Precursor Motion to Iceberg Calving at Jakobshavn Isbræ, Greenland, Observed with Terrestrial Radar Interferometry
JOURNAL OF GLACIOLOGY(2016)
摘要
Time-varying elevations near the calving front of Jakobshavn Isbrae, Greenland were observed with a terrestrial radar interferometer (TRI) in June 2015. An ice block with surface dimensions of 1370 m x 290 m calved on 10 June. TRI-generated time series show that ice elevation near the calving front began to increase 65 h prior to the event, and can be fit with a simple block rotation model. We hypothesize that subsurface melting at the base of the floating terminus breaks the gravity-buoyancy equilibrium, leading to slow subsidence and rotation of the block, and its eventual failure.
更多查看译文
关键词
glacier calving,ice block rotation,Lagrangian coordinates,subsurface melting,terrestrial radar interferometry
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要