Results 91 to 100 of about 973,278 (223)

Scaling Arctic landscape and permafrost features improves active layer depth modeling

Environmental Research: Ecology
Tundra ecosystems in the Arctic store up to 40% of global below-ground organic carbon but are exposed to the fastest climate warming on Earth. However, accurately monitoring landscape changes in the Arctic is challenging due to the complex interactions ...
Wouter Hantson, Daryl Yang, Shawn P Serbin, Joshua B Fisher, Daniel J Hayes   +4 more
doaj   +1 more source

Climate and Permafrost Shifts in Yakutia’s Arctic and Subarctic from 1965 to 2023

Land
By analyzing the last 50–60 years of climate changes in Arctic and Subarctic Yakutia, we have identified three distinct periods of climate development.
Alexander N. Fedorov, Pavel Y. Konstantinov, Nikolay F. Vasilyev, Stepan P. Varlamov, Yuri B. Skachkov, Alexey N. Gorokhov, Svetlana V. Kalinicheva, Rosaliya N. Ivanova, Alexandra N. Petrova, Varvara V. Andreeva, Varvara A. Novopriezzhaya, Maxim A. Sivtsev, Mikhail N. Zheleznyak   +12 more
doaj   +1 more source

Late Holocene moisture variability in Arctic Alaska from chitin δ18O

Boreas, EarlyView.
Amplified warming in the Arctic has resulted in reduced sea‐ice extent, which can impact regional climate dynamics. Elucidating past moisture variability in response to changing temperatures and sea‐ice conditions can offer insight into how anthropogenic climate change may impact Arctic areas such as the Alaskan North Slope in the future. We contribute
Briana A. Edgerton, Melissa L. Chipman
wiley   +1 more source

Cold comfort for change: Stream mats as biological indicators of ecosystem processes in the McMurdo Dry Valleys, Antarctica

Journal of Phycology, EarlyView.
Abstract Glacier‐fed streams (GFSs) make ideal systems for studying climate‐related changes. Some of the best‐studied GFSs are found in the McMurdo Dry Valleys (MDVs) of Antarctica, one of the Earth's coldest and driest deserts. Despite their harsh and isolated nature, MDV GFSs represent an oasis of life in a landscape visually devoid of it, with ...
Tyler J. Kohler, Ian Hawes, Adrian Howkins, Lydia H. Zeglin, Mike N. Gooseff, Diane M. McKnight   +5 more
wiley   +1 more source

Remote sensing evaluation of High Arctic wetland depletion following permafrost disturbance by thermo-erosion gullying processes

Arctic Science, 2017
Northern wetlands and their productive tundra vegetation are of prime importance for Arctic wildlife by providing high-quality forage and breeding habitats. However, many wetlands are becoming drier as a function of climate-induced permafrost degradation.
Naïm Perreault, Esther Lévesque, Daniel Fortier, Denis Gratton, Laurent J. Lamarque   +4 more
doaj   +1 more source

Effects of warming on plant uptake of post‐fire nitrogen in an arctic heath tundra

New Phytologist, EarlyView.
Summary Postfire nitrogen (N) becomes increasingly important with the rising frequency of fires in arctic tundra, and climate warming is expected to accelerate plant recovery following fire. However, how plants differ in utilizing this postfire N and how their postfire N uptake responds to warming remains unknown.
Wenyi Xu, Per Lennart Ambus
wiley   +1 more source

The Arctic Boreal Burned Area (ABBA) Product

Geoscience Data Journal, Volume 13, Issue 2, April 2026.
The Arctic Boreal Burned Area (ABBA) dataset improves wildfire mapping in high northern latitudes, capturing over 2 million km2 of burned area between 2002 and 2022 with 87.2% accuracy. Its enhanced detection of late‐season fires and reduced errors surpass global products, enabling better climate modelling and ecological impact assessments.
Dong Chen, Joanne V. Hall, Amanda Hoffman‐Hall, Varada Shevade, Fernanda Argueta, Xiaoyu Liang, Tatiana Loboda   +6 more
wiley   +1 more source

Impact of Fire and Heat Stress on Soil Microorganisms: A Review of Community Changes, Molecular Responses and Plant‐Beneficial Roles

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
This work reviewed the direct and indirect effects of fires on microbial communities and the resilience strategies microbes use to withstand high temperatures . ABSTRACT Fire, whether occurring on the surface or underground, significantly influences soil microbial dynamics by reshaping community composition, functional diversity and overall soil and ...
Ma. del Carmen Orozco‐Mosqueda, Aurora Flores‐Piña, Ajay Kumar, Fannie I. Parra‐Cota, Sergio de los Santos‐Villalobos, Debasis Mitra, Olubukola Oluranti Babalola, Gustavo Santoyo   +7 more
wiley   +1 more source

Decoupling Hydroclimatic Controls on Displacement of Retrogressive Thaw Slumps in Qinghai‐Tibet Plateau

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The retrogressive thaw slumps (RTS), a prevalent form of thermokarst hazard in permafrost regions, are increasing in both number and extent under contemporary changing environments. On the Qinghai‐Tibet Plateau, RTS threaten transportation infrastructure and disrupt ecosystems.
Yuanzhuo Zhou, Xie Hu, Zhong Lu, Ziqiang Ma, Yiling Lin, Xuguo Shi   +5 more
wiley   +1 more source

Inverse Grading Emerges From Particle‐Scale Migration Under Seasonal Freeze‐Thaw Forcing: Evidence From Multi‐Year Monitoring and Physical Modeling

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Inverse grading, where coarse particles overlay finer materials, is common on talus slopes, yet its progressive formation under realistic conditions is rarely quantified. We integrate multi‐year field observations with controlled freeze‐thaw experiments to elucidate the processes driving particle migration that result in inverse grading and ...
Weibo Li, Qinglu Deng, Limin Zhang, Pengju An, Xingwei Ren, Xuexue Su, Ruiqiang Bai, Jiren Xie, Li Zeng, Kun Fang   +9 more
wiley   +1 more source