Quantitative assessment of permafrost degradation using coupled geophysical and thermal monitoring systems

使用耦合地球物理和热监测系统对永久冻土退化进行定量评估

• 批准号: 53469849
• 负责人: Professor Dr. Roland Mäusbacher
• 金额: --
• 依托单位: Lehrstuhl Physische Geographie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/53469849?language=en
• 关键词: Quantitative; assessment; permafrost; degradation; using

In the proposed project repeated geophysical measurements shall be used to evaluate the sensitivity of mountain permafrost to climate induced warming. In contrast to a thermal monitoring a combined approach of geophysical and thermal assessment of permafrost evolution enables the identification of ground ice degradation or aggradation. Quantification of ground ice content will be possible by the combination of two complementary geophysical methods. Sensitivity of mountain permafrost to climate change will be evaluated using high temporal resolution data sets from extreme atmospheric forcing events on shorter time scales such as the extraordinary hot summer 2003, or the warm July and October/November temperatures 2006 in the European Alps. The response of typical permafrost landforms to disturbance due to extreme weather periods will be investigated. A combined geophysical, thermal and meteorological monitoring network will be used including test sites at rockglaciers, a summit ridge (with N- and S-facing steep slopes), a rock plateau, and a talus slope. The landform specific approach accounts for geomorphological differences, different geographic and climatic regions in the Swiss Alps as well as for different ice contents.

在拟议的项目中，应使用重复的地球物理测量来评估山区永久冻土对气候引起的变暖的敏感性。与热监测相比，永久冻土演化的地球物理和热评估相结合的方法能够识别地面冰的退化或加积。通过结合两种互补的地球物理方法，可以对地面冰含量进行量化。山区永久冻土层对气候变化的敏感性将使用来自较短时间尺度的极端大气强迫事件的高时间分辨率数据集进行评估，例如2003年异常炎热的夏季，或欧洲阿尔卑斯山2006年7月和10月/11月温暖的气温。将研究典型的永久冻土地貌对极端天气时期干扰的响应。将使用地球物理、热力和气象综合监测网络，包括岩石冰川、山顶山脊（具有面向北和面向南的陡坡）、岩石高原和距骨斜坡的测试场地。地形特定方法考虑了瑞士阿尔卑斯山的地貌差异、不同地理和气候区域以及不同的冰含量。

项目成果

Applicability of electrical resistivity tomography monitoring to coarse blocky and ice‐rich permafrost landforms

• DOI: 10.1002/ppp.652
• 发表时间: 2009-07
• 期刊: Permafrost and Periglacial Processes
• 影响因子: 5
• 作者: C. Hilbich;L. Marescot;C. Hauck;M. Loke;R. Mäusbacher

Time-lapse refraction seismic tomography for the detection of ground ice degradation

• DOI: 10.5194/tc-4-243-2010
• 发表时间: 2010-07
• 期刊: The Cryosphere
• 作者: C. Hilbich

Automated Time‐lapse ERT for Improved Process Analysis and Monitoring of Frozen Ground

• DOI: 10.1002/ppp.732
• 发表时间: 2011-10
• 期刊: Permafrost and Periglacial Processes
• 影响因子: 5
• 作者: C. Hilbich;C. Fuss;C. Hauck