Mountain permafrost 鈥?research frontiers and a special long-term challenge

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• 作者：Wilfried Haeberli
• 关键词：High mountains ; Permafrost ; Slope stability ; Natural hazards ; Climate change
• 刊名：Cold Regions Science and Technology
• 出版年：December, 2013
• 年：2013
• 卷：96
• 期：Complete
• 页码：71-76
• 全文大小：2246 K

文摘

Advanced methodologies such as core drilling, borehole logging/monitoring, geophysical tomography, high-precision photogrammetry, laser altimetry, GPS/SAR surveying, miniature temperature data logging, geotechnical laboratory analyses, numerical modelling, or GIS-based simulation of spatial distribution patterns in complex topography at regional to global scales have created a rapidly increasing knowledge basis concerning permafrost in cold mountain ranges. Based on a keynote presentation about mountain permafrost at CFG8 in Obergurgl 2012, a brief summary is provided concerning primary research frontiers and the long-term challenge related to the increasing probability of far-reaching flood waves in high-mountain regions originating at newly forming lakes as a consequence of large rock falls and landslides from destabilising steep rock walls with conditions of warming and degrading permafrost often in combination with de-buttressing by vanishing glaciers. Research is especially intense in the densely populated European Alps.