Results 21 to 30 of about 2,197 (157)

Effects of multi-scale heterogeneity on the simulated evolution of ice-rich permafrost lowlands under a warming climate [PDF]

open access: yesThe Cryosphere, 2021
In continuous permafrost lowlands, thawing of ice-rich deposits and melting of massive ground ice lead to abrupt landscape changes called thermokarst, which have widespread consequences on the thermal, hydrological, and biogeochemical state of the ...
J. Nitzbon   +10 more
doaj   +1 more source

Long-term climate-influenced land cover change in discontinuous permafrost peatland complexes [PDF]

open access: yesHydrology and Earth System Sciences, 2021
The discontinuous permafrost zone is undergoing rapid transformation as a result of unprecedented permafrost thaw brought on by circumpolar climate warming. Rapid warming over recent decades has significantly decreased the area underlain by permafrost in
O. Carpino   +5 more
doaj   +1 more source

The Permafrost and Organic LayEr module for Forest Models (POLE-FM) 1.0 [PDF]

open access: yesGeoscientific Model Development, 2023
Climate change and increased fire are eroding the resilience of boreal forests. This is problematic because boreal vegetation and the cold soils underneath store approximately 30 % of all terrestrial carbon.
W. D. Hansen   +5 more
doaj   +1 more source

Hydrologic Controls on Peat Permafrost and Carbon Processes: New Insights From Past and Future Modeling

open access: yesFrontiers in Environmental Science, 2022
Soil carbon (C) in permafrost peatlands is vulnerable to decomposition with thaw under a warming climate. The amount and form of C loss likely depends on the site hydrology following permafrost thaw, but antecedent conditions during peat accumulation are
Claire C. Treat   +3 more
doaj   +1 more source

Landscape Indication Of Permafrost Conditions For Geoecological Assessment & Mapping At Various Scales

open access: yesGeography, Environment, Sustainability, 2021
In this paper, the features of landscape indication of permafrost characteristics required for assessing the environmental state at various research scales are discussed. A number of permafrost characteristics affect the geoecological state and stability
Larisa I. Zotova
doaj   +1 more source

Ice Volumes in Permafrost Landscapes of Arctic Yakutia

open access: yesLand, 2022
This article is devoted to the study of the distribution of ground ice volumes in the upper layers of 5–10 m permafrost in the permafrost landscapes of Arctic Yakutia. Compilation of such a map will serve as a basis for assessing the vulnerability of permafrost to global warming, anthropogenic impact and forecasting the evolution of permafrost ...
Alexander N. Fedorov   +10 more
openaire   +3 more sources

Evidence for unexpected net permafrost aggradation driven by local hydrology and climatic triggers

open access: yesEnvironmental Research Letters, 2023
Rapid rates of high latitude warming over the past century have led to widespread research on permafrost thaw and its consequences. Studies from lowland plains environments in the discontinuous permafrost zone have highlighted extensive areal loss of ...
Anastasia E Sniderhan   +3 more
doaj   +1 more source

Past permafrost dynamics can inform future permafrost carbon-climate feedbacks

open access: yesCommunications Earth & Environment, 2023
Climate warming threatens to destabilize vast northern permafrost areas, potentially releasing large quantities of organic carbon that could further disrupt the climate.
Miriam C. Jones   +5 more
doaj   +1 more source

Landsat-Based Monitoring of Landscape Dynamics in Arctic Permafrost Region

open access: yesJournal of Remote Sensing, 2022
Ice-rich permafrost thaws as a result of Arctic warming, and the land surface collapses to form characteristic thermokarst landscapes. Thermokarst landscapes can bring instability to the permafrost layer, affecting regional geomorphology, hydrology, and ...
Yating Chen, Aobo Liu, Xiao Cheng
doaj   +1 more source

Remote Sensing-Based Statistical Approach for Defining Drained Lake Basins in a Continuous Permafrost Region, North Slope of Alaska

open access: yesRemote Sensing, 2021
Lake formation and drainage are pervasive phenomena in permafrost regions. Drained lake basins (DLBs) are often the most common landforms in lowland permafrost regions in the Arctic (50% to 75% of the landscape).
Helena Bergstedt   +11 more
doaj   +1 more source

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