![]() ![]() The curvature varies from a maximum at the apex to zero at a crossing point (straight line), also called an inflection, because the curvature changes direction in that vicinity. In contrast to sine waves, the loops of a meandering stream are more nearly circular. The maximum distance from the down-valley axis to the sinuous axis of a loop is the meander width or amplitude. ![]() The distance of one meander along the down-valley axis The meander is two consecutive loops pointing in opposite transverse directions. Two consecutive crossing points of sinuous and down-valley axesĭefine a meander loop. This axis represents the overall direction of the stream.Īt any cross-section the flow is following the sinuous axis, the centerline of the bed. The bankfull width is the distance across the bed at an average cross-section at the full-stream level, typically estimated by the line of lowest vegetation.Īs a waveform the meandering stream follows the down-valley axis, a straight line fitted to the curve such that the sum of all the amplitudes measured from it is zero. Ideal waveforms, such as a sine wave, are one line thick, but in the case of a stream the width must be taken into consideration. It is characterized as an irregular waveform. The technical description of a meandering watercourse is termed meander geometry or meander planform geometry. In the Turkish name, the Büyük Menderes River, Menderes is from "Meander". It flows through a graben in the Menderes Massif, but has a flood plain much wider than the meander zone in its lower reach. The Meander River is located south of Izmir, east of the ancient Greek town of Miletus, now, Milet, Turkey. Strabo said: ". its course is so exceedingly winding that everything winding is called meandering." As such, even in Classical Greece (and in later Greek thought) the name of the river had become a common noun meaning anything convoluted and winding, such as decorative patterns or speech and ideas, as well as the geomorphological feature. The term derives from a river located in present-day Turkey and known to the Greeks as ( Μαίανδρος) Maiandros or Maeander, characterised by a very convoluted path along the lower reach.
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