=velocity (m/s) d=depth (m) w=width (m) Downstream relationships of width, depth, velocity to discharge. Width, depth, velocity and discharge all increase as we go downstream. As discharge increases, all three variables increase to make up for the change; this is called hydraulic geometry. Peak in early may to account for snowmelt. May be subsequent peaks in ~july for summer storms.

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