Lateral moraines located in permafrost environments often preserve large amounts of both glacier and periglacial ice. To understand how ice‐cored moraines located in high alpine environments evolve in a context of both glacier retreat and permafrost degradation, we performed 11 terrestrial laser‐scanning measurement campaigns between 2007 and 2014 on a highly anthropogenic overprinted moraine prone to instability. Resulting comparison of the subsequent 3D models allowed to qualitatively and quantitatively analyze the morphological evolution of the moraine. The comparisons indicate a very high geomorphic activity of the moraine including large areas affected by downslope movements of blocks and 10 landslides with a volume between 24 ± 1 and 1,138 ± 47 m3. Data also indicated a very strong ice melt with a loss of ice thickness locally reaching 17.7 m at the foot of the moraine. These results, compared with resistivity and thermal measurements of the ground, suggest the combined role of ice loss at the foot of the moraine and the permafrost activity/warming in triggering these processes.

中文翻译：

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瑞士瓦莱州阿尔卑斯山 GENTIANES PASS 冰芯冰碛的最新演变

位于永久冻土环境中的横向冰碛通常保存着大量的冰川和冰缘冰。为了了解位于高山环境中的冰芯冰碛如何在冰川退缩和永久冻土退化的背景下演变，我们在 2007 年至 2014 年间对一个容易不稳定的高度人为叠印的冰碛进行了 11 次陆地激光扫描测量活动。对随后的 3D 模型进行比较，可以定性和定量地分析冰碛的形态演变。比较表明，冰碛具有非常高的地貌活动，包括受块体下坡运动影响的大面积区域和 10 个体积在 24 ± 1 和 1,138 ± 47 m3 之间的滑坡。数据还表明冰融化非常强烈，局部冰厚度损失达到 17。7 m 在碛脚下。这些结果与地面的电阻率和热测量结果相比，表明冰碛脚下的冰损失和永久冻土活动/变暖在触发这些过程中的综合作用。