Proglacial erosion rates and processes in a glacierized catchment in the Swiss Alps

Delaney Ian; Bauder Andreas; Huss Matthias; Weidmann Yvo

摘要

Abstract >In the Swiss Alps, climatic changes have not only caused glacier retreat, but also likely increased sedimentation downstream of glaciers. This material either originates from below the glacier or from periglacial environments, which are exposed as glaciers retreat, and often consist of easily erodible sediment. Griesgletscher's catchment in the Swiss Alps was examined to quantify erosion in the proglacial area, possible hydrological drivers and contributions of the sub‐ and periglacial sources. Digital elevation models, created from annual aerial photographs, were subtracted to determine annual volume changes in the proglacial area from 1986 to 2014. These data show a strong increase in proglacial erosion in the decade prior to 2012, coincident with increasing proglacial area size. However, examination of the gradient between discharge and sediment evacuation, and modeled sediment transport, could suggest that the proglacial area began to stabilize and sediment supply is limited. The large influx of sediment into the proglacial reservoir, which is roughly 2.5 times greater than the amount of sediment eroded from the proglacial area, demonstrates the importance of subglacial erosion to the catchment's sediment budget. Although far more sediment originates subglacially, erosion rates in the proglacial area are over 50 times greater than the rest of the catchment. In turn, both sub‐ and periglacial processes, in addition to constraining sediment supply, must be considered for assessing future sediment dynamics as glacier area shrinks and proglacial areas grow. ?? 2017 The Authors. Earth Surface Processes and Landforms published by 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>None </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4期</span><b style="margin: 0 2px;">|</b><span>共14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=Delaney Ian&option=202" target="_blank" rel="nofollow">Delaney Ian;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Bauder Andreas&option=202" target="_blank" rel="nofollow">Bauder Andreas;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Huss Matthias&option=202" target="_blank" rel="nofollow">Huss Matthias;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Weidmann Yvo&option=202" target="_blank" rel="nofollow">Weidmann Yvo;</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>Laboratory of HydraulicsHydrology and Glaciology (VAW)ETH‐Zürich Zürich Switzerland;</p> <p>Laboratory of HydraulicsHydrology and Glaciology (VAW)ETH‐Zürich Zürich Switzerland;</p> <p>Laboratory of HydraulicsHydrology and Glaciology (VAW)ETH‐Zürich Zürich Switzerland;</p> <p>Laboratory of HydraulicsHydrology and Glaciology (VAW)ETH‐Zürich Zürich Switzerland;</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=periglacial processes&option=203" rel="nofollow">periglacial processes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=glacial sediment&option=203" rel="nofollow">glacial sediment;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=alpine sediment dynamics&option=203" rel="nofollow">alpine sediment dynamics;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=alpine hydrology&option=203" rel="nofollow">alpine hydrology;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=glacier retreat&option=203" rel="nofollow">glacier retreat;</a> </p> <div class="translation"> 机译：褶皱过程;冰川沉积物;高山沉积物动态;高山水文;冰川撤退; 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initial;"> <span>机译：工业和艺术过程及其在施工阶段的侵蚀率以及古迹和人工制品 </span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06130449104899.html">Data structure in a storage medium, rate in layers, the process to build a rate in layers distribuu00ecdo in blocks in a system of file management of the database.Processes to build a rate on the keys of the data records, to access a data record researched r by key K in the rate in layers.To insert a data record r by the key K in the rate on layers, and to delete a data record r by the key K in the rate in layers, the data processing system.Processes to insert a new data record in a file PAIF exists, and to obtain a rate PAIF balanced, and.The storage medium used by a system of file management of database.</a> <b>[P]</b> . <span> 外国专利：  BR9907227A </span> <span> . 2001-09-04</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：存储介质中的数据结构，层级速率，层级速率建立过程在数据库文件管理系统中以块形式分布。在数据记录的键上建立速率，访问数据的过程数据记录系统按层中的比率按键K来研究r。要通过层比率中的键K插入数据记录r，并按层比率按K来删除数据记录r，数据处理系统存在在文件PAIF中插入新数据记录并获得PAIF均衡速率的过程，以及数据库文件管理系统所使用的存储介质。 </span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130461122020.html">9-substituted compounds of 3, 11-epoxy-3,4,5,5a,6, 7, 8,8a,9,11,11a-undecahydro-3,6.alp ha.,9-trimethylfurano3,4-j1, 2 benzodioxepin, processes for their preparation and their use as antiprotozoal and antiviral agents</a> <b>[P]</b> . <span> 外国专利：  US5246930A </span> <span> . 1993-09-21</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：3，11-环氧-3,4,5,5a，6,7,8,8a，9,11,11a-undecahydro-3,6.alp，9,9-三甲基呋喃[9,4]的9-取代的化合物[3,4 -j] [1，2]苯并二恶英，其制备方法及其作为抗原生动物和抗病毒药的用途 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: 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