Key indicators of Arctic climate change: 1971–2017

JE Box, WT Colgan, TR Christensen… - Environmental …, 2019 - iopscience.iop.org
Key observational indicators of climate change in the Arctic, most spanning a 47 year period
(1971–2017) demonstrate fundamental changes among nine key elements of the Arctic …

A synthesis of the arctic terrestrial and marine carbon cycles under pressure from a dwindling cryosphere

FJW Parmentier, TR Christensen, S Rysgaard… - Ambio, 2017 - Springer
The current downturn of the arctic cryosphere, such as the strong loss of sea ice, melting of
ice sheets and glaciers, and permafrost thaw, affects the marine and terrestrial carbon cycles …

Sensitivity of methane emissions to later soil freezing in Arctic tundra ecosystems

KA Arndt, WC Oechel, JP Goodrich… - Journal of …, 2019 - Wiley Online Library
The atmospheric methane (CH4) concentration, a potent greenhouse gas, is on the rise
once again, making it critical to understand the controls on CH4 emissions. In Arctic tundra …

Seasonal dynamics of methane and carbon dioxide evasion from an open system pingo: Lagoon pingo, Svalbard

AJ Hodson, A Nowak, KR Redeker… - Frontiers in Earth …, 2019 - frontiersin.org
The processes associated with the release of CH4 and CO2 from sub-permafrost
groundwaters are considered through a year-long monitoring investigation at a terrestrial …

[PDF][PDF] Functional microbial ecology in arctic soils: the need for a year-round perspective

SWM Poppeliers, M Hefting, E Dorrepaal… - FEMS microbiology …, 2022 - academic.oup.com
The microbial ecology of arctic and sub-arctic soils is an important aspect of the global
carbon cycle, due to the sensitivity of the large soil carbon stocks to ongoing climate …

[HTML][HTML] Sub-permafrost methane seepage from open-system pingos in Svalbard

AJ Hodson, A Nowak, MT Hornum, K Senger… - The …, 2020 - tc.copernicus.org
Methane release from beneath lowland permafrost represents an important uncertainty in
the Arctic greenhouse gas budget. Our current knowledge is arguably best developed in …

Abrupt permafrost thaw accelerates carbon dioxide and methane release at a tussock tundra site

H Rodenhizer, F Belshe, G Celis… - Arctic, Antarctic, and …, 2022 - Taylor & Francis
Abrupt thaw could cause permafrost ecosystems to release more carbon than is predicted
from gradual thaw alone. However, thermokarst feature mapping is limited in scope, and …

Methane efflux measured by eddy covariance in Alaskan upland tundra undergoing permafrost degradation

MA Taylor, G Celis, JD Ledman… - Journal of …, 2018 - Wiley Online Library
Greenhouse gas emissions from thawing permafrost in arctic ecosystems may amplify global
warming, yet estimates of the rate of carbon release, and the proportion of carbon released …

[HTML][HTML] Methane emission from pan-Arctic natural wetlands estimated using a process-based model, 1901–2016

A Ito - Polar Science, 2019 - Elsevier
The vast pan-Arctic wetlands appear to be a large source of methane (CH 4), a potent
greenhouse gas. Here, I simulated CH 4 emission from pan-Arctic wetlands (above 60° N) …

Upscaling methane flux from plot level to eddy covariance tower domains in five Alaskan tundra ecosystems

Y Wang, F Yuan, KA Arndt, J Liu, L He, Y Zuo… - Frontiers in …, 2022 - frontiersin.org
Spatial heterogeneity in methane (CH4) flux requires a reliable upscaling approach to reach
accurate regional CH4 budgets in the Arctic tundra. In this study, we combined the CLM …