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  • 标题:Factors Controlling The Distribution of Mountain Permafrost in The Northern Hemisphere and Their Influence on Sediment Transfer
  • 其他标题:Factors Controlling The Distribution of Mountain Permafrost in The Northern Hemisphere and Their Influence on Sediment Transfer
  • 本地全文:下载
  • 作者:Bernd Etzelmüller ; Regula Frauenfelder
  • 期刊名称:Arctic, Antarctic, and Alpine Research
  • 印刷版ISSN:1523-0430
  • 电子版ISSN:1938-4246
  • 出版年度:2009
  • 卷号:41
  • 期号:1
  • 页码:48-58
  • DOI:10.1657/1523-0430-41.1.48
  • 摘要:The distribution of mountain permafrost in the northern hemisphere depends on topographic and climatic factors, ranging from the maritime conditions of Iceland over transitional conditions in southern Norway to continental conditions in Mongolia, and from alpine mountains to paleic mountains. This study discusses the different environmental factors that govern permafrost distribution based on personal studies and a literature review. It is hypothesized that the thermal state of the ground is an important parameter to understand the time and spatial scale of sediment transfer and landscape development in cold mountainous regions. This is exemplified for the cases of rock walls, glacier forefields, rock glaciers, and the case of sediment remobilization due to glacier advance. The authors propose that thorough knowledge of the ground thermal regime is an important basis for addressing sediment budgets in space and time.
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