Jan Kavan, Małgorzata Szczypińska, William Kochtitzky, Louise Farquharson, Mette Bendixen, Mateusz C. Strzelecki
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引用次数: 0
Abstract
Accelerated climate warming has caused the majority of marine-terminating glaciers in the Northern Hemisphere to retreat substantially during the twenty-first century. While glacier retreat and changes in mass balance are widely studied on a global scale, the impacts of deglaciation on adjacent coastal geomorphology are often overlooked and therefore poorly understood. Here we examine changes in proglacial zones of marine-terminating glaciers across the Northern Hemisphere to quantify the length of new coastline that has been exposed by glacial retreat between 2000 and 2020. We identified a total of 2,466 ± 0.8 km (123 km a−1) of new coastline with most (66%) of the total length occurring in Greenland. These young paraglacial coastlines are highly dynamic, exhibiting high sediment fluxes and rapidly evolving landforms. Retreating glaciers and associated newly exposed coastline can have important impacts on local ecosystems and Arctic communities.
21世纪，气候变暖的加速已导致北半球大部分海洋冰川大幅退缩。虽然冰川退缩和物质平衡的变化在全球范围内得到了广泛的研究，但冰川消融对邻近海岸地貌的影响往往被忽视，因此人们对其知之甚少。在这里，我们研究了整个北半球海洋终止冰川的前冰川带的变化，以量化2000年至2020年期间冰川退缩暴露的新海岸线的长度。我们确定了总共2,466±0.8 km （123 km a−1）的新海岸线，其中大部分（66%）出现在格陵兰岛。这些年轻的副冰川海岸线是高度动态的，表现出高沉积物通量和快速演变的地貌。退缩的冰川和相关的新暴露的海岸线可能对当地生态系统和北极社区产生重要影响。
期刊介绍：
Nature Climate Change is dedicated to addressing the scientific challenge of understanding Earth's changing climate and its societal implications. As a monthly journal, it publishes significant and cutting-edge research on the nature, causes, and impacts of global climate change, as well as its implications for the economy, policy, and the world at large.
The journal publishes original research spanning the natural and social sciences, synthesizing interdisciplinary research to provide a comprehensive understanding of climate change. It upholds the high standards set by all Nature-branded journals, ensuring top-tier original research through a fair and rigorous review process, broad readership access, high standards of copy editing and production, rapid publication, and independence from academic societies and other vested interests.
Nature Climate Change serves as a platform for discussion among experts, publishing opinion, analysis, and review articles. It also features Research Highlights to highlight important developments in the field and original reporting from renowned science journalists in the form of feature articles.
Topics covered in the journal include adaptation, atmospheric science, ecology, economics, energy, impacts and vulnerability, mitigation, oceanography, policy, sociology, and sustainability, among others.
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