Investigating the Recent Surge in the Monomah Glacier, Central Kunlun Mountain Range with Multiple Sources of Remote Sensing Data
Investigating the Recent Surge in the Monomah Glacier, Central Kunlun Mountain Range with Multiple Sources of Remote Sensing Data
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利用多源遥感数据调查中昆仑山脉莫诺玛冰川近期的激增
DOI：
10.3390/rs12060966
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发表时间：
2020-03
期刊：
影响因子：
5
通讯作者：
Wei Wang
中科院分区：
文献类型：
--
作者：
Lei Guo;Jia Li;Lixin Wu;Zhiwei Li;Yanyang Liu;Xin Li;Zelang Miao;Wei Wang
布卡塔奇地块的几个冰川是浪涌型的。但该地区以往的研究主要集中在冰川面积和长度变化上，需要更多的信息来支持对冰川涌动的深入分析。我们根据TanDEM-X，ALOS/PRISM，Sentinel-1A和Landsat图像确定了该地区冰川厚度，运动和表面特征的变化。我们的研究结果表明，布卡塔奇地块最大的冰川莫诺玛冰川最近的激增始于2009年初，并于2016年底停止。2009 - 2016年，冰舌面积和长度分别增加了6.27 km 2和1.45 km，冰舌经历了侧向加宽（2009-2010年）、快速推进（2010-2013年）和缓慢扩张（2013-2016年）3个变化时期。在2000-2012年期间，其堆积区变薄了50 m，而冰舌增厚了90 m。在2015-2017年期间，其流速从1.2 m/d降低到0.25 m/d，夏季流速远高于冬季流速。我们的结论是，最近的莫诺玛冰川激增是热控制。冰下温度上升到压力熔点，因为大量的物质积累，然后增加的基础融水引起的激增。
Several glaciers in the Bukatage Massif are surge-type. However, previous studies in this region focused on glacier area and length changes, and more information is needed to support the deep analysis of glacier surge. We determined changes in glacier thickness, motion, and surface features in this region based on TanDEM-X, ALOS/PRISM, Sentinel-1A, and Landsat images. Our results indicated that the recent surge of the Monomah Glacier, the largest glacier in the Bukatage Massif, started in early 2009 and ceased in late 2016. From 2009 to 2016, its area and length respectively increased by 6.27 km2 and 1.45 km, and its ice tongue experienced three periods of changes: side broadening (2009–2010), rapid advancing (2010–2013), and slow expansion (2013–2016). During 2000–2012, its accumulation zone was thinned by 50 m, while its ice tongue was thickened by 90 m. During 2015–2017, its flow velocity reduced from 1.2 to 0.25 m/d, and the summer velocities were much higher than winter velocities. We conclude that the recent Monomah Glacier surge is thermal-controlled. The subglacial temperature rose to the pressure-melting point because of substantial mass accumulation, and then the increased basal meltwater caused the surge.
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影响因子：
4
作者：
I. Lønne
通讯作者：
I. Lønne
DOI：
--
发表时间：
2017
期刊：
--
影响因子：
--
作者：
T. Bolch;T. Pieczonka;Kriti Mukherjee;J. Shea
通讯作者：
T. Bolch;T. Pieczonka;Kriti Mukherjee;J. Shea
影响因子：
1.9
作者：
J. Dowdeswell;T. Benham
通讯作者：
J. Dowdeswell;T. Benham
DOI：
10.2307/1551118
发表时间：
1981-01
期刊：
Arctic and alpine research
影响因子：
--
作者：
R. Armstrong;W. Paterson
通讯作者：
R. Armstrong;W. Paterson
影响因子：
3.4
作者：
Guo, Wanqin;Liu, Shiyin;Jiang, Zongli
通讯作者：
Jiang, Zongli