Response of braiding channel morphodynamics to peak discharge changes in the Upper Yellow River

Schuurman Filip; Ta Wanquan; Post Sander; Sokolewicz Marius; Busnelli Marcela; Kleinhans Maarten

摘要

Abstract >The braiding intensity and dynamics in large braiding rivers are well known to depend on peak discharges, but the response in braiding and channel–floodplain transformations to changes in discharge regime are poorly known. This modelling study addresses the morphodynamic effects of increasing annual peak discharges in braiding rivers. The study site is a braiding reach of the Upper Yellow River. We estimated the effects on the larger‐scale channel pattern, and on the smaller‐scale bars, channel branches and floodplains. Furthermore, we determined the sensitivity of the channel pattern to model input parameters. The results showed that the dominant effect of a higher peak discharge is the development of chute channels on the floodplains, formed by connecting head‐cut channels and avulsive channels. Widening of the main channel by bank erosion was found to be less dominant. In addition, sedimentation on the bars and floodplains increased with increasing peak discharge. The model results also showed that the modelled channel pattern is especially sensitive to parametrization of the bed slope effect, whereas the effect of median grain size was found to be relatively small. Copyright ? 2018 John Wiley & Sons, Ltd. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”xml：id =“esp4344-abs-abs-0001”> <标题类型=“main” >摘要</标题> >大编织河流中的编织强度和动态众所周知，依赖于峰值放电，但编织和通道 - 洪泛区变换对放电方案的变化的响应是众所周知的。该建模研究解决了编织河流增加年高峰排放的形态学效应。研究现场是上黄河的编织范围。我们估计对较大尺度通道模式的影响，以及较小的尺度条，通道分支和泛洪平。此外，我们确定了通道模式的灵敏度以模拟输入参数。结果表明，较高峰值放电的显着效果是通过连接头切口和撕开通道形成的洪水平板上的斜槽通道的发展。通过银行侵蚀的主要渠道扩大占主导地位。此外，随着峰值放电的增加，条形和泛源极的沉降增加。模型结果还表明，模型通道图案对床斜率效应的参数化特别敏感，而发现晶粒尺寸的效果相对较小。版权？ 2018年John Wiley＆amp; SONS，LTD。</ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-22319/'>《Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group》</a> <b style="margin: 0 2px;">|</b><span>2018年第8期</span><b style="margin: 0 2px;">|</b><span>共15页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Schuurman Filip&option=202" target="_blank" rel="nofollow">Schuurman Filip;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ta Wanquan&option=202" target="_blank" rel="nofollow">Ta Wanquan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Post Sander&option=202" target="_blank" rel="nofollow">Post Sander;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sokolewicz Marius&option=202" target="_blank" rel="nofollow">Sokolewicz Marius;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Busnelli Marcela&option=202" target="_blank" rel="nofollow">Busnelli Marcela;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kleinhans Maarten&option=202" target="_blank" rel="nofollow">Kleinhans Maarten;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Rivers and CoastsRoyal HaskoningDHVAmersfoort The Netherlands;</p> <p>Key Laboratory of Desert and Desertification Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of SciencesLanzhou China;</p> <p>Department of Rivers and CoastsRoyal HaskoningDHVAmersfoort The Netherlands;</p> <p>Department of Rivers and CoastsRoyal HaskoningDHVAmersfoort The Netherlands;</p> <p>Department of Rivers and CoastsRoyal HaskoningDHVAmersfoort The Netherlands;</p> <p>Faculty of Geosciences Department of Physical GeographyUtrecht UniversityUtrecht The Netherlands;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yellow River&option=203" rel="nofollow">Yellow River;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=discharge regulation&option=203" rel="nofollow">discharge regulation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Delft3D&option=203" rel="nofollow">Delft3D;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=braiding&option=203" rel="nofollow">braiding;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=floodplain&option=203" rel="nofollow">floodplain;</a> </p> <div class="translation"> 机译：黄河;排放监管;Delft3d;编织;洪泛区; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" 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