Results 21 to 30 of about 24,566 (233)

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

Frontiers 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, Miriam C. Jones, Jay Alder, Steve Frolking   +3 more
doaj   +1 more source

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

Geography, 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

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

Environmental 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, Christopher Spence, Steven V Kokelj, Jennifer L Baltzer   +3 more
doaj   +1 more source

Ice Volumes in Permafrost Landscapes of Arctic Yakutia

Land, 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, 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   +10 more
openaire   +3 more sources

Past permafrost dynamics can inform future permafrost carbon-climate feedbacks

Communications 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, Guido Grosse, Claire Treat, Merritt Turetsky, Katey Walter Anthony, Laura Brosius   +5 more
doaj   +1 more source

Distribution and Structure Analysis of Mountain Permafrost Landscape in Orulgan Ridge (Northeast Siberia) Using Google Earth Engine

Land, 2022
An analysis of the landscape spatial structure and diversity in the mountain ranges of Northeast Siberia is essential to assess how tundra and boreal landscapes may respond to climate change and anthropogenic impacts in the vast mountainous permafrost of
Moisei Zakharov, Sébastien Gadal, Jūratė Kamičaitytė, Mikhail Cherosov, Elena Troeva   +4 more
doaj   +1 more source

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

Remote 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, Benjamin M. Jones, Kenneth Hinkel, Louise Farquharson, Benjamin V. Gaglioti, Andrew D. Parsekian, Mikhail Kanevskiy, Noriaki Ohara, Amy L. Breen, Rodrigo C. Rangel, Guido Grosse, Ingmar Nitze   +11 more
doaj   +1 more source

Isotropic thaw subsidence in undisturbed permafrost landscapes [PDF]

Geophysical Research Letters, 2013
AbstractObservations in undisturbed terrain within some regions of the Arctic reveal limited correlation between increasing air temperature and the thickness of the seasonally thawed layer above ice‐rich permafrost. Here we describe landscape‐scale, thaw‐induced subsidence lacking the topographic contrasts associated with thermokarst terrain.
Nikolay I. Shiklomanov, Dmitry A. Streletskiy, Jonathon D. Little, Frederick E. Nelson   +3 more
openaire   +1 more source

Brief Communication: Future avenues for permafrost science from the perspective of early career researchers [PDF]

The Cryosphere, 2015
Accelerating climate change and increased economic and environmental interests in permafrost-affected regions have resulted in an acute need for more directed permafrost research.
M. Fritz, B. N. Deshpande, F. Bouchard, E. Högström, J. Malenfant-Lepage, A. Morgenstern, A. Nieuwendam, M. Oliva, M. Paquette, A. C. A. Rudy, M. B. Siewert, Y. Sjöberg, S. Weege   +12 more
doaj   +1 more source

Coastal permafrost landscape development since the Late Pleistocene in the western Laptev Sea, Siberia [PDF]

, 2011
The palaeoenvironmental development of the western Laptev Sea is understood primarily from investigations of exposed cliffs and surface sediment cores from the shelf.
Andreev, Andrei, Grigoriev, M. N., Kunitsky, V. V., Murray, A., Overduin, Pier Paul, Schirrmeister, Lutz, Winterfeld, Maria   +6 more
core   +1 more source