Results 1 to 10 of about 1,188 (146)

A synoptic account of flora in the National Wetland Park of the Alpine Permafrost Zone, Jimunai, Xinjiang [PDF]

open access: yesBiodiversity Data Journal
The alpine periglacial wetland, situated near the alpine snow belt, represents one of the most extreme wetland ecosystems. The National Wetland Park in the Jimunai alpine periglacial zone, Xinjiang, China, is located within the the Mus Island glacier ...
Qiumei Cao   +4 more
doaj   +4 more sources

Contrasting Patterns of the Bacterial Communities in Melting Ponds and Periglacial Rivers of the Zhuxi glacier in the Tibet Plateau [PDF]

open access: yesMicroorganisms, 2020
Since the early 21st century, global climate change has been inducing rapid glacier retreat at an unprecedented rate. In this context, the melt ponds impart increasing unique footprints on the periglacial rivers due to their hydrodynamic connection ...
Yang Hu   +7 more
doaj   +2 more sources

Sedimentary ancient DNA and pollen reveal the composition of plant organic matter in Late Quaternary permafrost sediments of the Buor Khaya Peninsula (north-eastern Siberia) [PDF]

open access: yesBiogeosciences, 2017
Organic matter deposited in ancient, ice-rich permafrost sediments is vulnerable to climate change and may contribute to the future release of greenhouse gases; it is thus important to get a better characterization of the plant organic matter within such
H. H. Zimmermann   +7 more
doaj   +1 more source

Dissolved organic carbon (DOC) in Arctic ground ice [PDF]

open access: yesThe Cryosphere, 2015
Thermal permafrost degradation and coastal erosion in the Arctic remobilize substantial amounts of organic carbon (OC) and nutrients which have accumulated in late Pleistocene and Holocene unconsolidated deposits.
M. Fritz   +6 more
doaj   +1 more source

Observation-based modelling of permafrost carbon fluxes with accounting for deep carbon deposits and thermokarst activity [PDF]

open access: yesBiogeosciences, 2015
High-latitude soils store vast amounts of perennially frozen and therefore inert organic matter. With rising global temperatures and consequent permafrost degradation, a part of this carbon stock will become available for microbial decay and eventual ...
T. Schneider von Deimling   +8 more
doaj   +1 more source

Regional Morpho-Kinematic Inventory of Slope Movements in Northern Norway

open access: yesFrontiers in Earth Science, 2021
Mountain slopes in periglacial environments are affected by frost- and gravity-driven processes that shape the landscape. Both rock glaciers and rockslides have been intensively inventoried worldwide.
Line Rouyet   +11 more
doaj   +1 more source

Frozen ponds: production and storage of methane during the Arctic winter in a lowland tundra landscape in northern Siberia, Lena River delta [PDF]

open access: yesBiogeosciences, 2015
Lakes and ponds play a key role in the carbon cycle of permafrost ecosystems, where they are considered to be hotspots of carbon dioxide CO2 and methane CH4 emission.
M. Langer   +4 more
doaj   +1 more source

The Northwest Territories Thermokarst Mapping Collective: a northern-driven mapping collaborative toward understanding the effects of permafrost thaw

open access: yesArctic Science, 2023
This paper documents the first comprehensive inventory of thermokarst and thaw-sensitive terrain indicators for a 2 million km2 region of northwestern Canada. This is accomplished through the Thermokarst Mapping Collective (TMC), a research collaborative
Steven V. Kokelj   +26 more
doaj   +1 more source

Deciphering Small-Scale Seasonal Surface Dynamics of Rock Glaciers in the Central European Alps Using DInSAR Time Series

open access: yesRemote Sensing, 2023
The Essential Climate Variable (ECV) Permafrost is currently undergoing strong changes due to rising ground and air temperatures. Surface movement, forming characteristic landforms such as rock glaciers, is one key indicator for mountain permafrost ...
Sebastian Buchelt   +6 more
doaj   +1 more source

Increasing coastal slump activity impacts the release of sediment and organic carbon into the Arctic Ocean [PDF]

open access: yesBiogeosciences, 2018
Retrogressive thaw slumps (RTSs) are among the most active thermokarst landforms in the Arctic and deliver a large amount of material to the Arctic Ocean. However, their contribution to the organic carbon (OC) budget is unknown.
J. L. Ramage   +6 more
doaj   +1 more source

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