Continentality determines warming or cooling impact of heavy rainfall events on permafrost

A Hamm, RÍ Magnússon, AJ Khattak… - Nature …, 2023 - nature.com
Permafrost thaw can cause an intensification of climate change through the release of
carbon as greenhouse gases. While the effect of air temperature on permafrost thaw is well …

Integrated hydrologic modelling of groundwater-surface water interactions in cold regions

X Yang, J Hu, R Ma, Z Sun - Frontiers in Earth Science, 2021 - frontiersin.org
Groundwater-surface water (GW-SW) interaction, as a key component in the cold region
hydrologic cycle, is extremely sensitive to seasonal and climate change. Specifically, the …

Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra

RÍ Magnússon, A Hamm, SV Karsanaev… - Nature …, 2022 - nature.com
Permafrost thaw can accelerate climate warming by releasing carbon from previously frozen
soil in the form of greenhouse gases. Rainfall extremes have been proposed to increase …

Mobilization of subsurface carbon pools driven by permafrost thaw and reactivation of groundwater flow: a virtual experiment

AA Mohammed, JA Guimond, VF Bense… - Environmental …, 2022 - iopscience.iop.org
Permafrost thaw leads to an increase in groundwater circulation and potential mobilization
of organic carbon sequestered in deep Arctic sediments (eg 3–25 m below surface). Upon …

多年冻土区下垫面条件对坡面关键水循环过程的影响分析

郭林茂, 王根绪, 宋春林, 李阳, 李金龙 - 水科学进展, 2022 - skxjz.nhri.cn
为从整体上认识多年冻土流域水循环过程基本规律及其对下垫面条件变化响应,
以长江源区风火山小流域为例, 基于2016—2019 年的水文气象要素的野外观测与计算 …

Canopy cover and microtopography control precipitation-enhanced thaw of ecosystem-protected permafrost

JF Eklof, BM Jones, B Dafflon, ÉG Devoie… - Environmental …, 2024 - iopscience.iop.org
Northern high-latitudes are projected to get warmer and wetter, which will affect rates of
permafrost thaw and mechanisms by which thaw occurs. To better understand the impact of …

Limited sensitivity of permafrost soils to heavy rainfall across Svalbard ecosystems

RÍ Magnússon, S Schuuring, A Hamm… - Science of the Total …, 2024 - Elsevier
Together with warming air temperatures, Arctic ecosystems are expected to experience
increases in heavy rainfall events. Recent studies report accelerated degradation of …

Impact of summer air temperature on water and solute transport on a permafrost‐affected slope in West Greenland

SF Zastruzny, Y Sjöberg, KH Jensen… - Water Resources …, 2024 - Wiley Online Library
In Arctic landscapes, the active layer forms a near‐surface aquifer on top of the permafrost
where water and nutrients are available for plants or subject to downslope transport. Warmer …

[HTML][HTML] Numerical modeling and simulation of thermo-hydrologic processes in frozen soils on the Qinghai-Tibet Plateau

J Hu, T Che, H Sun, X Yang - Journal of Hydrology: Regional Studies, 2022 - Elsevier
Abstract Study region The Qinghai-Tibetan Plateau (QTP) is the highest plateau in the world
and has been recognized as the “Asia water tower”. Frozen soils in China are mostly …

Recent Advances (2018–2023) and Research Opportunities in the Study of Groundwater in Cold Regions

JM Lemieux, A Frampton… - Permafrost and Periglacial …, 2024 - Wiley Online Library
Increasing greenhouse gas levels drive extensive changes in Arctic and cold‐dominated
environments, leading to a warmer, more humid, and variable climate. Associated …