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值来评估山冻土对气候引起的变暖的敏感性。与热监测多年冻土演化的地球物理和热评估的组合方法相反，可以鉴定地面冰降解或促进。通过两种互补的地球物理方法的结合，将有可能对地面冰含量进行定量。山冻土对气候变化的敏感性将使用高度的时间分辨率数据集评估，从较短的时间尺度上的极端大气强迫事件（例如2003年的非凡炎热夏季）或欧洲阿尔卑斯山中的2006年7月和10月温度的温暖。将研究典型的多年冻土地面对由于极端天气周期引起的干扰的反应。将使用一个合并的地球物理，热和气象监测网络，包括岩石冰台的测试地点，山顶山脊（带有N和S面向S陡峭的陡坡），岩石高原和镜边斜坡。地貌特定的方法涉及瑞士阿尔卑斯山中不同地理和气候区域的地貌差异以及不同的冰块。

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