An investigation of the thermomechanical features of Laohugou Glacier No. 12 on Qilian Shan, western China, using a two-dimensional first-order flow-band ice flow model
作者: Y. WangY. WangT. ZhangT. ZhangJ. RenX. QinY. LiuW. SunJ. ChenJ. ChenM. DingW. DuW. DuD. Qin
作者单位: 1tate Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
2University of Chinese Academy of Sciences, Beijing 100049, China
3Institute of Polar Meteorology, Chinese Academy of Meteorological Sciences, Beijing 100081, China
4now at: Fluid Dynamics and Solid Mechanics Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
5State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environm
刊名: The Cryosphere, 2018, Vol.12 , pp.851-866
来源数据库: Directory of Open Access Journals
DOI: 10.5194/tc-12-851-2018
原始语种摘要: By combining in situ measurements and a two-dimensional thermomechanically coupled ice flow model, we investigate the thermomechanical features of the largest valley glacier (Laohugou Glacier No. 12; LHG12) on Qilian Shan located in the arid region of western China. Our model results suggest that LHG12, previously considered as fully cold, is probably polythermal, with a lower temperate ice layer overlain by an upper layer of cold ice over a large region of the ablation area. Modelled ice surface velocities match well with the in situ observations in the east branch (main branch) but clearly underestimate those near the glacier terminus, possibly because the convergent flow is ignored and the basal sliding beneath the confluence area is underestimated. The modelled ice temperatures are in...
全文获取路径: DOAJ  (合作)
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关键词翻译
关键词翻译
  • western 谓的
  • polythermal 多种燃料
  • glacier 冰川
  • underestimate 低估
  • meltwater 溶雪水
  • dimensional 量纲的
  • summer 
  • features 特征
  • accumulation 堆积
  • China 中国