Sensitivity and path dependence of mountain permafrost systems

Sensitivity and path dependence of mountain permafrost systems
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山区多年冻土系统的敏感性和路径依赖性

DOI:
10.1111/j.1468-0459.2011.00423.x
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发表时间:
2011
期刊:
Geografiska Annaler: Series A, Physical Geography
影响因子:
--
通讯作者:
Krautblatter
Krautblatter
中科院分区:
--
文献类型:
--
作者:
Verleysdonk;Krautblatter

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Verleysdonk,S.,Krautblatter,M.和Dikau,R.,2011.山地永久冻土系统的敏感性和路径依赖性。地理年鉴:A辑,自然地理,93,113-135。DOI(文件名称):10.1111/j.1468 - 0459.2011.00423.x摘要本文试图将经典的地貌学概念-Brunsden和Thornes的敏感性概念-转移到山地永久冻土系统中。重点放在施加在系统上的脉冲及其随后的响应上。系统状态、灵敏度和电阻率之间的比率以及所有系统组件和外部脉冲被理解为在空间和时间上是可变的。为了解决敏感性和路径依赖在山区冻土系统,不仅是目前的系统配置,但也要分析其历史发展和可能的未来吸引。重要的元素是系统配置、可变脉冲和阈值、过程和过程速率以及内部反馈。在德国/奥地利边境的北方石灰质阿尔卑斯山的楚格峰被选为试验场的敏感性概念的山区永冻土系统的适用性,由于进行了大量的研究和气候变化对冰缘系统的重大影响。进一步的方面包括在3700 bpin的路径依赖和地貌响应时间方面的后果Eibsee Bergsturz事件。通过这种概念方法,我们希望(1)加强冰缘地貌学与地貌学其他子学科之间的联系,(2)有助于加强冰缘地貌学的概念基础,因此,(3)加强冰冻圈研究社区内整体交流的可能性。
Verleysdonk, S., Krautblatter, M. and Dikau, R., 2011. Sensitivity and path dependence of mountain permafrost systems.Geografiska Annaler: Series A, Physical Geography, 93, 113–135. DOI: 10.1111/j.1468‐0459.2011.00423.xAbstractThis article is an attempt to transfer a classical geomorphological concept – the sensitivity concept by Brunsden and Thornes – onto mountain permafrost systems. Focus is put on the impulses applied on the system and its subsequent response. The system state, the ratio between sensitivity and resistivity, as well as all system components and the external impulses are understood to be variable in space and time. In order to address sensitivity and path dependence in mountain permafrost systems, not only the present system configuration but also their historical development and possible future attractors have to be analysed. Important elements are the system configuration, variable impulses and thresholds, processes and process rates and internal feedbacks. The Zugspitze in the Northern Calcareous Alps at the German/Austrian border is chosen as a test site for the applicability of the sensitivity concept on mountain permafrost systems due to the high quantity of research conducted there and the significant impact of climate change on the periglacial system. Further aspects include the consequences of the Eibsee Bergsturz event in 3700bpin terms of path dependence and geomorphic response time. With this conceptual approach, we hope (1) to enhance the interlinkage between periglacial geomorphology and other sub‐disciplines of geomorphology, (2) to contribute to the strengthening of the conceptual basis of periglacial geomorphology, and, therefore, (3) to strengthen the possibilities for holistic exchange within the cryospheric research community.
永久冻土层和小冰河时代冰川的关系,西班牙中部比利牛斯山脉波塞茨地块
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