Meander definition8/19/2023 Meandering rivers trend in the direction of increasing sinuosity. Braided rivers do not follow this same convention. Between these values, a river is described as sinuous which describes those in a transitory state between the two states. A sinuosity value of less than 1.1 is a “straight” river. Meandering rivers have a sinuosity value/ratio of greater than 1.5. ![]() Three conventional categorizations of rivers or their reaches exist. It is expressed as the ratio of the distance between two distant points in a river following the middle-of-the-river course of the river as compared with the straight distance between those points. The term is equally used to describe the actual incidence of and potential tendency of a river to curve or meander over its length. Rivers are commonly described and interpreted by their sinuosity. On the inside bend of a river, the level is lower, secondary flow moves sand and gravel across the river bed creating shallows and point bars, and friction of air and perturbances of the bed act against a higher proportion of the column of water, being shorter, slowing the water to varying degrees. Meandering rivers flow higher and hence with more total flow, pressure and erosion on the outside of their bends due to forming a vortex as in a stirred coffee cup and consequently the river erodes more the outer bank. Rivers form meanders as they flow laterally downstream, see sinuosity. Cutoffs are a natural part of the evolution of a meandering river. The steeper drop in gradient (slope) causes the river flow gradually to abandon the meander which will silt up with sediment from deposition. I have understood that it was, to the last, her proudest boast, that she never had been on the water in her life, except upon a bridge and that over her tea (to which she was extremely partial) she, to the last, expressed her indignation at the impiety of mariners and others, who had the presumption to go meandering about the world.Animation of the formation of an oxbow lakeĪ meander cutoff is a natural form of a cutting or cut in a river occurs when a pronounced meander (hook) in a river is breached by a flow that connects the two closest parts of the hook to form a new channel, a full loop. I might have a misgiving that I am meandering in stopping to say this, but that it brings me to remark that I build these conclusions, in part upon my own experience of myself and if it should appear from anything I may set down in this narrative that I was a child of close observation, or that as a man I have a strong memory of my childhood, I undoubtedly lay claim to both of these characteristics. (Frankenstein, by Mary Wollstonecraft Shelley) In one spot you view rugged hills, ruined castles overlooking tremendous precipices, with the dark Rhine rushing beneath and on the sudden turn of a promontory, flourishing vineyards with green sloping banks and a meandering river and populous towns occupy the scene. ![]() ![]() She always returned, with greater emphasis and with an instinctive knowledge of the strength of her objection, “Let us have no meandering.” (NASA's Juno Mission Detects Jupiter Wave Trains, NASA) Other fronts in similar wave trains tilt significantly with respect to the orientation of the wave train, and still other wave trains follow slanted or meandering paths.
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