• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium on the protection and restoration of urban and rural streams >Meander Geometry and Sinuosity Relationships of Urbanized Beal Slough in Lincoln, Nebraska
【24h】

Meander Geometry and Sinuosity Relationships of Urbanized Beal Slough in Lincoln, Nebraska

机译：林肯，内布拉斯加州城市化青泥的曲折几何关系与渊源关系

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In streams and rivers, meanders trend to the form of sine-generated curves. This shape has demonstrated that it is the most hydraulically efficient form for turning water. The perceived relationships between stream width, riffle spacing, meander wavelength and radius of curvature are remarkably consistent for streams and rivers throughout the world. Sinuosity is commonly defined as the ratio of straight valley length to actual length of the stream. In this paper, we define specific meander sinuosity as the ratio of as small as one meander channel length to the straight axis of the particular meander. For the actively remeandering urban reach of Beal Slough, we compared meander radius/bankfull-dominant discharge width ratio and meander wavelength/bankfull-dominant discharge width to specific meander sinuosity. The comparison of historic data of the then rural reach revealed a phase shift between the wavelength/width and radius/width ratios and the specific meander sinuosity. However, the comparison of recent data indicated that the phase shift was not well established. This phase shift of historic data has a striking resemblance to how the channel centerline lags behind the discharge flowline of stream and rivers. Further, these relationships show the promise as acting as predictors of stream health and the qualitative rate of meandering.
机译：在溪流和河流中，含义趋势的正弦曲线形式。这种形状表明它是用于转换水的最液压有效的形式。流宽度，升压间距，曲折波长和曲率半径之间的感知关系对于整个世界的流和河流非常一致。陷阱通常被定义为直流长度与流的实际长度的比率。在本文中，我们将特定的曲折索引定义为小于一个曲折通道长度与特定曲折的直轴的比率。对于积极搬迁的Bal Beal Slough的城市覆盖范围，我们将曲折半径/银行主导排放宽度比与曲折波长/银行的优势排放宽度与特定的曲折陷性。当时农村达到的历史数据的比较揭示了波长/宽度和半径/宽度比和特定曲折陷性之间的相移。然而，最近数据的比较表明相移不是很好的。历史数据的这种阶段偏移与通道中心线如何在流和河流的放电流程线后面滞后，这一阶段相似。此外，这些关系表明，承诺作为行为作为流健康的预测因子和曲折的定性率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号