Rockglacier activity studies on a regional scale: comparison of geomorphological mapping and photogrammetric monitoring
Rockglacier activity studies on a regional scale: comparison of geomorphological mapping and photogrammetric monitoring
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区域尺度的岩石冰川活动研究：地貌测绘与摄影测量监测的比较
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
M. Nyenhuis
中科院分区：
文献类型：
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作者：
I. Roer;M. Nyenhuis
岩石冰川的空间分布及其不同的活动状态意味着有关以前和最近的永久冻土条件的重要信息。在一个研究区域（瑞士阿尔卑斯山图尔特曼山谷）应用了两种不同的方法，以比较它们在评估岩石冰川活动方面的适用性。地貌测绘和摄影测量监测的比较显示出良好的一致性，特别是在区域尺度上。在局部范围内，地貌界定和活动程度存在一些差异。观察到的差异的原因之一是地貌测绘的定性特征，这是由于确定岩石冰川活动时单个参数及其组合的可变适用性而产生的。
In their spatial distribution as well as in their different states of activity, rockglaciers imply important information on former and recent permafrost conditions. Two different methods were applied in one study area (Turtmann Valley, Swiss Alps) in order to compare their suitability in assessing rockglacier activity. The comparison of geomorphological mapping and photogrammetric monitoring demonstrated a good accordance, especially on a regional scale. On a local scale, some differences in delimitation of the landforms as well as in the degree of activity were found. One reason for the observed differences is the qualitative character of geomorphological mapping resulting from the variable suitability of single parameters and combinations thereof in the determination of rockglacier activity.