On the nature of “periodic” river bends

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• 作者：V. G. Zavodinsky ; O. A. Gorkusha
• 关键词：bends ; sinuosity ; physical model ; gravitation ; obstacles
• 刊名：Water Resources
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：43
• 期：1
• 页码：73-78
• 全文大小：407 KB
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• 作者单位：V. G. Zavodinsky (1)
  O. A. Gorkusha (2)
  
  1. Institute for Material Studies, Khabarovsk Scientific Center, Far East Branch, Russian Academy of Sciences, Tikhookeanskaya ul. 153, Khabarovsk, 680042, Russia
  2. Khabarovsk Branch, Institute of Applied Mathematics, Far East Branch, Russian Academy of Sciences, ul. Dzerzhinskogo 54, Khabarovsk, 680000, Russia
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Hydrogeology
  Waste Water Technology, Water Pollution Control, Water Management and Aquatic Pollution
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-344X

文摘

The formation of bends (meanders) can be described by a simple physical model, according to which, water flow in a gentle valley with gentle slopes, once deflected by a random obstacle, starts oscillating from one slope to another, while keeping moving down the valley. The sinuosity of the river (the ratio of the path along its channel to the direct path along the valley) depends on the ratio of the steepness of the slopes and the valley; the mean sinuosity is close to 1.5 in accordance with the available geographic data. Keywords bends sinuosity physical model gravitation obstacles