Predicting the Geothermal Heat Flux in Greenland: A Machine Learning Approach

Rezvanbehbahani Soroush; Stearns Leigh A.; Kadivar Amir; Walker J. Doug; van?der?Veen C. J.

摘要

Abstract >Geothermal heat flux (GHF) is a crucial boundary condition for making accurate predictions of ice sheet mass loss, yet it is poorly known in Greenland due to inaccessibility of the bedrock. Here we use a machine learning algorithm on a large collection of relevant geologic features and global GHF measurements and produce a GHF map of Greenland that we argue is within ～15% accuracy. The main features of our predicted GHF map include a large region with high GHF in central‐north Greenland surrounding the NorthGRIP ice core site, and hot spots in the Jakobshavn Isbr??catchment, upstream of Petermann Gletscher, and near the terminus of Nioghalvfjerdsfjorden glacier. Our model also captures the trajectory of Greenland movement over the Icelandic plume by predicting a stripe of elevated GHF in central‐east Greenland. Finally, we show that our model can produce substantially more accurate predictions if additional measurements of GHF in Greenland are provided. </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><抽象类型= “主要” 的xml：LANG = “en” 的XML：ID = “grl56684-ABS-0001”> <标题类型= “主”>抽象</ TITLE> <P>地热通量（GHF）是关键的边界条件使冰盖质量损失的准确预测，但它是在格陵兰岛知由于基岩的交通不便不佳。在这里，我们使用机器学习上收集了大量相关的地质特征和全球GHF测量算法和生产绿地的GHF地图，我们认为是〜15％的精度范围内。我们的预测GHF地图的主要特点包括用在格陵兰中央北围绕NorthGRIP冰芯站点，并在雅各布Isbr ??集水热点高GHF的大区域，彼得曼Gletscher的上游，并且Nioghalvfjerdsfjorden冰川的末端附近。我们的模型也将在格陵兰岛的东高架预测GHF的条纹捕捉格陵兰运动在冰岛羽的轨迹。最后，我们表明，我们的模型可以产生基本上更精确的预测，如果提供在格陵兰GHF的额外的测量。</ p> </抽象> </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-23539/'>《Geophysical Research Letters》</a> <b style="margin: 0 2px;">|</b><span>2017年第24期</span><b style="margin: 0 2px;">|</b><span>共9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=Rezvanbehbahani Soroush&option=202" target="_blank" rel="nofollow">Rezvanbehbahani Soroush;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Stearns Leigh A.&option=202" target="_blank" rel="nofollow">Stearns Leigh A.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kadivar Amir&option=202" target="_blank" rel="nofollow">Kadivar Amir;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Walker J. Doug&option=202" target="_blank" rel="nofollow">Walker J. Doug;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=van?der?Veen C. J.&option=202" target="_blank" rel="nofollow">van?der?Veen C. J.;</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 GeologyUniversity of KansasLawrence KS USA;</p> <p>Department of GeologyUniversity of KansasLawrence KS USA;</p> <p>Department of Mathematics and StatisticsMcGill UniversityMontréal Québec Canada;</p> <p>Department of GeologyUniversity of KansasLawrence KS USA;</p> <p>Department of Geography and Atmospheric SciencesUniversity of KansasLawrence KS USA;</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=Greenland ice sheet&option=203" rel="nofollow">Greenland ice sheet;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=geothermal heat flux&option=203" rel="nofollow">geothermal heat flux;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=machine learning&option=203" rel="nofollow">machine learning;</a> </p> <div class="translation"> 机译：格陵兰冰盖;地热热通量;机器学习; </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" href="/journal-foreign-detail/0704019849577.html">Predicting the Geothermal Heat Flux in Greenland: A Machine Learning Approach</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rezvanbehbahani Soroush&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Rezvanbehbahani Soroush,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Stearns Leigh A.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Stearns Leigh A.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kadivar Amir&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Kadivar Amir,</a> <a href="/journal-foreign-23539/" target="_blank" rel="nofollow" class="tuijian_authcolor">Geophysical Research Letters .</a> <span>2017</span><span>,第24期</span> </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：预测格陵兰的地热热通量：机器学习方法</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025565440.html">Constraining the geothermal heat flux in Greenland at regions of radar-detected basal water</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rezvanbehbahani Soroush&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Rezvanbehbahani Soroush,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Stearns Leigh A.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Stearns Leigh A.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Van der Veen C. 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