挑战西格陵兰活跃岩石冰川的南部边界

IF 3 3区地球科学 Q2 GEOGRAPHY, PHYSICAL

Permafrost and Periglacial Processes Pub Date : 2022-03-07 DOI:10.1002/ppp.2139

J. Abermann, K. Langley

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引用次数: 0

摘要

岩石冰川是影响径流组成和大小的景观特征，鉴于其含冰量，它们被用作过去和现在气候条件的指标。尽管近年来我们对许多山区RG覆盖率的了解有所提高，但格陵兰岛RG的可用信息很少。在这里，我们提供了西格陵兰活跃RG的证据，约230 在先前被确定为活动RG的南部界限以南公里处。我们提供了现场证据，如积雪的底部温度和表面位移，并指出如何在进一步的研究中利用这些结果来更好地评估RG分布或其含冰量。

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Challenging the southern boundary of active rock glaciers in West Greenland

Rock glaciers (RGs) are landscape features impacting the composition and magnitude of runoff and, given their ice content, they are used as indicators for past and present climate conditions. While our knowledge of RG coverage has improved over recent years in many mountainous regions, there is very little information available for RGs in Greenland. Here, we provide evidence for an active RG in West Greenland, about 230 km south of what previously has been identified as the southern limit of active RGs. We present field evidence such as bottom temperature of the snow pack and surface displacements and indicate how these results could be utilized in further studies to better assess RG distribution or their ice content.

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来源期刊

Permafrost and Periglacial Processes 地学-地质学

CiteScore

9.70

自引率

8.00%

发文量

审稿时长

>12 weeks

期刊介绍： Permafrost and Periglacial Processes is an international journal dedicated to the rapid publication of scientific and technical papers concerned with earth surface cryogenic processes, landforms and sediments present in a variety of (Sub) Arctic, Antarctic and High Mountain environments. It provides an efficient vehicle of communication amongst those with an interest in the cold, non-glacial geosciences. The focus is on (1) original research based on geomorphological, hydrological, sedimentological, geotechnical and engineering aspects of these areas and (2) original research carried out upon relict features where the objective has been to reconstruct the nature of the processes and/or palaeoenvironments which gave rise to these features, as opposed to purely stratigraphical considerations. The journal also publishes short communications, reviews, discussions and book reviews. The high scientific standard, interdisciplinary character and worldwide representation of PPP are maintained by regional editorial support and a rigorous refereeing system.