Results 91 to 100 of about 854,536 (203)
The formation of oriented thermokarst lakes on the Arctic Coastal Plain of northern Alaska has been the subject of debate for more than half a century.
Shengan Zhan +4 more
doaj +1 more source
Thermokarst lakes increased atmospheric methane levels [PDF]
Ice cores taken from Greenland indicate that during the last deglaciation, approximately 10,000 years ago, increases in temperature occurred at the same times as increases in atmospheric methane, a potent greenhouse gas. The source of the increase in atmospheric methane is still debated, but it has been suggested that thermokarst lakes, which form from
openaire +1 more source
Methane Uptake by Inland Waters: Fact or Fiction?
Abstract Inland waters are widely known as net emitters of methane (CH4) to the atmosphere, contributing ∼15% of global CH4 emissions. CH4 is produced by anaerobic methanogens in aquatic sediments, but net CH4 emissions at the water–air interface are modulated by CH4 oxidation by methanotrophs in the water column.
Mike Peacock, Jackie Webb
wiley +1 more source
Accelerating climate change intensifies permafrost degradation and thermokarst hazards on the Qinghai-Tibet Plateau (QTP), threatening ecosystems and infrastructure.
Tiantian Li +9 more
doaj +1 more source
Abstract As the climate warms, understanding permafrost distribution along linear infrastructure is a key aspect of assessing, mitigating, and adapting to the risks associated with permafrost thaw. Electrical resistivity tomography (ERT) is becoming an increasingly common tool for evaluating permafrost distribution at the infrastructure scale.
T. Herring +4 more
wiley +1 more source
Remote sensing of drained thermokarst lake basin successions [PDF]
Thermokarst lakes are important factors for permafrost landscape dynamics and carbon cycling. Thermokarst lake cover is particularly high in Arctic lowlands with ice-rich permafrost.
Nitze, Ingmar +8 more
core +1 more source
In the northern Da Xing'anling Mountains of Northeast China, thermokarst lakes have undergone significant changes. These changes are particularly evident along the Highway X302, which stretches from Yakeshi in the south to Yitulihe in the north, across ...
JunHe Liang +18 more
doaj +1 more source
Józefów site is a case study which provides a detailed record of environmental and climate changes and confirms the main traces of the landscape morphogenesis of the Late Pleistocene established in central‐eastern Europe. This study presents a multiproxy reconstruction of palaeoenvironment under variable climatic conditions from the retreat of the ...
Aleksandra Majecka +11 more
wiley +1 more source
Permafrost Detachment Slides: A Distinct High‐Magnitude Permafrost Mass Wasting Process
Abstract Warming permafrost is destabilizing landscapes, intensifying thaw‐driven mass wasting and giving rise to novel landslide forms. We characterize two recent (2017 and 2018), deep‐seated translational failures that we term Permafrost Detachment Slides (PDSs), which rapidly translocated 4.5 and 18 × 106 m3 of frozen material into downstream ...
J. M. Young +7 more
wiley +1 more source
Rapid permafrost thaw by thermokarst mobilizes previously frozen organic matter (OM) down to tens of meters deep within decades to centuries, leading to microbial degradation and greenhouse gas release. Late Pleistocene ice-rich Yedoma deposits that thaw
Loeka L. Jongejans +9 more
doaj +1 more source

