Article
Geosciences, Multidisciplinary
Niek Jesse Speetjens, Gustaf Hugelius, Thomas Gumbricht, Hugues Lantuit, Wouter R. Berghuijs, Philip A. Pika, Amanda Poste, Jorien E. Vonk
Summary: ARCADE is an integrated database of over 40,000 catchments that drain into the Arctic Ocean, ranging in size from 1 to 3.1 x 106 km2. It includes numerous small catchments experiencing significant climatic warming and storing large amounts of soil carbon. ARCADE is a key tool for monitoring the pan-Arctic across scales.
EARTH SYSTEM SCIENCE DATA
(2023)
Article
Engineering, Marine
Mohammad Akhsanul Islam, Raed Lubbad
Summary: Various models have been developed to describe Arctic coastal erosion, with a new methodology allowing the use of models designed for warmer climates. The study found that nearshore waves play an important role in driving erosion, and accurately modeling the erosion mechanism requires the inclusion of nearshore hydrodynamics and sediment transport.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Jens Terhaar, Ronny Lauerwald, Pierre Regnier, Nicolas Gruber, Laurent Bopp
Summary: Research indicates that carbon and nutrients from land play a significant role in Arctic Ocean ecosystems and NPP, contributing to the evolution of Arctic Ocean NPP in the future.
NATURE COMMUNICATIONS
(2021)
Article
Geography, Physical
Kira M. M. Holland, Trevor J. J. Porter, Alison S. S. Criscitiello, Duane G. G. Froese
Summary: Ice wedges are underground ice features in permafrost regions formed by meltwater from seasonal snowpack. The geochemistry of ice wedges as a potential paleoclimate proxy has rarely been studied. In this study, a coastal ice wedge in the Canadian Arctic was analyzed to evaluate its use as a marine aerosol archive. The analysis revealed that marine aerosols, likely from sea salt aerosol production during blowing snow events over sea ice, are the dominant contributor to ion concentrations in the ice wedge.
PERMAFROST AND PERIGLACIAL PROCESSES
(2023)
Article
Environmental Sciences
David Marcolino Nielsen, Patrick Pieper, Armineh Barkhordarian, Paul Overduin, Tatiana Ilyina, Victor Brovkin, Johanna Baehr, Mikhail Dobrynin
Summary: Coastal erosion in the Arctic caused by permafrost thaw and wave abrasion is expected to increase significantly due to global warming. Projections indicate that the erosion rate will exceed historical levels before the end of the century. This research has important implications for policymakers in terms of coastal conservation and socioeconomic planning, as well as for understanding the impact of Arctic coastal erosion on the changing Arctic Ocean and its role as a carbon sink.
NATURE CLIMATE CHANGE
(2022)
Article
Geography, Physical
Kethra Campbell-Heaton, Denis Lacelle, David Fisher, Wayne Pollard
Summary: This study investigates the timing of ice wedge formation in the Fosheim Peninsula and the climate factors influencing it. The development of ice wedges is closely related to changes in precipitation and humidity in the region, providing important insights into ice wedge formation in a high Arctic polar desert environment.
QUATERNARY RESEARCH
(2021)
Article
Environmental Sciences
Ziyi Wang, Ming Xiao, Dmitry Nicolsky, Vladimir Romanovsky, Christopher Mccomb, Louise Farquharson
Summary: The thawing of permafrost in the Arctic is causing serious threats to civil infrastructure and coastal communities, including land loss, flooding, and ground subsidence. However, there is a lack of tools for assessing these hazards. To address this, a comprehensive framework called the Arctic Coastal Hazard Index (ACHI) was developed to evaluate the vulnerability of Arctic coasts to permafrost thawing, coastal erosion, and coastal flooding. The ACHI incorporates various physical and ecological variables to assess coastal hazards, such as shoreline type, habitat, relief, wind exposure, wave exposure, surge potential, and sea-level rise. By mapping the distribution pattern of the ACHI, areas prone to coastal hazards can be identified, aiding in policy and decision-making for adaptation, mitigation strategies, and civil infrastructure planning.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Studies
Alexander N. Fedorov, Pavel Y. Konstantinov, Nikolay F. Vasiliev, Nikolay I. Basharin, Andrei G. Shepelev, Varvara A. Andreeva, Valerii P. Semenov, Yaroslav I. Torgovkin, Alexey R. Desyatkin, Mikhail N. Zheleznyak, Igor P. Semiletov
Summary: This study focuses on the distribution of ground ice volumes in the upper layers of permafrost in Arctic Yakutia and compiles a map to assess the vulnerability of permafrost to global warming and anthropogenic impact, as well as forecast the evolution of permafrost landscapes. The results show that about 19% of the area is occupied by ultra ice-rich sediments, while very high ice volumes cover approximately 27% of the area and low ice volumes account for about 29% of Arctic Yakutia.
