Results 1 to 10 of about 962,375 (304)

Distinguishing ice-rich and ice-poor permafrost to map ground temperatures and ground ice occurrence in the Swiss Alps [PDF]

open access: yesThe Cryosphere, 2019
Mountain permafrost is invisible, and mapping it is still a challenge. Available permafrost distribution maps often overestimate the permafrost extent and include large permafrost-free areas in their permafrost zonation.
R. Kenner   +4 more
doaj   +5 more sources

Towards accurate quantification of ice content in permafrost of the Central Andes – Part 2: An upscaling strategy of geophysical measurements to the catchment scale at two study sites [PDF]

open access: yesThe Cryosphere, 2022
With ongoing climate change, there is a pressing need to better understand how much water is stored as ground ice in areas with extensive permafrost occurrence, as well as how the regional water balance may alter in response to the potential generation ...
T. Mathys   +4 more
doaj   +1 more source

Simulating ice segregation and thaw consolidation in permafrost environments with the CryoGrid community model [PDF]

open access: yesThe Cryosphere, 2023
The ground ice content in cold environments influences the permafrost thermal regime and the thaw trajectories in a warming climate, especially for soils containing excess ice. Despite their importance, the amount and distribution of ground ice are often
J. Aga   +7 more
doaj   +1 more source

Top-of-permafrost ground ice indicated by remotely sensed late-season subsidence [PDF]

open access: yesThe Cryosphere, 2021
Ground ice is foundational to the integrity of Arctic ecosystems and infrastructure. However, we lack fine-scale ground ice maps across almost the entire Arctic, chiefly because there is no established method for mapping ice-rich permafrost from space ...
S. Zwieback, F. J. Meyer
doaj   +1 more source

Dissolved Organic Carbon (DOC) in Ground Ice on Northeastern Tibetan Plateau

open access: yesFrontiers in Earth Science, 2022
Ground ice in permafrost stores substantial amounts of dissolved organic carbon (DOC) upon thaw, which may perpetuate a carbon feedback in permafrost regions, yet little is known to date about the dynamics of DOC and source variability of ground ice on ...
Yuzhong Yang   +8 more
doaj   +1 more source

Genetic Identification Of Ground Ice By Petrographic Method

open access: yesGeography, Environment, Sustainability, 2021
The advantages and limitations of the petrography method and the relevance of its use for the study of natural ice are reviewed in the present work. The petrographic method of ground ice study is often used for solving paleogeographic issues.
Yana V. Tikhonravova   +2 more
doaj   +1 more source

New ground ice maps for Canada using a paleogeographic modelling approach [PDF]

open access: yesThe Cryosphere, 2019
Ground ice melt caused by climate-induced permafrost degradation may trigger significant ecological change, damage infrastructure, and alter biogeochemical cycles. The fundamental ground ice mapping for Canada is now >20 years old and does not include
H. B. O'Neill, S. A. Wolfe, C. Duchesne
doaj   +1 more source

Formation of Gas-Emission Craters in Northern West Siberia: Shallow Controls

open access: yesGeosciences, 2021
Gas-emission craters discovered in northern West Siberia may arise under a specific combination of shallow and deep-seated permafrost conditions. A formation model for such craters is suggested based on cryological and geological data from the Yamal ...
Evgeny Mikhailovich Chuvilin   +4 more
doaj   +1 more source

Recognition and Classification of Martian Chaos Terrains Using Imagery Machine Learning: A Global Distribution of Chaos Linked to Groundwater Circulation, Catastrophic Flooding, and Magmatism on Mars

open access: yesRemote Sensing, 2022
Martian chaos terrains are fractured depressions consisting of block landforms that are often located in source areas of outflow channels. Numerous chaos and chaos-like features have been found on Mars; however, a global-scale classification has not been
Hiroki Shozaki   +3 more
doaj   +1 more source

Using ground-based thermal imagery to estimate debris thickness over glacial ice: fieldwork considerations to improve the effectiveness

open access: yesJournal of Glaciology, 2023
Debris-covered glaciers are an important component of the mountain cryosphere and influence the hydrological contribution of glacierized basins to downstream rivers.
Caroline Aubry-Wake   +4 more
doaj   +1 more source

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