Results 71 to 80 of about 5,638 (244)
Effects of Hillslope Thermokarst in Northern Alaska [PDF]
Eos, Transactions American Geophysical Union, 2009 Permafrost thawing is increasing in the Arctic and sub‐Arctic [Osterkamp and Romanovsky, 1996; Osterkamp, 2007] in response to climate warming [Hassol, 2004]. One consequence of thawing permafrost is the development of thermokarst (physical depression of ground surface) because of reduced support of overlying soil [Jorgenson et al., 2006].
Michael N. Gooseff +3 more
openaire +1 more source
Earth and Space Science, Volume 13, Issue 8, August 2026.Abstract Arctic fires in permafrost landscapes have become more frequent in recent years with record fire years in Eastern Siberia in 2019, 2020 and 2021. The consumption of organic layer and charring of the landscape can deepen active layer and long‐term permafrost ground deformation.
Sonam Wangchuk +6 more
wiley +1 more source
Социально-экологические технологии, 2019 Currently, palsa mires in the southern limit of circumpolar permafrost zone are characterized by an increased intensity of thermokarst processes. In the south of Nature Park Numto the cyclic character of frozen mound formation was replaced by their ...
E.A. Shishkonankova +3 more
doaj +1 more source
Reassessing Alpine Permafrost Thermal State by Accounting for Ground Ice
Earth's Future, Volume 14, Issue 8, August 2026.Abstract Permafrost thermal state, representing the stored “cold energy” in the ground, is crucial for assessing permafrost changes. However, the conventional metric, mean annual ground temperature (MAGT), has inherent limitations because it overlooks the thermodynamic contribution of ground ice.
Hailong Ji +4 more
wiley +1 more source
Divergent Determinants on Carbon and Nitrogen Exports From Major Arctic Rivers
Water Resources Research, Volume 62, Issue 8, August 2026.Abstract Rapid Arctic warming plays a crucial role in changes of vegetation, hydrology and permafrost, substantially affecting the riverine carbon and nitrogen dynamics; however, their long‐term trajectories and dominant controls remain uncertain. Here, by combining observations and model simulations in six major Arctic rivers, we estimate the changes ...
Fumei Liu +12 more
wiley +1 more source
Arctic Thermokarst Lakes – Carbon Comes and Goes [PDF]
This PhD project focused on the physical and biogeochemical variability of Arctic thermokarst lake sediments and the resulting impact on the greenhouse gas (GHG) emissions of these lakes.
Meisel, Ove Hanns; id_orcid
core +1 more source
Thermokarst Lagoons - Carbon Pools and Panarctic Distribution
, 2020 The permafrost carbon (C) pool is a major storage component of the terrestrial C cycle and it is vulnerable in a warming climate. Permafrost carbon is mobilized by different processes of thaw and erosion, including thermokarst and thermo-erosion.
Jenrich, Maren
core +1 more source
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.Abstract Differential thaw subsidence is one of the main effects of ice‐rich permafrost degradation, especially in the discontinuous permafrost zone. Although thawing of ice‐rich permafrost can lead to thermokarst, water ponding, and major damage to critical northern infrastructure, thaw subsidence is not often monitored due to the lack of long‐term ...
M. St‐Cyr, R. Fortier, J. W. Molson
wiley +1 more source
Archaeometry, Volume 68, Issue 4, Page 620-632, August 2026.ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie +5 more
wiley +1 more source