In the general context of global warming, the cryosphere appears as an environment which exhibits a strong sensitivity to climate variations. Overall glacier systems are now known to be reliable indicators of climate trends. Although glacier dynamics are subject to international monitoring networks, periglacial environments are much less observed. However, these newly deglaciated areas get wider since glaciers are retreating, and their dynamics become increasingly significant. The observed increase in water fluxes, temperature and precipitation, permafrost melting and reduced cold periods, induce a combined control on modifications of the glacier and periglacial dynamics. Such consequences are also visible on the landscape, hinting at an adaptation of the environment to the climatic forcing. The work carried out focuses on Austre Lovenbreen area, a small 10 km2 glacier basin (Svalbard, 78.87°N, 12.15°E, west coast of Spitsbergen) exhibiting typical arctic glacial retreat trends. Its geomorphological characteristics as well as its observatory status make it an appropriate control area. Our investigations are based on a combination of classical on‐site snow, ice and geomorphological measurements, combined with innovative methods using aerial photography (e.g. from Unmanned Aerial Systems) and digital photogrammetric image processing. Such data currently complements classical remote sensing methods (satellite imagery), providing both improved resolution and high temporal repeatability. Indeed, short acquisition time and flexibility allows measurements within very short time intervals, a requirement when short events are significant in the whole system evolution: the speed at which climatic change related events occur requires such fine grained spatial and temporal monitoring. Not really sure what this sentence is trying to say. This work highlights an increase of sediment transfers during the last decade which ties in with the increasing liquid precipitation as well as a trend of rising temperatures. The newly deglaciated area, particularly at the glacier front, is in constant and fast reshaping, which is quantifiable from one year to another, assessing the increase of periglacial landscape modification. This small scale detailed analysis enlightens on global processes occurring in Arctic regions demonstrating ongoing geomorphological and landscape changes as a consequence of glacier retreat and newly exposed periglacial environments.

中文翻译：

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评估冰缘对径流增加的反应。北极水系统见证

在全球变暖的大背景下，冰冻圈表现为对气候变化表现出强烈敏感性的环境。现在已知整个冰川系统是气候趋势的可靠指标。尽管冰川动态受国际监测网络的影响，但很少观察到冰缘环境。然而，随着冰川退缩，这些新冰川消融的区域变得更广，它们的动态变得越来越重要。观察到的水通量、温度和降水的增加、永久冻土融化和寒冷期的减少，诱导了对冰川和冰缘动态变化的综合控制。这种后果在景观上也很明显，暗示着环境对气候强迫的适应。开展的工作集中在 Austre Lovenbreen 地区，一个 10 平方公里的小型冰川盆地（斯瓦尔巴群岛，北纬 78.87°，东经 12.15°，斯匹次卑尔根岛西海岸）表现出典型的北极冰川退缩趋势。其地貌特征和观测站地位使其成为适宜的控制区。我们的调查基于经典的现场雪、冰和地貌测量的组合，并结合使用航空摄影（例如来自无人航空系统）和数字摄影测量图像处理的创新方法。这些数据目前补充了经典的遥感方法（卫星图像），提供了更高的分辨率和高时间可重复性。事实上，较短的采集时间和灵活性允许在非常短的时间间隔内进行测量，这是在整个系统演变中短事件很重要时的要求：气候变化相关事件发生的速度需要这种细粒度的空间和时间监测。不太确定这句话想说什么。这项工作突出了过去十年中沉积物转移的增加，这与液体降水的增加以及温度升高的趋势有关。新冰川消融区，尤其是冰川前沿，处于持续快速的重塑过程中，这一变化可以从一年到另一年进行量化，评估冰缘景观改造的增加。这种小规模的详细分析揭示了北极地区发生的全球过程，表明由于冰川退缩和新暴露的冰缘环境，地貌和景观正在发生变化。