Results 61 to 70 of about 1,002 (181)

Refined Modeling of Arctic Circumpolar Building Stock Increases Estimated Mid‐Century Permafrost Degradation Damages

Earth's Future, Volume 14, Issue 7, July 2026.
Abstract Near‐surface permafrost degradation has the potential to damage infrastructure needed to sustain Arctic communities, but risk assessments remain highly uncertain due to a limited representation of the Arctic circumpolar building stock. With deep learning building footprint detection and building occupancy classification models, we expand the ...
E. Manos, D. A. Streletskiy, C. Witharana, E. Haggerty, A. K. Liljedahl   +4 more
wiley   +1 more source

Soil drying induces widespread productivity loss but unequal climate vulnerability among ecotypes of a foundational Arctic sedge

Functional Ecology, Volume 40, Issue 7, Page 2301-2317, July 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract As temperatures increase in the Arctic, hydrological change may lead to local soil drying through altered snowpack, evapotranspiration and drainage due to permafrost thaw.
Jonathan Gewirtzman, Ned Fetcher
wiley   +1 more source

Addressing Uncertainties in Climate–Ecosystem Feedbacks in the Arctic: Ten Priority Research Questions for Integrated Observation and Modeling

Ecological Research, Volume 41, Issue 4, July 2026.
Uncertainties exist in the biosphere–climate feedbacks in the Arctic. Remote and ground measurements play complementary roles in detecting possible changes. A critical next step is identification of key drivers of the global changes for future projections. ABSTRACT Positive biosphere–climate feedbacks are likely to amplify the Arctic warming, yet major
Akira S. Mori, Keita Nishizawa, Shota Masumoto, Ülo Niinemets, Vincent Maire, Xinyu Xu, Shu‐Kuan Wong, Kureha F. Suzuki, Joël Bêty, J. Hans C. Cornelissen, Masaki Uchida   +10 more
wiley   +1 more source

Saline Permafrost and Cryopegs as Potentially Important Sources of CO2—Assessing Organic Carbon Mineralization Potentials on the Alaskan Coastal Plain

Global Change Biology, Volume 32, Issue 7, July 2026.
Incubation experiments reveal that potentially carbon‐rich saline permafrost and cryopegs from Arctic coastal plains exhibit CO2 production potentials comparable to active layers. This could substantially shift greenhouse gas balances, as salinity is currently not accounted for in permafrost carbon assessments.
Fabian Seemann, Mackenzie R. Baysinger, Susanne Liebner, Claire Treat, Michael Zech, Maren Jenrich, Guido Grosse, Benjamin M. Jones, Jens Strauss   +8 more
wiley   +1 more source

Shallow carbon storage in ancient buried thermokarst in the South Kara Sea

Scientific Reports, 2018
Geophysical data from the South Kara Sea reveal U-shaped erosional structures buried beneath the 50–250 m deep seafloor of the continental shelf across an area of ~32 000 km2.
Alexey Portnov, Jürgen Mienert, Monica Winsborrow, Karin Andreassen, Sunil Vadakkepuliyambatta, Peter Semenov, Valery Gataullin   +6 more
doaj   +1 more source

Holocene Thermokarst Lake Dynamics in Northern Interior Alaska: The Interplay of Climate, Fire, and Subsurface Hydrology

Frontiers in Earth Science, 2019
The current state of permafrost in Alaska and meaningful expectations for its future evolution are informed by long-term perspectives on previous permafrost degradation.
Lesleigh Anderson, Mary Edwards, Mark D. Shapley, Bruce P. Finney, Bruce P. Finney, Catherine Langdon   +5 more
doaj   +1 more source

Analysis on physical and chemical properties of water in thermokarst lakes along Qinghai-Tibet engineering corridor

Shui kexue jinzhan, 2014
Formation and development of thermokarst lakes have great influence on the cold region environment,and its lateral heat erosion can cause the embankment instability in permafrost regions.
LIN Zhanju, NIU Fujun, LUO Jing, YIN Guo'an, LIU Minghao, CHRIS Burn   +5 more
doaj   +1 more source

Legacy permafrost conditions limit deep carbon decomposition in thermokarst peatlands and ponds

Communications Earth & Environment
Thermokarst fens and ponds form following thaw in permafrost peatland complexes and can release large but poorly constrained quantities of permafrost carbon to the atmosphere.
Liam Heffernan, Konstantinos-Marios Vaziourakis, A. Britta K. Sannel, Dolly Kothawala, Lars Tranvik   +4 more
doaj   +1 more source

Evaluation of the energy budget of thermokarst lake in permafrost regions of the Qinghai–Tibet Plateau

Advances in Climate Change Research
Thermokarst lake formation accelerates permafrost degradation due to climate warming, thereby releasing significant amounts of carbon into the atmosphere, complicating hydrological cycles, and causing environmental damage.
Ze-Yong Gao, Fu-Jun Niu, Yi-Bo Wang, Jing Luo, Guo-An Yin, Yun-Hu Shang, Zhan-Ju Lin   +6 more
doaj   +1 more source

Detecting unvegetated permafrost-thaw features in Arctic tundra using imaging spectroscopy

Environmental Research: Ecology
Freeze-thaw cycles, hydrology, soil mixing, and permafrost degradation shape landscape patterns in permafrost regions, forming unvegetated or sparsely vegetated landforms with varied topography.
F Tenorio, D Sousa, J Hashemi, S J Davidson, W C Oechel, C E Tweedie, B D Thomas, S Rauschenbach, D Zona   +8 more
doaj   +1 more source