New insights into mountain permafrost occurrence and characteristics in glacier forefields at high altitude through the application of 2D resistivity imaging
New insights into mountain permafrost occurrence and characteristics in glacier forefields at high altitude through the application of 2D resistivity imaging
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二维电阻率成像对高海拔冰川前场山地多年冻土发生和特征的新认识
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
C. Kneisel
中科院分区：
文献类型：
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作者：
C. Kneisel
近年来（1996-1998年），利用一维地电测深作为探测山区永久冻土的标准地球物理技术，对上恩加丁高海拔冰川前区的永久冻土进行了调查。2002年夏天，对两个冰川前区进行了重新考察，并在同一调查地点进行了二维电阻率层析成像。二维电阻率成像证实了基于一维垂直地电测深解释的结果。此外，与传统的一维垂直探测结果相比，电阻率层析成像的应用提供了对最近冰消冰川前缘永久冻土的发生和特征的更详细的了解。此外，更有效的数据采集，使新的应用领域，这反过来又将允许一个更完整的解释的影响因素的分布不连续和零星的山区永久冻土。版权所有© 2004年约翰威利父子有限公司。
Investigation of permafrost in glacier forefields at high altitude in the Upper Engadine has been undertaken during recent years (1996–1998) using one‐dimensional geoelectrical soundings as the standard geophysical technique to detect mountain permafrost. In summer 2002, two of the glacier forefields were revisited and two‐dimensional electrical resistivity tomography applied at the same survey locations. The findings based on the interpretation of one‐dimensional vertical geoelectrical soundings were confirmed by two‐dimensional resistivity imaging. Furthermore, the application of electrical resistivity tomography provides more detailed insights into the occurrence and characteristics of permafrost in recently deglaciated glacier forefields as compared to the results obtained by traditional one‐dimensional vertical soundings. Additionally, the more effective data acquisition enables new fields of application, which in turn will allow a more complete interpretation of the factors influencing the distribution of discontinuous and sporadic mountain permafrost. Copyright © 2004 John Wiley & Sons, Ltd.