Article
Ecology
Niek Jesse Speetjens, George Tanski, Victoria Martin, Julia Wagner, Andreas Richter, Gustaf Hugelius, Chris Boucher, Rachele Lodi, Christian Knoblauch, Boris P. Koch, Urban Wunsch, Hugues Lantuit, Jorien E. Vonk
Summary: Climate warming in the western Canadian Arctic is causing the thawing of permafrost soils and the release of organic matter, which enters aquatic systems and impacts ecosystems and greenhouse gas emissions. However, research on these processes in small, high-Arctic watersheds is limited.
Article
Environmental Sciences
Marina Leibman, Alexander Kizyakov, Yekaterina Zhdanova, Anton Sonyushkin, Mikhail Zimin
Summary: Thermodenudation on the Kara seacoast of the Yugorsky Peninsula, Russia, was studied through analyzing remote-sensing data. The formation of thermocirques, resulting from the thaw of tabular ground ice due to polycyclic retrogressive thaw slumps, was monitored over the last decade (2010-2020). The retreat rates of thermocirques were found to have very low correlation with summer warmth, rainfall, and wave action.
Article
Mathematics, Applied
Jennifer Frederick, Alejandro Mota, Irina Tezaur, Diana Bull
Summary: This paper presents a novel multi-physics finite element model for numerical simulation of Arctic coastal permafrost degradation. The model couples solid mechanics and thermal models to simulate the deformation and erosion processes of permafrost, allowing for more accurate explanation of permafrost erosion events than previous approaches.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2021)
Editorial Material
Environmental Sciences
Rebecca Finger-Higgens
Summary: Due to rising air temperatures and autumn rains, some Arctic lakes are drying, leading to permafrost thawing and water drainage.
NATURE CLIMATE CHANGE
(2022)
Article
Geosciences, Multidisciplinary
H. T. Mithan, T. C. Hales, P. J. Cleall
Summary: An increase in Arctic shallow landsliding caused by climate warming is influenced by the topographic controls on ground ice distribution and hydrology, with high ground-ice concentrations near the potential failure plane acting as a stronger control than high average ice volumes or rapid thawing. The low average slopes and low concavity of Arctic hillslopes cannot generate landsliding solely based on pore-water pressures.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Walker Raymond Lee, Douglas G. MacMartin, Daniele Visioni, Ben Kravitz, Yating Chen, John C. Moore, Gunter Leguy, David M. Lawrence, David A. Bailey
Summary: This study simulates two Arctic-focused stratospheric aerosol injection (SAI) strategies and finds that they can preserve the Arctic region, including Arctic sea ice, permafrost, and the Greenland Ice Sheet. However, focusing on the Arctic also introduces complications such as the impact on carbon uptake, heat transport, precipitation patterns, and ecosystem effects.
Article
Green & Sustainable Science & Technology
Yaping Chen, Mark J. Lara, Benjamin M. Jones, Gerald Frost, Feng Sheng Hu
Summary: Climate warming and wildfires have synergistically accelerated thermokarst in Arctic Alaska, with thermokarst rates increasing significantly over the past few decades. Climate change is identified as the primary driver of thermokarst formation, while wildfires, despite burning a small portion of the landscape, disproportionately contribute to the phenomenon.
